Wu G.-D., Zhou H.-L., Fu Z.-H. et al. · Angewandte Chemie - International Edition · 2021 · 9931-9935
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.
The Cu-TCPP thin-film H+-FET shows proton mobility of about 9.5 x 10^-3 cm2 V^-1 s^-1 and on/off ratio of about 4.1, reported by the authors as the highest among reported H+-FETs at the time.
Caveat: Leaderboard claim depends on the authors' literature comparison and the 2021 state of the field; not independently updated here.
4 · Conclusion · Linked to 3 structured results
Reassembling ultrathin Cu-TCPP nanosheets produces two-dimensional interstitial hydrophobic nanochannels with hydrophilic Cu sites that mimic biological proton channels.
Caveat: The nanoscale channel assignment is inferred from oriented film structure and sorption/contact-angle behaviour rather than direct pore imaging.
1 · Abstract · Linked to 4 structured results
Hydrophobic nanochannels help the Cu-TCPP film retain stability in water while still adsorbing water through hydrophilic sites.
Caveat: Longer-term or cycling stability beyond 40 days is not reported.
2 · Main text · Figure 2c,d; Figure S3; Figure S4 · Linked to 3 structured results
DFT suggests water molecules in interstitial channels form a hydrogen-bond network that enables a low-barrier Grotthuss-type proton-transfer pathway.
Caveat: The calculation uses a simplified 8H2O@CuTCPP fragment model rather than the full dynamic hydrated device.
3 · Main text · Figure 2i; Figure S5; Figure S6 · Linked to 3 structured results
Gate bias physically and reversibly modulates proton concentration in the MOF active layer by electric-field effect, with negative gate voltage increasing proton injection from PdHx contacts.
Caveat: Mechanistic explanation is based on device behaviour and schematic interpretation rather than direct in situ proton concentration imaging.
3 · Main text · Figure 3d · Linked to 3 structured results
The modulated current in the Cu-TCPP H+-FET is attributed to protonic current, supported by humidity/H2 dependence, sweep-rate dependence, low vacuum electronic conductivity, and no gate response without H2.
Caveat: The device current is externally read as electronic current coupled to proton transfer at contacts; direct isotope or species-resolved transport is not reported in the supplied text.
4 · Main text · Figure S12 · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| 8H2O@CuTCPP computational model | 8H2O@CuTCPP model fragmentsCuTCPP molecular fragments retaining Cu paddle-wheel/hydrophilic points · CuTCPP porphyrin-carboxylate fragments | unknown · Model SystemDFT model consisting of eight water molecules sandwiched by two molecular fragments of CuTCPP to simulate proton transfer through hydrated interlayer channels. | 3 · Main text · Figure S5 |
| Cu-TCPP | Cu-TCPP; copper tetrakis(4-carboxyphenyl)porphyrin frameworkCu-centred porphyrin rings connected by Cu2(COO)4 paddle-wheel structures; hydrophilic coordinatively unsaturated Cu sites · H2TCPP / TCPP, 5,10,15,20-tetrakis(4-carboxyphenyl)porphyrin; aromatic porphyrin ligand provides hydrophobic regions | 2D · PristineReticular layered Cu-TCPP framework in the ab plane with neighbouring layers stacked along the c axis; reconstructed nanosheets form oriented thin films with two-dimensional interstitial nanochannels. | 2 · Main text · Figure 1a |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| 8H2O@CuTCPP DFT proton-transfer modelresearch_0356__mat__mat_8h2o_cu_tcpp_model | Model · Model System · Model | Designed computational model for proton transfer consisting of eight waters between CuTCPP fragments. | 4 · Supporting Information · Figure S5 |
| Cu-TCPP thin-film H+-FET deviceresearch_0356__mat__mat_cu_tcpp | Electrode · Target Sample · Composite | Cu-TCPP thin film deposited on SiO2/Si+ substrate with Pd/PdHx source and drain electrodes for protonic field-effect transistor testing.SiO2/Si+ substrate with heavily doped Si gate and pre-prepared 80-nm Pd electrodes · 50 nm Cu-TCPP active layer; 80 nm Pd electrodes | 3 · Main text · Figure 2e,f; Figure 3a |
| Crystalline ultrathin Cu-TCPP nanosheetsresearch_0356__mat__mat_cu_tcpp | Nanosheet · Target Sample · Pristine Framework | Solution-reaction Cu-TCPP nanosheets used for layer-by-layer reconstruction into thin films.4-5 nm nanosheets; approximately 5.0 nm used for film thickness control | 2 · Main text · Figure 1b,c |
| Cu-TCPP thin film with 10 layer-by-layer deposition cyclesresearch_0356__mat__mat_cu_tcpp | Thin Film · Target Sample · Pristine Framework | Reassembled from ultrathin Cu-TCPP nanosheets by layer-by-layer modular assembly; nanosheets lie parallel to the substrate with the ab plane.Substrate used for film characterisation and device fabrication; SiO2/Si+ substrate stated for H+-FET devices · approximately 50 nm after 10 deposition cycles | 2 · Main text · Figure S1; Figure 2a,b |