Review · secondary evidenceReview

The chemistry and role of surface-mounted metal-organic frameworks (SURMOFs) in next-generation nanoelectronics

Authors unavailable · Coordination Chemistry Reviews · 2025

This dossier represents secondary evidence: section summaries, claims and benchmarks are paraphrased for this database, not quoted. Check quantitative values against the linked primary study, and cite the review itself (10.1016/j.ccr.2025.216761) for its arguments.

8review sections
8material families
15review claims
20secondary benchmarks
24cited studies
7research gaps

Review scope

To review SURMOF chemistry, layer-by-layer preparation, anchoring, charge-transport mechanisms and nanoelectronic applications, including sensors, photoelectronic devices, electrochromic devices, diodes, memristors, triboelectric nanogenerators and thermoelectric devices.

Coverage
2007–2025
Category
Review Thermoelectric
Material scope
SURMOFs · HKUST-1 thin films · SURMOF-2 and porphyrin SURMOFs · M2L2P SURMOFs · heteroligand and heterometal SURMOFs · guest-modified SURMOFs
Transport scope
through-bond transport · through-space transport · redox hopping · guest-promoted hopping · charge-transfer and donor-acceptor effects · thermoelectric Seebeck response
Application scope
electric sensors · photoelectronic and photovoltaic devices · electrochromic devices · diodes and rectifiers · memristors · triboelectric nanogenerators · thermoelectric devices · flexible and biointerface electronics
Explicit exclusions
Bulk MOF primary-data extraction · Full synthesis recipes · Complete bibliography transcription · Non-electronic SURMOF applications except as context
Source
1 · Abstract
Evidence role
Context, taxonomy and secondary benchmarking

Section map

The review’s argument is preserved as a navigable set of section summaries.

Applications for Nano-scale electronic devices

6-10

Surveys device demonstrations across electrical sensors, photoelectronic devices, electrochromic coatings, rectifiers, memristors, TENGs and thermoelectrics.

Relevance: Core · 6 · Applications for Nano-scale electronic devices · Table 2

Molecules and anchoring chemistry in SURMOF

2-3

Treats SURMOFs as assemblies of surface-functionalising molecules, metal ions and organic linkers, with emphasis on SAM anchoring and alternative NHC anchors.

Relevance: Core · 2-3 · Structure of SURMOFs · Fig. 3

Conclusion and future directions

10-11

Synthesises progress since 2007 and identifies limits in stability, conductivity, SAM/substrate diversity, thermoelectric depth and bioelectronic translation.

Relevance: Core · 10-11 · Conclusion and future directions

Heterogenous SURMOFs

3-4

Reviews heteroligand and heterometal designs that tune transport, exciton migration, energy levels and interfacial electronic properties.

Relevance: Core · 3 · Heterogenous SURMOFs

Introduction

1

Defines SURMOFs as surface-grown crystalline porous films and frames their advantage over bulk MOFs in thickness, orientation, uniformity and device integration.

Relevance: Core · 1 · Introduction

Layer-by-layer preparation of SURMOFs

2

Summarises solution-based epitaxial growth routes, including dipping, spraying, pumping, spin-coating and Langmuir-Blodgett deposition.

Relevance: Core · 2 · Layer-by-layer preparation of SURMOFs · Fig. 2

Postmodification

4-6

Covers post-synthetic functionalisation and guest-molecule loading as routes to new surface chemistry, conductivity, rectification, switching and magnetic behaviour.

Relevance: Core · 4-5 · Postmodification

Charge transport mechanism in SURMOFs

1-2

Organises charge transport in MOFs/SURMOFs into through-bond, through-space and hopping pathways, with guest-promoted hopping as an extrinsic route.

Relevance: Core · 1-2 · Charge transport mechanism in SURMOFs · Fig. 1; Table 1

Taxonomies

Classification systems are attributed to this review and are not treated as a global material registry.

Device Function Enabled By SURMOF FilmsAuthor-proposed

Electronic application classes

Table 2 groups SURMOF nanofilms by device class, substrate/electrode configuration, dopant and synthesis route.

