Primary studyCore evidenceThin Film Device

Volatolomics in Fritillarias and Their Identification by Orientation Controlled cMOF Thin Film Chemiresistors

Cao L.-A., Li Y.-Q., Huo Y.-F. et al. · Chinese Journal of Chemistry · 2025 · 371-377

3materials
7samples
4synthesis routes
11measurements
49results
5claims 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

A single Cu-HHTP[001] chemiresistor can distinguish FCB from FUB, FTB and BP with 97.2% LDA classification accuracy.

Caveat: LDA calculation method is reported in the SI; raw classification input table is not supplied. humidity response is a caveat.

p004 · Results and Discussion · Figure 4a · Linked to 5 structured results

CaveatSupport assessment: High

Humidity substantially decreases the Cu-HHTP[001] sensor response, so anti-humidity interference remains an unresolved limitation.

Caveat: Quantitative humidity response is shown graphically in SI Figure S15; no table values are supplied.

p004 · Results and Discussion · Figure S15 · Linked to 1 structured result

Phase AssignmentSupport assessment: Medium

The films are assigned as Cu3(HHTP)2 based on UV-vis growth behaviour, SEM/AFM morphology, TEM/SAED, FT-IR coordination shifts and XPS elemental detection.

Caveat: Several supporting spectra/profiles are available as SI figures, but text gives selected numeric values only.

p002-p003 · Results and Discussion · Figure 2; Figures S1, S4-S6 · Linked to 5 structured results

Structure Property LinkSupport assessment: High

Orientation-controlled Cu3(HHTP)2 thin films show anisotropic sensing: Cu-HHTP[001] has a higher FCB response and faster response/recovery than Cu-HHTP[100].

Caveat: Absolute baseline current/conductivity values are not reported; absolute conductivity values are not reported.

p003-p004 · Results and Discussion · Figure 3a-b · Linked to 6 structured results

Transport MechanismSupport assessment: Medium

FCB volatile components donate electrons to p-type Cu3(HHTP)2, shifting the Fermi level upward and increasing resistance.

Caveat: The authors state the exact mechanism is still to be revealed; UPS supports but does not fully prove the mechanism.

p005 · Results and Discussion · Figure 4b · Linked to 2 structured results

Material identities

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

MaterialCompositionStructure contextSource
Cu-HHTP[001] oriented Cu3(HHTP)2 thin filmBrowse family: Cu₃(HHTP)₂ / Cu–HHTPCu3(HHTP)2Cu2+ ions coordinated to HHTP ligands · HHTP2D · PristineAnisotropic Cu3(HHTP)2 thin film grown along the [001] orientation by layer-by-layer immersion in ethanolic Cu(OAc)2 and HHTP solutions.p002 · Results and Discussion · Figure 1
Cu-HHTP[100] oriented Cu3(HHTP)2 thin filmBrowse family: Cu₃(HHTP)₂ / Cu–HHTPCu3(HHTP)2Cu2+ ions coordinated to HHTP ligands · HHTP2D · PristineAnisotropic Cu3(HHTP)2 thin film grown along the [100] orientation by layer-by-layer immersion in aqueous Cu(OAc)2 and HHTP solutions.p002 · Results and Discussion · Figure 1
Cu3(HHTP)2 conductive metal-organic frameworkBrowse family: Cu₃(HHTP)₂ / Cu–HHTPCu3(HHTP)2; HHTP = 2,3,6,7,10,11-hexahydroxytriphenyleneCu2+ ions coordinated to HHTP ligands · 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP)2D · PristineHexagonal 2D honeycomb layered conductive MOF; HR-TEM lattice fringe assigned to the [100] crystal plane.p003 · Results and Discussion · Figure 2g-i

Sample register

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

Show 7 sample records
SampleForm and roleProcessing and geometrySource
Cu-HHTP[001]-20C thin filmresearch_0759__mat__cu_hhtp_001Thin Film · Target Sample · Pristine Framework20 growth-cycle [001]-oriented Cu3(HHTP)2 film selected for characterisation and gas-sensing tests.not fully specified in main text · 70 nmp002 · Results and Discussion · Figure 2c,e; Figure S1
Cu-HHTP[001]-10C/20C/30C/40C film seriesresearch_0759__mat__cu_hhtp_001Thin Film · Target Sample · Pristine FrameworkLayer-by-layer grown [001]-oriented pristine Cu3(HHTP)2 films.quartz glass for UV-vis; alumina substrate for devices where fabricated as chemiresistors · controlled by growth cycles; 10C, 20C, 30C, 40Cp002 · Results and Discussion · Figure 2a
FCB-related volatolomics adsorbed Cu-HHTP[001] filmresearch_0759__mat__cu_hhtp_001Thin Film · Target Sample · Guest LoadedCu-HHTP[001] film after adsorption of FCB-related volatile components for UPS comparison.not specified for UPS specimen · active film about 70 nm for the corresponding 20C filmp004-p005 · Results and Discussion · Figure 4b
Cu-HHTP[001] chemiresistor deviceresearch_0759__mat__cu_hhtp_001Electrode · Target Sample · CompositeCu-HHTP[001] film on alumina with silver wires fixed by conductive silver paste at both electrode ends.alumina substrate, 13.4 mm x 7 mm x 0.635 mm · active film about 70 nmp005 · Chemiresistive gas sensing measurements · Figure S13
Cu-HHTP[100]-20C thin filmresearch_0759__mat__cu_hhtp_100Thin Film · Target Sample · Pristine Framework20 growth-cycle [100]-oriented Cu3(HHTP)2 film selected for characterisation and gas-sensing tests.not fully specified in main text · 110 nmp002 · Results and Discussion · Figure 2d,f; Figure S1
Cu-HHTP[100]-10C/20C/30C/40C film seriesresearch_0759__mat__cu_hhtp_100Thin Film · Target Sample · Pristine FrameworkLayer-by-layer grown [100]-oriented pristine Cu3(HHTP)2 films.quartz glass for UV-vis; alumina substrate for devices where fabricated as chemiresistors · controlled by growth cycles; 10C, 20C, 30C, 40Cp002 · Results and Discussion · Figure 2b
Cu-HHTP[100] chemiresistor deviceresearch_0759__mat__cu_hhtp_100Electrode · Target Sample · CompositeCu-HHTP[100] film on alumina with silver wires fixed by conductive silver paste at both electrode ends.alumina substrate, 13.4 mm x 7 mm x 0.635 mm · active film about 110 nmp005 · Chemiresistive gas sensing measurements · Figure S13