Saha S., Ananthram K.S., Hassan N. et al. · Nano Letters · 2023 · 9326-9332
Open a family to keep every result attached to its sample, method and conditions.
Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.
AgNP decoration alone does not guarantee metallic transport in 2D MOFs: AgNPs@Cu-TCPP shows only a small conductance increase and semiconducting behaviour.
Caveat: Cu-TCPP data are SI-supported contextual controls rather than the paper's primary target system.
5 · Results · Figure S25 · Linked to 3 structured results
AgNP decoration increases CuTCNQ conductance but retains semiconducting temperature dependence, contrasting with AgNPs@Cu3(HHTP)2.
Caveat: The CuTCNQ sample is a 3D MOF comparator rather than the primary 2D conductive-MOF target.
3 · Electrical transport · Figure 3 · Linked to 4 structured results
DFT attributes metallic transport in AgNPs@Cu3(HHTP)2 to stronger Cu3(HHTP)2/Ag interfacial charge transfer and DOS dispersion that creates continuous states near EF.
Caveat: Interface models approximate AgNP surfaces; they are not atom-by-atom replicas of the experimental nanoparticles.
4-5 · DFT analysis · Figure 5 and Tables S1-S4 · Linked to 4 structured results
The AgNPs@Cu3(HHTP)2 LbL route likely forms Ag(0) nanoparticles because oxidation of Cu(I) to Cu(II) within Cu3(HHTP)2 facilitates Ag(I) reduction.
Caveat: Mechanistic wording is cautious in the paper ('possibly facilitated').
4 · Spectroscopic analysis · Figure 4 · Linked to 4 structured results
A threshold AgNP coverage is needed in AgNPs@Cu3(HHTP)2 to trigger the large conductance enhancement and metallic charge transport.
Caveat: Threshold is discussed qualitatively; individual conductance values for each AgOAc dipping time are not tabulated.
3 · Electrical transport · Figure S14 · Linked to 4 structured results
AgNP decoration transforms Cu3(HHTP)2 thin films from semiconducting temperature-dependent transport to metallic conduction, with about 10^5 conductance enhancement at 300 K.
Caveat: Metallic conduction is inferred from thermally deactivated transport in thin-film devices rather than a direct band-structure measurement.
5 · Summary · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| AgNPs@Cu3(HHTP)2Browse family: Cu₃(HHTP)₂ / Cu–HHTP | Ag nanoparticles decorated Cu3(HHTP)2Cu nodes in Cu3(HHTP)2 plus zerovalent Ag nanoparticles · HHTP | 2D · CompositeComposite thin film of microcrystallite Cu3(HHTP)2 rods decorated with Ag nanoparticles; Cu3(HHTP)2 crystallinity retained by XRD and Ag fcc nanoparticle lattice observed by HRTEM. | 2 · Results · Figure 1 |
| AgNPs@Cu-TCPP | Ag nanoparticles decorated Cu-TCPPCu paddle-wheel nodes plus Ag nanoparticles · TCPP | 2D · CompositeAg nanoparticle decorated Cu-TCPP thin film characterised by TEM, elemental mapping, GIXRD, FTIR, Raman and I-V in SI Figure S25. | S29 · Figure caption · Figure S25 |
| AgNPs@CuTCNQ | Ag nanoparticles decorated CuTCNQCu(I) in CuTCNQ plus major Ag(0) and minor Ag(I) species · TCNQ | 3D · CompositePostsynthetically AgNP-modified CuTCNQ thin film; XRD confirms CuTCNQ pattern and TEM/HRTEM show Ag nanoparticles. | 2 · Results |
| Cu3(HHTP)2Browse family: Cu₃(HHTP)₂ / Cu–HHTP | Cu3(C18H6O6)2 / Cu3(HHTP)2Cu nodes; mixed Cu(II)/minor Cu(I) detected by XPS · HHTP = 2,3,6,7,10,11-hexahydroxytriphenylene | 2D · PristineSemiconducting 2D pi-conjugated MOF thin film with characteristic out-of-plane XRD peaks at about 9.8 and 12.9 degrees 2theta assigned to (200) and (210) planes. | 1 · Abstract/Introduction |
| Cu-TCPP | Cu-TCPPCu paddle-wheel nodes inferred from FTIR coordination bands · TCPP = tetrakis(4-carboxyphenyl)porphyrin | 2D · PristineElectrically insulating 2D MOF thin film used to test generality of AgNP decoration. | 5 · Results · Figure S25 |