Categories: electric sensor · photoelectronic device · electrochromic device · diode · memristor · triboelectric nanogenerator · thermoelectric device

21 · Applications for Nano-scale electronic devices · Table 2

Molecular Role In Film ConstructionAuthor-proposed

SURMOF component classes

A component-level framework for discussing anchoring, metal-node choice and linker-driven pore/electronic tuning.

Categories: substrate-functionalizing molecules · metal ions · organic linkers

2-3 · Structure of SURMOFs · Fig. 3

How Substrate, Metal Source And Linker Are Sequentially ContactedAuthor-proposed

Solution-based LBL growth methods

The review classifies SURMOF preparation by representative LBL/LPE delivery geometries and their scale, uniformity and automation implications.

Categories: dipping · spraying · pumping · spin-coating · Langmuir-Blodgett deposition

2 · Layer-by-layer preparation of SURMOFs · Fig. 2

Source Of Framework HeterogeneityAuthor-proposed

Heterogeneous SURMOF design

Separates heterogeneous SURMOFs by whether different ligands, metals, dopants or stacked blocks generate tuned interfacial and electronic responses.

Categories: heteroligand · heterometal · p-type/n-type dopant junctions · sequential blocks · single mixed block

3 · Heterogenous SURMOFs

How Chemistry Is Changed After SURMOF GrowthAuthor-proposed

Postmodification routes

Distinguishes surface-only modification from pore/guest strategies that change conductivity, rectification, switching or molecular selectivity.

Categories: surface functional group installation · click chemistry · guest molecule loading · polymerisation in pores · metal-ion or nanoparticle doping

4-5 · Postmodification

Dominant Route For Carrier Movement In MOF/SURMOF StructuresAuthor-proposed

Charge transport pathways

Through-bond uses continuous coordination/covalent pathways; through-space uses pi-stacking; hopping uses redox-active centres; guest species add carrier and guest-framework pathways.

Categories: through-bond · through-space · redox hopping · guest-promoted hopping

1-2 · Charge transport mechanism in SURMOFs · Fig. 1; Table 1

Material families

Review-defined families retain their representative materials and conduction descriptions.

Cu(TCNQ) SURMOF films

Homogeneous Hydrophobic SURMOF Thin Films

TCNQ-linked Cu SURMOF thin films used for rectifying behaviour after iodine exposure.

Conduction: Iodine changes TCNQ oxidation states and creates asymmetric electronic imbalance through depth-dependent oxidation.

Representative materials: Cu(TCNQ) · I2-doped Cu(TCNQ)

Nodes / linkers: Cu · TCNQ · iodine dopant

8-9 · Diode

p-n and n-p heterogeneous SURMOF junctions

Vertical Heterojunction SURMOF Stack

MOF-on-MOF stacks combining p-type anthracene SURMOF with n-type C60-containing SURMOF.

Conduction: Rectification depends on interface order, energy alignment and defect asymmetry across the p-n/n-p stack.

Representative materials: p-Cu2(ADC)2(DABCO)/n-C60@Cu2(BDC)2(DABCO) · n-p SURMOF

Nodes / linkers: Cu · ADC · BDC · DABCO · C60

8 · Diode

HKUST-1-based SURMOFs

3D Porous SURMOF Thin Films; Often Oriented On SAM-Functionalized Surfaces

Cu-BTC SURMOF family repeatedly used for sensors, diodes, memristors and thermoelectric demonstrations.

Conduction: Frequently relies on guest-mediated hopping, redox mediation, humidity/defect states or dopant-induced carrier changes.

Representative materials: HKUST-1 SURMOF · Fc@HKUST-1 · PPy@HKUST-1 · TCNQ@HKUST-1

Nodes / linkers: Cu · BTC · guest molecules: ferrocene, PPy, TCNQ

10 · Conclusion and future directions

Lanthanide heterometal SURMOFs

Layered Heteroepitaxial SURMOF Stacks

Sequential Tb/Eu/Gd-BTC SURMOF layers used to tune photoluminescent colour and energy transfer.

