Zheng R., Fu Z.-H., Deng W.-H. et al. · Angewandte Chemie - International Edition · 2022 · e202212797
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 electrical and sensing measurements provide a route to optimise Cu3(HHTP)2 film thickness and growth cycles for applications by balancing charge transport and mass transport.
Caveat: The paper is primarily mechanistic; no device optimisation beyond simple chemiresistive gas sensing is reported.
p005 · Conclusion · Linked to 4 structured results
FT-IR and conductivity controls argue against crystalline HHTP ligand films and support effective coordination of HHTP with Cu ions in Cu3(HHTP)2.
Caveat: Conductivity comparison values are read from a plotted SI bar chart rather than a table.
p002 · Results and Discussion · Figures S2-S3 · Linked to 4 structured results
Spray LBL-LPE produces Cu3(HHTP)2 thin films whose in-plane XRD peaks are hk0 and out-of-plane peak is 00l, assigning high in-plane crystallinity and c-axis-oriented epitaxial growth.
Caveat: The (002) out-of-plane peak is weaker and broader than hk0 peaks, so long-range order along c is relatively poorer.
p002 · Results and Discussion · Figure S1 · Linked to 2 structured results
The bottom part of Cu3(HHTP)2-30C has preferred in-plane ab orientation and fused mesocrystal-like structure, while the rougher top is polycrystalline.
Caveat: TEM uses peeled slices and compares thicker/thinner slice regions, so spatial assignment is indirect but explicitly argued by the authors.
p004 · Results and Discussion · Figure 3d-f; Figures S11-S12 · Linked to 2 structured results
Cu3(HHTP)2-xC grows by in-plane self-limiting nucleation/grain growth and out-of-plane epitaxial growth; surface grains remain below about 40 nm while thickness increases roughly 2 nm per cycle.
Caveat: Mechanism is inferred from microscopy, DC/AC transport and sensing trends rather than direct in situ observation.
p003 · Results and Discussion · Figure 1i; Figure 2 · Linked to 4 structured results
DC conductivity, AC impedance and gas responses indicate grain boundaries and defects are gradually repaired during the first about 10 growth cycles, after which film quality and charge transport largely saturate.
Caveat: EIS resistance components are model-fitted; individual fitted R values are shown graphically and were not tabulated in the supplied text.
p004 · Results and Discussion · Figure 3 · Linked to 5 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Cu3(HHTP)2 conductive metal-organic frameworkBrowse family: Cu₃(HHTP)₂ / Cu–HHTP | Cu3(HHTP)2; growth-cycle films denoted Cu3(HHTP)2-xCCu ions derived from copper acetate · HHTP = 2,3,6,7,10,11-hexahydrotriphenylene / 2,3,6,7,10,11-hexahydroxytriphenylene | 2D · PristineExtended two-dimensional hexagonal pi-conjugated layers assembled in slipped-parallel ab packing to form a porous honeycomb structure; thin films assigned as c-axis oriented with in-plane hk0 diffraction and out-of-plane 00l diffraction. | p002 · Results and Discussion · Scheme 1; Figure S1 |
| functionalised sapphire substrate blank | sapphire substrate with hydroxyl functionalisation and optional Cr/Au electrodes | unknown · Model SystemBlank hydroxyl-functionalised substrate used as morphology/electrical control. | p003 · 1.2 Preparation of functionalized substrates · Figure 2d |
| HHTP ligand control | HHTPHHTP ligand | 0D · Model SystemMolecular ligand powder/pellet control, not a MOF framework. | p003 · 1.1 Materials and General Methods |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| functionalised substrate blankresearch_0263__mat__m_functionalised_substrate_blank | Electrode · Pristine Control · Model | Cleaned/functionalised substrate before Cu3(HHTP)2 growth.sapphire substrate, hydroxyl-functionalised; Cr/Au electrodes for blank I-V control · not applicable | p003 · 1.2 Preparation of functionalized substrates · Figure S6a |
| Cu3(HHTP)2 thin film, 200 nm, XRD specimenresearch_0263__mat__m_cu_hhtp | Thin Film · Target Sample · Pristine Framework | Spray LBL-LPE film; XRD specimens were immersed in 0.01 mM HHTP ligand at 85 deg C for 20 h to improve crystallinity.hydroxyl-functionalised substrate, exact substrate for the 200 nm XRD specimen not separately specified · 200 nm | p006 · 2. Figures · Figure S1 |
| Cu3(HHTP)2-20C thin filmresearch_0263__mat__m_cu_hhtp | Thin Film · Target Sample · Pristine Framework | 20-cycle as-grown LBL-LPE film; used in Figure 2 SEM cross-section, S3 conductivity comparison and S5/S6 characterisation.sapphire substrate with Cr/Au electrodes for electrical/sensor tests; other substrates for AFM/SEM as indicated · Figure S5 visual labels average about 38.6 nm for 20C; main text reports about 2 nm per cycle. | p003 · Results and Discussion · Figure 2c |
| Cu3(HHTP)2-30C peeled-film TEM sliceresearch_0263__mat__m_cu_hhtp | Thin Film · Target Sample · Pristine Framework | Peel-off slices of a 30-cycle film; thicker and thinner regions analysed by HR-TEM/FFT.peeled off from original substrate for TEM analysis · 30 growth cycles; exact total thickness not reported in text, S7 includes 30C cross-section. | p004 · Results and Discussion · Figure 3d-f; Figures S11-S12 |
| Cu3(HHTP)2-xC spray LBL-LPE thin-film growth-cycle series, x = 1-60research_0263__mat__m_cu_hhtp | Thin Film · Target Sample · Pristine Framework | As-grown spray-based layer-by-layer liquid-phase epitaxy films, deep-blue homogeneous films after repeated Cu acetate/HHTP spray cycles.hydroxyl-functionalised sapphire and Si/SiO2 substrates; sapphire devices with Cr/Au electrodes where electrical/sensing measurements were made · x = 1-60 growth cycles; thickness increases approximately 2 nm per cycle; S5 labels 1C to 20C thicknesses from about 2 to 39 nm. | p002 · Results and Discussion · Figure 1 |
| HHTP powder pelletresearch_0263__mat__m_hhtp_ligand_control | Pellet · Pristine Control · Unknown | Commercial HHTP ligand pressed/formed as powder pellet for two-contact conductivity comparison; pellet preparation details not otherwise described. | p004 · 1.4 Evaluation of Electronic Conductivity · Figure S3 |