Primary studyCore evidenceSynthesis Structure

Electrically regulating nonlinear optical limiting of metal-organic framework film

Ma Z.-Z., Li Q.-H., Wang Z. et al. · Nature Communications · 2022 · 6347

2materials
9samples
4synthesis routes
11measurements
52results
6claims 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

Applying 0-10 V across ITO-MOF-ITO devices increases the nonlinear absorption coefficient beta for both Cu-HHTP orientations, with a much larger increase for [001].

Caveat: Authors state high voltage can destroy the MOFs, limiting the studied range to 0-10 V.

5 · The third-order NLO test · Fig. 5d,e · Linked to 14 structured results

Phase AssignmentSupport assessment: High

Cu-HHTP films with [001] and [100] orientations were successfully prepared on substrates, as supported by out-of-plane and in-plane XRD peak assignments.

Caveat: No CIF file was supplied in this extraction batch; assignment relies on reported XRD comparisons to simulated Cu-HHTP.

2 · Characterization · Fig. 2b · Linked to 4 structured results

Structure Property LinkSupport assessment: High

The [001] orientation gives stronger nonlinear optical limiting than the [100] orientation at 0 V.

Caveat: Film thickness and linear transmittance differ between samples, so direct optical comparison may include morphology/thickness effects in addition to orientation.

4 · The third-order NLO test · Fig. 4 · Linked to 6 structured results

Structure Property LinkSupport assessment: Medium

The applied-voltage model predicts a much larger gamma increase for c-axis voltage than for ab-plane voltage, consistent with the stronger experimental voltage response of [001]-oriented films.

Caveat: Based on simplified Cu3L2 model; not a directly measured gamma under voltage.

6 · The third-order NLO test · Fig. 5f · Linked to 5 structured results

Transport MechanismSupport assessment: Medium

DFT/TDDFT attributes the stronger [001] NLO response to more diverse electron-transfer pathways, including both intralayer and interlayer transfer, whereas [100] is dominated by local excitation and intralayer transfer.

Caveat: Mechanistic claim is computational and model-dependent.

4 · The third-order NLO test · Supplementary Table 2 · Linked to 6 structured results

Transport MechanismSupport assessment: High

The [001]-oriented Cu-HHTP film has better charge transport than the [100]-oriented film, shown by higher I-V response, lower EIS interfacial resistance and higher photocurrent response.

Caveat: Absolute conductivity was not reported; I-V currents are approximate visual reads from the figure.

3 · Characterization · Fig. 3a,b; Supplementary Fig. 7 · Linked to 5 structured results

Material identities

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

MaterialCompositionStructure contextSource
Cu-HHTPBrowse family: Cu₃(HHTP)₂ / Cu–HHTPCu-HHTP; HHTP = 2,3,6,7,10,11-hexahydroxytriphenyleneCu2+ / copper catecholate nodes · 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP)2D · PristineGraphene-like honeycomb porous layered Cu-HHTP; oriented [001] and [100] thin films assigned by out-of-plane and in-plane XRD.1-3 · Introduction; Characterization · Fig. 2
Cu-HHTP computational modelsBrowse family: Cu₃(HHTP)₂ / Cu–HHTPCu-HHTP model systems; Cu3L2 voltage modelCu centres · HHTP-derived ligand fragments2D · Model SystemDFT models for Cu-HHTP along [001] and [100] orientations plus Cu3L2 applied-voltage model.4, 6, 8 · The third-order NLO test; DFT calculations · Fig. 4e-g; Fig. 5f; Supplementary Figs. 10-14

Sample register

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

Show 9 sample records
SampleForm and roleProcessing and geometrySource
Cu-HHTP[001] filmresearch_0312__mat__mat_cu_hhtpThin Film · Target Sample · Pristine FrameworkLPE LBL film with [001] orientation; 10 growth cycles; ethanolic solutions; 40 deg Cfunctionalized ITO glass · about 60 nm2-3, 7 · Preparation; Methods · Fig. 1; Fig. 2d
ITO-Cu-HHTP[001]-ITO sandwich deviceresearch_0312__mat__mat_cu_hhtpElectrode · Target Sample · CompositeCu-HHTP[001] film on ITO with another ITO glass attached for voltage-dependent Z-scan testing.ITO conductive glass / Cu-HHTP[001] / ITO glass · MOF film about 60 nm5 · The third-order NLO test · Fig. 5a
Cu-HHTP[100] filmresearch_0312__mat__mat_cu_hhtpThin Film · Target Sample · Pristine FrameworkLPE LBL film with [100] orientation; 15 growth cycles; deionized-water solution with NMP additive; 70 deg Cfunctionalized ITO glass · about 120 nm2-3, 7 · Preparation; Methods · Fig. 1; Supplementary Fig. 1c
ITO-Cu-HHTP[100]-ITO sandwich deviceresearch_0312__mat__mat_cu_hhtpElectrode · Target Sample · CompositeCu-HHTP[100] film on ITO with another ITO glass attached for voltage-dependent Z-scan testing.ITO conductive glass / Cu-HHTP[100] / ITO glass · MOF film about 120 nm5 · The third-order NLO test · Fig. 5a
Cu-HHTP powderresearch_0312__mat__mat_cu_hhtpPowder · Pristine Control · Pristine FrameworkSolvothermal/hydrothermal powder used for XRD, IR, Raman, TEM, and NLO comparison.3, 7 · Characterization; Fabrication of Cu-HHTP Powder · Fig. 2b; Supplementary Fig. 2
Bare ITO glass substrateresearch_0312__mat__mat_cu_hhtpElectrode · Pristine Control · CompositeBare substrate reference for Z-scan optical limiting tests.ITO glass4-5 · The third-order NLO test · Fig. 4a-c
Cu3L2 applied-voltage modelresearch_0312__mat__mat_cu_hhtp_modelModel · Model System · ModelSimple model for applied-voltage theoretical calculation.6 · The third-order NLO test · Fig. 5f; Supplementary Figs. 10c and 14
Cu-HHTP [001] orientation DFT modelresearch_0312__mat__mat_cu_hhtp_modelModel · Model System · ModelComputational model for [001] orientation.13, 15-16, 20 · Supplementary figures and tables · Supplementary Figs. 10-13; Supplementary Table 2
Cu-HHTP [100] orientation DFT modelresearch_0312__mat__mat_cu_hhtp_modelModel · Model System · ModelComputational model for [100] orientation.13, 15-16, 20 · Supplementary figures and tables · Supplementary Figs. 10-13; Supplementary Table 2