Conduction: Discussed primarily for energy-transfer and emission tuning rather than charge conductivity.

Representative materials: Tb/Eu-BTC SURMOF · Tb/Eu/Gd-BTC SURMOF

Nodes / linkers: Tb · Eu · Gd · BTC

4 · Hetero metals

M2L2P paddle-wheel SURMOFs

Layer-And-Pillar SURMOF Thin Films

Layer-and-pillar Cu paddle-wheel SURMOFs assembled from dicarboxylate layer linkers and DABCO-like pillars.

Conduction: Used for selective sensing, TENG polarity tuning and heterojunction device construction rather than as intrinsically high-conductivity films.

Representative materials: Cu2(BDC)2(DABCO) · Cu2(NH2-BDC)2(DABCO) · Cu2(F4-BDC)2(DABCO) · [Cu2(CAM)2DABCO]n

Nodes / linkers: Cu · BDC · NH2-BDC · F4-BDC · DABCO · CAM

6 · Electric sensor

MIL-53 flexible SURMOF memristors

Flexible 150 Nm SURMOF Film On Soft Composite Substrate

Breathing MIL-53 SURMOF thin films grown on flexible Galinstan/PDMS electrodes for RRAM behaviour.

Conduction: Switching is interpreted through electrochemically reduced Ga conductive filaments stabilised by the MOF nanofilm topology.

Representative materials: MIL-53/GaInSn@PDMS/Ag

Nodes / linkers: Al · BDC

10 · Memristor

Zn2(PDICl4)2 electrochromic SURMOF-2

Oriented 2D-Sheet SURMOF-2 Coatings On Rigid And Flexible Transparent Conductors

Well-aligned PDICl4-based Zn SURMOF-2 coatings used for reversible voltage-induced colour changes.

Conduction: Electrochromism arises from redox changes of the conjugated PDICl4 linker and Li+/electrolyte interactions with radical states.

Representative materials: Zn2(PDICl4)2@ITO · Zn2(PDICl4)2@AgNW/glass · Zn2(PDICl4)2@AgNW/PET

Nodes / linkers: Zn · PDICl4

8 · Electrochromic device

Porphyrin/Zn-SURMOF-2 photoelectronic films

Oriented SURMOF Thin Films And Donor-Acceptor Pore-Loaded Variants

Zn-based SURMOF-2 thin films using porphyrinic linkers and, in some cases, donor/acceptor modification.

Conduction: Photoinduced charge generation is interpreted through porphyrin absorption, indirect band-gap effects and donor-acceptor transfer.

Representative materials: Zn-SURMOF-2 · Pd-DCPP-Zn-SURMOF-2 · DPA-Zn-SURMOF-2 · C60@Zn(TPP)

Nodes / linkers: Zn · Pd metalloporphyrin centres · DCPP · Pd-DCPP · DPA-Zn-DCPP · TPP · C60 guest

7 · Photoelectronic device

Synthesis strategies

Review-level synthesis principles remain separate from primary-study recipes.

Surface anchoring and SAM selection

Functional groups on SAMs or activated substrates coordinate metal ions and template oriented SURMOF growth.

Claimed effects: Anchoring chemistry controls film orientation, stability and device interface behaviour; NHCs are highlighted as stronger alternatives to thiols.

Controlling variables: anchor group · SAM packing · substrate work function · anchoring geometry · surface activation

Representative materials: NHC-[Cu2(CAM)2DABCO]n · thiol-anchored HKUST-1 · hydroxyl-activated MIL-53

Caveat: The review explicitly identifies the present SAM/substrate set as limited and stability-sensitive.

3 · Structure of SURMOFs

Dipping / liquid-phase epitaxy

Alternating immersion in metal-ion and linker solutions builds SURMOF layers on functionalised substrates.

Claimed effects: Standard route for high-quality SURMOFs with precise control over film thickness, orientation and crystallinity.

