Primary studyCore evidenceThin Film Device

Field effect transistor based on proton conductive metal organic framework (CuBTC)

Bodkhe G.A., Deshmukh M.A., Patil H.K. et al. · Journal of Physics D: Applied Physics · 2019 · 335105

2materials
4samples
3synthesis routes
10measurements
46results
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: High

The work demonstrates a proton-conductive MOF FET with gate-voltage control, drain current modulation, on/off ratio and threshold voltage.

Caveat: Only Im@CuBTC device data are shown; no pristine CuBTC FET device control is reported.

rendered page 9 / article p. 8 · 5. Conclusions · Figure 11 · Linked to 4 structured results

Phase AssignmentSupport assessment: High

Imidazole loading decreases XRD intensity/crystallinity but does not substantially change the CuBTC crystal structure or crystallite size.

Caveat: Crystallite size is reported as an approximate value; no raw XRD fitting table is provided.

rendered page 7 / article p. 6 · 3. Results and discussion · Figure 2 · Linked to 3 structured results

Structure Property LinkSupport assessment: High

Adsorption of imidazole molecules in CuBTC increases the conductivity of otherwise insulating CuBTC and gives proton conductivity up to 1.04 x 10^-4 S cm^-1 at 70 C under anhydrous conditions.

Caveat: The paper does not report a numeric pristine CuBTC conductivity control in the main text.

rendered page 9 / article p. 8 · 5. Conclusions · Figure 9 · Linked to 2 structured results

Structure Property LinkSupport assessment: High

Imidazole molecules were successfully inserted/adsorbed inside the CuBTC pores, producing Im@CuBTC.

Caveat: No elemental percentages or loading stoichiometry are reported in the main article.

rendered page 7 / article p. 6 · 3. Results and discussion · Figures 1, 4, 5, 6 and 7 · Linked to 8 structured results

Transport MechanismSupport assessment: Medium

The Im@CuBTC FET is ambipolar; authors attribute this to proton/anion separation and charge accumulation at electrodes under the source-drain electric field.

Caveat: Mechanistic explanation is inferential and based on device characteristics rather than direct operando ion mapping.

rendered page 9 / article p. 8 · 4. FET performance · Figure 11 · Linked to 4 structured results

Material identities

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

MaterialCompositionStructure contextSource
CuBTC (HKUST-1)Browse family: HKUST-1 / Cu₃(BTC)₂Cu3(BTC)2 framework; article names copper benzene tricarboxylate (CuBTC)Cu(II) paddlewheel/copper metal centres · benzene-1,3,5-tricarboxylate (BTC)3D · PristineHKUST-1/CuBTC; XRD matched ICDD PDF 00-065-1028 and literature HKUST-1.rendered page 3 / article p. 2 · Introduction
Im@CuBTCimidazole-loaded CuBTCCu(II) nodes from CuBTC · benzene-1,3,5-tricarboxylate framework linker plus imidazole guest molecules3D · CompositeGuest-loaded CuBTC; XRD peak positions retained with lower intensity/crystallinity after imidazole adsorption.rendered page 4 / article p. 3 · 2.3. Synthesis of Im@CuBTC

Sample register

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

Show 4 sample records
SampleForm and roleProcessing and geometrySource
as-synthesised/activated CuBTC powderresearch_0162__mat__mat_cubtcPowder · Pristine Control · Pristine FrameworkBlue CuBTC crystals washed, dried at room temperature, activated at 120 C and stored in a desiccator.rendered pages 3-4 / article pp. 2-3 · 2.2. Synthesis of CuBTC
Im@CuBTC drop-cast FET channel on Si/SiO2 with Cr/Au electrodesresearch_0162__mat__mat_im_cubtcThin Film · Target Sample · Guest LoadedIm@CuBTC drop-cast between two gold electrodes on photolithographically patterned Si/SiO2 substrate and wire-bonded to PCB.p-type Si wafer coated with 100 nm SiO2; Cr/Au source-drain electrodes · approx. 50 um Im@CuBTC film; SiO2 100 nm; Cr 20 nm; Au 180 nmrendered page 4 / article p. 3 · 2.4. Substrate preparation and development of FET device · Figure 10
Im@CuBTC pressed pellet for AC impedanceresearch_0162__mat__mat_im_cubtcPellet · Target Sample · Guest LoadedPowder pressed in a KBr press into pellets for AC impedance and proton-conductivity measurement.0.2 mm thickness; 0.4 mm diameterrendered page 6 / article p. 5 · 2.5. Material characterization
Im@CuBTC powder/crystalsresearch_0162__mat__mat_im_cubtcPowder · Target Sample · Guest LoadedActivated CuBTC immersed in 1 M imidazole solution in methanol, then dried and stored.rendered page 4 / article p. 3 · 2.3. Synthesis of Im@CuBTC