Primary studyPeripheral evidenceSensor

Self-Powered Infrared Photodetectors with Ultra-High Speed and Detectivity Based on Amorphous Cu-Based MOF Films

Gao S., Huang Y., Tan J. et al. · ACS Applied Materials and Interfaces · 2023 · 32637-32646

1materials
4samples
3synthesis routes
14measurements
51results
7claims and caveats

Evidence map

Open a family to keep every result attached to its sample, method and conditions.

Author interpretations and caveats

Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.

Application RelevanceSupport assessment: Medium

The flexible PI-based MSM photodetector retains photoresponse after 120 bending cycles, supporting wearable-optoelectronics relevance.

Caveat: Bending retention is read mainly from Figure 5d; no tabulated uncertainty or repeated-device statistics are provided.

p008 · Conclusions · Figure 5d · Linked to 2 structured results

Application RelevanceSupport assessment: High

The p-a-Cu-HHTP/n-Si self-powered photodetector is claimed to have record response time and detectivity among MOF-based photodetectors.

Caveat: Record comparison is against literature values listed by the authors in Table 1, not an independently exhaustive survey.

p006 · Results and Discussion · Table 1 · Linked to 3 structured results

Phase AssignmentSupport assessment: High

p-a-Cu-HHTP is assigned as an amorphous Cu-HHTP MOF film, with broad SAED rings and no crystalline XRD peaks.

Caveat: No crystallographic model or CIF is expected for the amorphous film.

p003 · Results and Discussion · Figure 1f · Linked to 1 structured result

Structure Property LinkSupport assessment: Medium

The authors link amorphous active defect sites and excess HHTP to richer hole density and rapid charge transport.

Caveat: Mechanistic link is inferred from spectroscopy and device behaviour rather than direct defect-density quantification.

p007 · Results and Discussion · Figure 6a,b · Linked to 3 structured results

Synthesis MechanismSupport assessment: High

Electrostatic spinning followed by surface-decoration layer-by-layer Cu/HHTP growth is presented as a simple route to amorphous conductive MOF films.

Caveat: The route is detailed for this Cu-HHTP system; generality to other amorphous MOFs is proposed but not demonstrated here.

p008 · Experimental Section · Figure S3 · Linked to 2 structured results

Transport MechanismSupport assessment: Medium

The film is inferred to be p-type, with holes as transport carriers, because O/Cu exceeds the standard stoichiometric ratio and dark p-a-Cu-HHTP/n-Si I-V behaviour is diode-like.

Caveat: The paper does not report direct Hall, Seebeck, carrier density, or mobility measurements.

p007 · Results and Discussion · Figure 6 · Linked to 2 structured results

Transport MechanismSupport assessment: Medium

Temperature-dependent conductivity is described by extended-state, tailed-state, and short-range hopping components, with extended-state conduction active around room temperature.

Caveat: Only fitted activation energies and normalised plots are reported; raw conductivity data are not tabulated.

p004 · Results and Discussion · Figure 3d · Linked to 4 structured results

Material identities

Names and aliases are kept exactly within the paper’s own identity model.

MaterialCompositionStructure contextSource
p-type amorphous Cu-HHTP film (p-a-Cu-HHTP)Browse family: Cu₃(HHTP)₂ / Cu–HHTPCu-HHTP; nonstoichiometric film with O/Cu about 5/1 by XPSCu2+ coordinated by HHTP; Cu 2p XPS also deconvoluted into Cu(II) and Cu(I) components · 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP)2D · PristineAmorphous Cu-HHTP MOF film with graphite-like 2D layered local structure; broad SAED rings and no crystalline XRD peaks.p001 · Abstract

Sample register

Sample form, processing state and composition status define the context for measurements.

Show 4 sample records
SampleForm and roleProcessing and geometrySource
p-a-Cu-HHTP MOF film on electrospun nanofibresresearch_0851__mat__mat_p_a_cu_hhtpThin Film · Pristine Control · Pristine FrameworkElectrostatic-spun nanofibre surface decorated by layer-by-layer Cu/HHTP growth; dried under nitrogenElectrospun PAN/Cu(Ac)2-derived nanofibres on n-Si, PI, or glass depending on testp002 · Introduction
p-a-Cu-HHTP/glass optical filmresearch_0851__mat__mat_p_a_cu_hhtpThin Film · Pristine Control · Pristine FrameworkTransparent film prepared for UV-vis transmittance and Tauc analysisglassp004 · Results and Discussion · Figure 3a,b
p-a-Cu-HHTP/n-Si self-powered photodetectorresearch_0851__mat__mat_p_a_cu_hhtpElectrode · Composite Sample · Compositep-a-Cu-HHTP/n-Si heterojunction with Ag electrodes on p-a-Cu-HHTP and n-Sin-type Sip005 · Results and Discussion · Figure 4a
flexible p-a-Cu-HHTP MSM photodetector on PIresearch_0851__mat__mat_p_a_cu_hhtpElectrode · Composite Sample · Compositep-a-Cu-HHTP film on PI with Ag electrodes forming an MSM photodetectorpolyimide (PI)p006 · Results and Discussion · Figure 5a