Controlling variables: number of cycles · metal/linker sequence · substrate functionalisation · manual versus automated immersion

Representative materials: HKUST-1 · In(TCPP) · MIL-53 · Cu(TCNQ) · M2L2P heterojunctions

Caveat: Recipe details and device performance remain primary-paper matters; the review treats LPE at strategy level.

2 · Dipping method

Guest-molecule modification

Introduce redox-active guests, dopants, nanoparticles or polymers into SURMOF pores after growth.

Claimed effects: Can enhance conductivity and introduce rectification or resistive switching absent in pristine SURMOFs.

Controlling variables: guest identity · loading method · activation · pore accessibility · guest-framework interaction

Representative materials: Fc@HKUST-1 · I2-doped Cu(TCNQ) · PPy@HKUST-1 · TCNQ@HKUST-1

Caveat: Guest placement and host-guest crystallography are often insufficiently resolved.

5 · Guest-molecule Modification

Heteroligand and heterometal layering

Sequentially vary ligands or metal ions during LBL growth to form blocks, mixed-linker phases or heterometal stacks.

Claimed effects: Enables nanoscale tuning of conductivity, energy alignment, charge localisation, exciton migration and interfacial electronics.

Controlling variables: ligand identity · metal identity · layer order · pore-size matching · pKa · interface lattice mismatch

Representative materials: MTV-SURMOF · Tb/Eu-BTC SURMOF · p-n SURMOF

Caveat: Interface defects and layer order can dominate device performance.

3 · Heterogenous SURMOFs

Pumping / flow delivery

Pump systems deliver metal and linker solutions through nozzles or microchannels to maintain controlled flow rates.

Claimed effects: Improves uniformity and reproducibility and is positioned as useful for large-scale production.

Controlling variables: flow rate · reaction chamber design · substrate holder · delivery channel geometry

Representative materials: HKUST-1 · Zn(TCPP) · Cu2(BDC)2(DABCO) · TCNQ@HKUST-1

Caveat: The review gives strategy-level examples but not scale-up validation across device classes.

2 · Pumping method

Spin-coating LBL

Alternating solutions are dispensed on a rotating substrate to spread thin layers by centrifugal force.

Claimed effects: Rapid growth, efficient chemical use and uniform thin films with controlled composition.

Controlling variables: rotation speed · solution volume · cycle count · linker/metal alternation

Representative materials: Zn(TPP) · C60@Zn(TPP) · Zn(R-MeBINOL-PorDC)

Caveat: Performance depends strongly on interlayer coupling and film densification.

2 · Spin-coating method

Spray-coating LBL

Metal, linker and rinse streams are atomised through nozzles onto a substrate to grow multilayer coatings.

Claimed effects: Conserves solution, enables local functionalisation and rapid automated setup for uniform coatings.

Controlling variables: nozzle configuration · spray cycles · rinsing/drying · precursor concentration · automation

Representative materials: HKUST-1 · Fc@HKUST-1 · DPA-Zn-SURMOF-2 · Zn2(PDICl4)2

Caveat: Uniformity and electronics depend on electrode and substrate integration, not only growth method.

2 · Spraying method

Review claims

These are the review authors’ synthesis, not newly measured results.

Author InterpretationMedium supportCaveat

Thiol/S-Au anchoring is widely used but limited by weaker bonding, high-temperature instability and ill-defined binding geometry; NHC anchors are a stabilising alternative.

Evidence basis: multi_reference

Caveat: The review does not provide a broad device-level statistical comparison of anchor types.

3 · Structure of SURMOFs

SpeculativeMedium supportApplication Relevance

The authors argue that SURMOFs could translate electroactive MOF behaviour into bioelectronics because anisotropic growth, anchoring and crystallinity address limitations of conventional MOF films.

Evidence basis: review_reasoning

Caveat: This is an outlook extrapolation from MOF biointerface examples, not a mature SURMOF evidence base.