| CuTCNQ | CuTCNQCu(I) coordination polymer/MOF nodes · TCNQ = 7,7,8,8-tetracyanoquinodimethane | 3D · PristinePreviously reported semiconducting 3D MOF thin film used as a contrasting pristine control. | 2 · Results |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| AgNPs@Cu3(HHTP)2 thin film, 10 min AgOAc dippingresearch_0144__mat__mat_agnps_cu3_hhtp2 | Thin Film · Target Sample · Composite | AgOAc dipping time varied to 10 min per LbL cycleFunctionalised substrate, likely Au-coated Si wafer for transport series · not reported | S18 · Figure caption · Figure S14 |
| AgNPs@Cu3(HHTP)2 thin film, 20 min AgOAc dippingresearch_0144__mat__mat_agnps_cu3_hhtp2 | Thin Film · Target Sample · Composite | AgOAc dipping time varied to 20 min per LbL cycleFunctionalised substrate, likely Au-coated Si wafer for transport series · not reported | S18 · Figure caption · Figure S14 |
| AgNPs@Cu3(HHTP)2 thin film, 5 min AgOAc dippingresearch_0144__mat__mat_agnps_cu3_hhtp2 | Thin Film · Target Sample · Composite | AgOAc dipping time varied to 5 min per LbL cycleFunctionalised substrate, likely Au-coated Si wafer for transport series · not reported | S18 · Figure caption · Figure S14 |
| AgNPs@Cu3(HHTP)2 thin filmresearch_0144__mat__mat_agnps_cu3_hhtp2 | Thin Film · Target Sample · Composite | 20-cycle LbL Cu/AgOAc/HHTP sequence with AgOAc dipping at 298 K for 15 min in the standard target filmFunctionalised Au-coated Si wafer or FTO coated glass substrate · approximately ~750 nm | S2 · Methods |
| AgNPs@Cu-TCPP thin filmresearch_0144__mat__mat_agnps_cu_tcpp | Thin Film · Composite Sample · Composite | 20-cycle Cu/AgOAc/TCPP LbL sequence with 30 min AgOAc step at 298 KFunctionalised Au substrate · not reported | S3 · Methods |
| AgNPs@CuTCNQ thin filmresearch_0144__mat__mat_agnps_cutcnq | Thin Film · Composite Sample · Composite | Postsynthetically modified by two AgNO3/TCNQ LbL cyclesFunctionalised substrate bearing pre-fabricated CuTCNQ film · not reported | S3 · Methods |
| Pristine Cu3(HHTP)2 thin filmresearch_0144__mat__mat_cu3_hhtp2 | Thin Film · Pristine Control · Pristine Framework | 20-cycle LbL thin film after ethanol washing and N2 dryingFunctionalised Au-coated Si wafer or FTO coated glass substrate · approximately ~900 nm | S2 · Methods |
| Pristine Cu-TCPP thin filmresearch_0144__mat__mat_cu_tcpp | Thin Film · Pristine Control · Pristine Framework | 20-cycle Cu(OAc)2/TCPP LbL thin filmFunctionalised Au substrate · not reported | S3 · Methods |
| Pristine CuTCNQ thin filmresearch_0144__mat__mat_cutcnq | Thin Film · Pristine Control · Pristine Framework | 20-cycle LbL thin film after ethanol washing and N2 dryingFunctionalised substrate · approximately ~600 nm | S2-S3 · Methods |
| Pristine Cu3(HHTP)2 DFT modelresearch_0144__mat__mat_cu3_hhtp2 | Model · Model System · Model | Experimentally obtained structure model energy optimised in VASP | S3-S4 · Computational details |
| Cu3(HHTP)2/Ag interface DFT modelresearch_0144__mat__mat_agnps_cu3_hhtp2 | Model · Model System · Model | Cu3(HHTP)2 stacked along [001] crystal direction of the Ag surface and energy optimisedAg surface model | S3-S4 · Computational details |
| Pristine CuTCNQ DFT modelresearch_0144__mat__mat_cutcnq | Model · Model System · Model | Experimentally obtained structure model energy optimised in VASP | S3-S4 · Computational details |
| CuTCNQ/Ag interface DFT modelresearch_0144__mat__mat_agnps_cutcnq | Model · Model System · Model | CuTCNQ stacked along [001] crystal direction of the Ag surface and energy optimisedAg surface model | S3-S4 · Computational details |