Primary studyCore evidenceThin Film Device

Efficient MOF-Sensitized Solar Cells Featuring Solvothermally Grown [100]-Oriented Pillared Porphyrin Framework-11 Films on ZnO/FTO Surfaces

Gordillo M.A., Panda D.K., Saha S. · ACS Applied Materials and Interfaces · 2019 · 3196-3206

4materials
9samples
8synthesis routes
29measurements
166results
7claims 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

EQE profiles resemble porphyrin absorption, supporting that ZnTCPP ligands in PPF-11 produce the photocurrent.

Caveat: EQE peak values were read approximately from the plotted axis.

3202 · Photovoltaic Performance · Linked to 5 structured results

Application RelevanceSupport assessment: High

The best reported replicate for [100]-oriented PPF-11/ZnO-FTO reaches Jsc 4.65 mA/cm2, Voc 469 mV, FF 39%, and PCE 0.86% under 1 sun.

Caveat: Main Table 1 average is lower PCE 0.82 +/- 0.05%; best single replicate is from SI Table S1.

S-6 · Table S1 · Table S1 · Linked to 4 structured results

CaveatSupport assessment: Medium

Although related host-guest CT interactions can enhance conductivity, C60-doped PPF-11/ZnO films showed no measurable conductivity surge in this paper.

Caveat: The supplied text does not give the conductivity measurement method or numeric detection limit.

3198 · Results and Discussion · Linked to 1 structured result

Composite RoleSupport assessment: High

C60 guests create ZnTCPP/C60 charge-transfer absorption and PL quenching but weaken photovoltaic response relative to pristine PPF-11 films.

Caveat: Mechanism is inferred from electrolyte exclusion and isolated C60 guests rather than directly imaged transport paths.

3203 · Conclusions · Linked to 5 structured results

Structure Property LinkSupport assessment: High

The [100]-oriented, covalently attached PPF-11/ZnO photoanode gives higher Jsc/PCE and lower R2 than drop-cast [001]-oriented controls.

Caveat: Authors state individual contributions cannot be fully separated experimentally.

3203 · Conclusions · Linked to 5 structured results

Synthesis MechanismSupport assessment: High

ZnO-bound TCPP ligands capture porphyrin struts and guide [100]-oriented PPF-11 film growth directly on ZnO-FTO without insulating SAMs.

Caveat: Main text notes both bare and TCPP-precoated ZnO yield [100] films; TCPP precoat improves uniformity/robustness.

3199 · Spontaneous solvothermal growth · Linked to 2 structured results

Transport MechanismSupport assessment: Medium

Lower photoanode/electrolyte charge-transfer resistance R2 correlates with stronger photovoltaic performance across the devices.

Caveat: EIS is application-device transport, not intrinsic MOF conductivity.

3203 · Photovoltaic Performance · Linked to 5 structured results

Material identities

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

MaterialCompositionStructure contextSource
C60-doped PPF-11C60@ [Zn2(ZnTCPP)(DMBPY)]; estimated ZnTCPP/C60 = 2:1PPF-11 Zn2(COO)4 paddle-wheel nodes retained after C60 infiltration · ZnTCPP and DMBPY framework with encapsulated C60 guests3D · CompositeGuest-loaded noncatenated PPF-11; PXRD mostly unchanged after C60 infiltration with some new peaks.3200 · Doping PPF-11 with electron-accepting C60 guests
Pillared porphyrin framework-11 (PPF-11)[Zn2(ZnTCPP)(DMBPY)]Zn2(COO)4 paddle-wheel nodes with ZnTCPP struts; DMBPY axially coordinates Zn2 nodes · Zn-tetrakis(4-carboxyphenyl)porphyrin (ZnTCPP) and 2,2-dimethyl-4,4-bipyridine (DMBPY)3D · PristineNoncatenated pillared porphyrin framework with AA stacking and large cavities; bulk preferential [001], solvothermal ZnO film [100].3198 · Bulk PPF-11 synthesis and characterization · Figure 1
TCPP-coated ZnO-FTO control electrodeTCPP monolayer on ZnO-FTOZnO surface anchors carboxylate groups · meso-tetrakis(4-carboxyphenyl)porphyrin (TCPP)unknown · CompositeMolecular porphyrin-coated ZnO-FTO control and growth-directing substrate.S-5 · Solvothermal Growth
ZnO-FTO control electrodeZnO on FTO glassunknown · Model SystemAnnealed semiconducting ZnO film on FTO; non-MOF control and growth substrate.S-4 · Preparation of ZnO films

Sample register

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

Show 9 sample records
SampleForm and roleProcessing and geometrySource
C60-doped [100]-oriented PPF-11/ZnO-FTO filmresearch_0630__mat__mat_c60_ppf11Electrode · Target Sample · Guest LoadedPPF-11/ZnO film solvent-exchanged to toluene, C60-loaded, washed with fresh tolueneTCPP-coated annealed ZnO-FTO · ca. 10 um before dopingS-4 · Doping PPF-11 with C60
C60-doped PPF-11 crystalsresearch_0630__mat__mat_c60_ppf11Powder · Target Sample · Guest Loadedsolvent-exchanged to toluene, soaked in saturated C60/toluene, washed; dark violetS-4 · Doping PPF-11 with C60
drop-cast PPF-11 on TCPP/ZnO-FTOresearch_0630__mat__mat_ppf11Electrode · Pristine Control · Composite10 drops of PPF-11 suspension in CHCl3 deposited sequentially; predominantly [001] orientationTCPP-coated ZnO-FTOS-5 · Drop-Cast PPF-11 Films
drop-cast PPF-11 on ZnO-FTOresearch_0630__mat__mat_ppf11Electrode · Pristine Control · CompositePPF-11 suspension in CHCl3 drop-cast onto annealed ZnO-FTObare ZnO-FTOS-5 · Drop-Cast PPF-11 Films
[100]-oriented PPF-11 film on unmodified ZnO-FTOresearch_0630__mat__mat_ppf11Thin Film · Pristine Control · Pristine Frameworksolvothermally grown directly on unmodified ZnO; identical PXRD orientation to TCPP-precoated filmsbare annealed ZnO-FTO3199 · Spontaneous solvothermal growth
[100]-oriented PPF-11 film on TCPP-coated ZnO-FTOresearch_0630__mat__mat_ppf11Electrode · Target Sample · Pristine Frameworksolvothermally grown 30 min; washed/soaked in DMF; covalently attached through TCPP/ZnO interfaceTCPP-precoated annealed ZnO-FTO · ca. 10 um PPF-11 layer on 2.5 um ZnO3201 · Photovoltaic performance
bulk PPF-11 crystalsresearch_0630__mat__mat_ppf11Single Crystal · Pristine Control · Pristine Frameworkreddish-purple rectangular plate-like crystals washed with DMF and stored in DMF3198 · Bulk PPF-11 synthesis and characterization
TCPP/ZnO-FTO filmresearch_0630__mat__mat_tcpp_zno_controlElectrode · Pristine Control · CompositeZnO-FTO soaked in TCPP/EtOH to form TCPP-coated ZnO; no PPF-11 growth in control deviceannealed ZnO-FTO · 2.5 um ZnO layer3199 · Spontaneous solvothermal growth
blank ZnO-FTO filmresearch_0630__mat__mat_zno_fto_controlElectrode · Pristine Control · ModelZnO/EtOH spin-coated on FTO and annealed at 350 CFTO glass · 2.5 um ZnO layerS-4 · Preparation of ZnO films