11 · Conclusion and future directions

Consensus SummaryHigh supportDefinition Scope

SURMOFs are surface-grown crystalline porous films whose LBL synthesis gives more precise thickness, orientation and uniformity control than bulk MOFs.

Evidence basis: multi_reference

Caveat: The statement is a review-level generalisation; individual film quality must be checked in primary studies.

1 · Introduction

Author InterpretationHigh supportCaveat

DPA modification improves light absorption and charge separation in Zn-SURMOF-2, but mobility and interlayer coupling still limit photovoltaic performance.

Evidence basis: single_reference

Caveat: Device-specific benchmark; primary paper needed for architecture details.

7 · Photoelectronic device

Author InterpretationHigh supportTransport Mechanism

PDICl4-based electrochromic SURMOFs switch colour through voltage-driven linker redox states modulated by electrolyte cations.

Evidence basis: multi_reference

Caveat: Electrolyte formulation changes the radical state and colour response.

8 · Electrochromic device

Author InterpretationHigh supportApplication Relevance

SURMOFs can be grown on flexible polymers and biological leaf surfaces, supporting wearable and irregular-substrate electronics.

Evidence basis: multi_reference

Caveat: Long-term durability and practical integration remain early-stage.

10 · Conclusion and future directions

Consensus SummaryHigh supportStructure Property Link

Guest loading can increase SURMOF conductivity or add rectification/switching by creating additional carriers, redox hopping or donor-acceptor pathways.

Evidence basis: multi_reference

Caveat: Guest loading can also introduce stability and structural-assignment uncertainties.

5 · Guest-molecule Modification

Author InterpretationHigh supportStructure Property Link

Heterogeneous SURMOFs add nanoscale tunability of charge transport, exciton migration, energy-level alignment and interfacial electronics beyond homogeneous frameworks.

Evidence basis: multi_reference

Caveat: Some examples are optical or adsorption-centred rather than direct charge-transport devices.

3 · Heterogenous SURMOFs

Author InterpretationHigh supportStructure Property Link

SURMOF p-n/n-p diode performance depends strongly on heterointerface order and defects, with p-n stacks outperforming n-p stacks in the reviewed example.

Evidence basis: single_reference

Caveat: Based on one heterojunction system and secondary review interpretation.

8 · Diode

Author InterpretationMedium supportMeasurement Interpretation

Humidity and defect-associated water states can dominate HKUST-1 SURMOF rectification, NDR and resistive switching behaviour.

Evidence basis: multi_reference

Caveat: Useful for mechanism discussion but also highlights environmental reproducibility risks.

9 · Diode; Memristor

Author InterpretationHigh supportSynthesis Strategy

LBL/LPE growth is central to SURMOF device relevance because it links film thickness, orientation and substrate integration to electronic performance.

Evidence basis: review_reasoning

Caveat: The review does not establish universal process-performance laws for every device class.

2 · Layer-by-layer preparation of SURMOFs

Consensus SummaryHigh supportApplication Relevance

Porphyrin SURMOFs are repeatedly used for photoelectronic devices because their planar pi systems and visible absorption favour light harvesting and charge separation.

Evidence basis: multi_reference

Caveat: Practical photovoltaic efficiency remains low in several examples.

7 · Photoelectronic device

Author InterpretationMedium supportMeasurement Interpretation

Electrical SURMOF sensors can detect guest adsorption through current changes, but top-electrode choice can limit practical interpretation and deployment.

Evidence basis: single_reference

Caveat: Specifically tied to Hg-electrode HKUST-1 junctions in the review.

6 · Electric sensor

Author InterpretationHigh supportCaveat

Thermoelectric SURMOFs are promising because porous MOFs can combine low thermal conductivity with tunable electronic conductivity, but the SURMOF thermoelectric literature remains sparse.

Evidence basis: review_reasoning

Caveat: The review highlights only limited HKUST-1/TCNQ examples for SURMOF thermoelectrics.

10-11 · Conclusion and future directions

DescriptiveHigh supportTransport Mechanism

The review frames MOF charge transport through three primary pathways: through-bond, through-space and hopping, with guest-promoted hopping as a practical extension.

Evidence basis: multi_reference

Caveat: This taxonomy is broader than SURMOFs and includes MOF examples in Table 1.

1-2 · Charge transport mechanism in SURMOFs · Fig. 1; Table 1

Secondary benchmarks

Every row remains visibly secondary and links to a primary dossier only where the mapping is verified.

MaterialPropertyReported valueContext and qualityPrimary evidenceReview source
SecondaryZn2(PDICl4)2@AgNW SURMOFcoloration efficiency158 cm2 C−1Flexible AgNW-supported electrochromic SURMOF; orange to blue switching
Text · Exact Reported
No verified corpus mapping8 · Electrochromic device
SecondaryC60@Zn(TPP) SURMOFdark electrical conductivity1.5 × 10−11 S m−1After C60 loading
Text · Exact Reported
No verified corpus mapping7 · Photoelectronic device
Secondaryd-[Cu2(CAM)2DABCO]n SURMOFcurrent response slope to (S)-1-phenylethanol147.6 μA (mM)−1CV in 1 mM K3[Fe(CN)6] with enantiomer probe
Text · Exact Reported
No verified corpus mapping6-7 · Electric sensor
SecondaryDPA-Zn-SURMOF-2photovoltaic efficiency0.017 %FTO/SURMOF/PEDOT:PSS device
Text · Exact Reported
No verified corpus mapping7 · Photoelectronic device
SecondaryFc-loaded HKUST-1 SURMOF electrodecurrent density>100 μA cm−2 at 0.2 V10 mM Fc-loaded SURMOF in diluted ionic liquid
Text · Approximate
No verified corpus mapping6 · Electric sensor
SecondaryFc-loaded HKUST-1 SURMOFcurrent density increase5.4-fold for 5-cycle filmsCompared with unloaded films; Hg top electrode; Fig. 8c
Text · Rounded Reported
No verified corpus mapping6 · Electric sensor
SecondaryCu2(BDC)2-SURMOF-2/GFETethanol limit of detection0.2 mg L−1 (~100 ppm)Ethanol sensing under N2 purging
Text · Exact Reported
No verified corpus mapping6 · Electric sensor
SecondaryHKUST-1 SURMOF heterojunctionpeak-to-valley current ratioPVCR of 2After fifth sweep, 90% RH, NDR under positive voltage below 2 V
Text · Exact Reported
No verified corpus mapping9 · Diode
SecondaryHKUST-1 SURMOF rMN memristorON/OFF ratio~2.3 × 10^6 at 0.4 V80% RH, Au/Ti/Cr rMN electrode
Text · Approximate
No verified corpus mapping9 · Memristor
SecondaryI2-doped Cu(TCNQ) SURMOFrectification ratioapproximately two orders of magnitudeAfter iodine vapour exposure on Au/FTO substrates
Text · Approximate
No verified corpus mapping8-9 · Diode
SecondaryIn(TCPP) SURMOF photodetectordetectivity7.28 × 10^14 Jones420 nm irradiation at 10 V bias
Text · Exact Reported
research_06217 · Photoelectronic device
SecondaryIn(TCPP) SURMOF photodetectorresponsivity30.8 A W−1420 nm irradiation at 10 V bias
Text · Exact Reported
research_06217 · Photoelectronic device
SecondaryMIL-53/GaInSn@PDMS RRAMON/OFF ratioapproximately 200 at −0.1 VOver 20 switching cycles; flexible stretched device
Text · Approximate
No verified corpus mapping10 · Memristor
SecondaryPET/Au/HKUST-1/Au memristorON/OFF ratio18.5 at 0.1 VFlexible PET device; measured at 0.1 V
Text · Exact Reported
No verified corpus mapping9 · Memristor
SecondaryPd porphyrin Zn-SURMOF-2photovoltaic efficiency0.45 %I−/I3− electrolyte top electrode; Fig. 10b
Text · Exact Reported
research_02007 · Photoelectronic device
Secondaryp-n SURMOF heterojunctionrectification ratioapproximately six orders of magnitude100 nm SURMOF thin film, thin Au disk top electrode
Text · Approximate
No verified corpus mapping8 · Diode
SecondaryPPy@HKUST-1 SURMOFelectrical conductivity5 × 10−6 S m−1 after 24 h dopingPyrrole vapour deposition and in situ polymerisation; rMN top electrode
Text · Exact Reported
No verified corpus mapping6 · Electric sensor
SecondaryTCNQ@HKUST-1 SURMOFSeebeck coefficient375 μV K−1 at room temperatureRoom temperature; temperature gradient with Peltier heaters/coolers
Text · Exact Reported
research_045010 · Thermoelectric material
SecondaryTCNQ@HKUST-1 SURMOFthermoelectric figure of merit ZT1.5 × 10−4 at 313 K313 K
Text · Exact Reported
research_045010 · Thermoelectric material
SecondaryCu2(F4-BDC)2(DABCO) SURMOF on Scindapsus leafwind-driven current outputapproximately 0.5 μA at 5 m s−1PDMS paired with SURMOF-coated leaf TENG
Text · Approximate
No verified corpus mapping10 · Triboelectric nanogenerator

Research gaps

Open questions are presented as review-author priorities, not conclusions from the primary database.

Bioelectronic platforms

Low

MOF biointerface examples are promising, but SURMOF-specific bioelectronic platforms need design strategies that preserve orientation, anchoring and reproducibility.

Proposed direction: Translate electroactive bulk-MOF motifs into well-defined SURMOF films for cellular sensing and neuromorphic contexts.

11 · Conclusion and future directions

Environmental reproducibility

Medium

Environmental factors substantially affect MOF conductivity and complicate reproducible sensing/material discovery.

Proposed direction: Perform controlled humidity, atmosphere and defect-state studies alongside electrical measurements.

11 · Conclusion and future directions

Host-guest crystallography

High

The authors identify unresolved crystallographic details of guest species in pores as a barrier to understanding charge-transfer interactions.

Proposed direction: Use detailed structural probes of guest location, loading and framework interaction under device-relevant conditions.

11 · Conclusion and future directions

Electrical conductivity

High

Low electrical conductivity remains a significant limitation despite efforts to tune MOF structure and noncovalent linker interactions.

Proposed direction: Investigate continuous transport pathways, mixed-metal/mixed-linker systems and mechanisms.

11 · Conclusion and future directions

Photoelectronic device engineering

Medium

Porphyrin SURMOF photovoltaics still suffer from low carrier mobility, large interlayer spacing and weak interfacial conductivity.

Proposed direction: Improve film densification, interlayer coupling and device architecture for practical photovoltaics.

7 · Photoelectronic device

Anchoring chemistry and substrate scope

High

The review states that current SAM, metal and substrate selections remain limited, with overreliance on hydroxylated substrates and sulfur anchors.

Proposed direction: Explore broader surface activation strategies, NHC-based SAMs and systematic interface-property studies.

10-11 · Conclusion and future directions

Thermoelectric SURMOFs

Medium

Thermoelectric research on SURMOFs is promising but underexplored relative to other electrical applications.

Proposed direction: Tune intrinsic metals, extended metal-linker bonds and linker noncovalent interactions using LBL structure-performance control.

11 · Conclusion and future directions

Cited-study map

Mappings show which printed review references have a verified counterpart in the frozen primary corpus.

Show 24 cited-study records
ReferenceStudyRole and contextCorpus mapping
Ref. 22007Title unavailablehistorical_origin · synthesis_strategyIntroduced the stepwise LPE/SURMOF concept using HKUST-1 on a carboxyl-terminated SAM.Unmapped
Ref. 292015Title unavailableelectric_sensor · guest_modificationFerrocene-loaded HKUST-1 SURMOF junction benchmark for guest-responsive current increase, but with Hg-electrode caveat.Unmapped
Ref. 302012Title unavailableelectric_sensor · redox_hoppingElectrochemical evidence for ferrocene redox mediation and hopping-like transport in Fc-loaded HKUST-1 SURMOF.Unmapped
Ref. 312021Title unavailableelectric_sensor · GFETSelective ethanol sensing on SURMOF/GFET, used by the review as a non-redox-molecule electrical sensor example.Unmapped
Ref. 322015Title unavailablephotoelectronic_device · photovoltaicPorphyrin-based Zn SURMOF photovoltaic benchmark and indirect-band-gap interpretation.research_0200
Ref. 332016Title unavailablephotoelectronic_device · photovoltaicDPA-modified porphyrin Zn-SURMOF photovoltaic with improved absorption but low mobility and efficiency.Unmapped
Ref. 342019Title unavailablephotoelectronic_device · donor_acceptorC60 loading in porphyrin SURMOF used to illustrate donor-acceptor interfaces and photoconductivity enhancement.Unmapped
Ref. 352021Title unavailablephotoelectronic_device · photodetectorHigh-responsivity In(TCPP) SURMOF photodetector with metal-oxo-chain charge-transfer interpretation.research_0621
Ref. 372023Title unavailableelectrochromic_deviceVoltage-driven PDICl4 radical-state electrochromism in aligned SURMOF-2 on ITO/glass.Unmapped
Ref. 382024Title unavailableelectrochromic_device · flexible_deviceFlexible AgNW-supported electrochromic SURMOF benchmark with switching speed and durability.Unmapped
Ref. 392015Title unavailablememristor · flexible_deviceFlexible PET/Au/HKUST-1/Au memristor benchmark and Cu/carbon-channel switching interpretation.Unmapped
Ref. 402016Title unavailablememristor · guest_modificationFerrocene-loaded HKUST-1 SURMOF memristor example with improved ON/OFF ratio but unresolved switching prediction.Unmapped
Ref. 412020Title unavailablememristor · humidity_effectHumidity-dependent HKUST-1 SURMOF resistive switching with high ON/OFF ratio and water-defect mechanism.Unmapped
Ref. 422019Title unavailablememristor · flexible_deviceFlexible MIL-53/GaInSn@PDMS RRAM benchmark and filament mechanism.Unmapped
Ref. 432021Title unavailablediode · heterostructureMOF-on-MOF p-n/n-p heterojunctions used to show interface-order control of rectification.Unmapped
Ref. 442016Title unavailablediode · guest_modificationIodine-doped Cu(TCNQ) SURMOF rectification with asymmetric oxidation interpretation.Unmapped
Ref. 462021Title unavailablediode · NDR · humidity_effectHKUST-1 SURMOF negative differential resistance and rectification under high humidity.Unmapped
Ref. 472015Title unavailablethermoelectric · guest_modificationMain SURMOF thermoelectric benchmark in the review: positive Seebeck coefficient and low ZT.research_0450
Ref. 622024Title unavailableelectric_sensor · polymer_dopingPyrrole/polymer-loaded HKUST-1 SURMOF benchmark showing transient conductivity increase and oxidation-state caveat.Unmapped
Ref. 1122020Title unavailableelectric_sensor · chiral_sensor · anchoringNHC-anchored homochiral SURMOF sensor used as evidence for stronger anchoring and enantioselective electrochemical response.Unmapped
Ref. 1282019Title unavailablehetero_ligand · mixed_linkerMixed-linker MTV-SURMOFs used for pKa-orientation relationship and multivariate adsorption example.Unmapped
Ref. 1372019Title unavailablehetero_metal · photoluminescenceHeterometal lanthanide SURMOF example showing emission-colour tuning by layer design.Unmapped
Ref. 1432020Title unavailablememristor · polymer_substratePolymer-stack HKUST-1 SURMOF memristor example showing thickness-dependent leakage and stable switching.Unmapped
Ref. 1762021Title unavailableTENG · biointerface · flexible_deviceLeaf-grown M2L2P SURMOF TENG benchmark and biocompatible irregular-substrate example.Unmapped