Auspicious energy conversion performance of dye-sensitized solar cells based on Gd2O3-impregnated SmTiO3 perovskite/TiO2 nanocomposite photoelectrodes

Alizadeh, Amin; Shariatinia‬, Zahra

doi:10.1016/j.electacta.2023.142280

Cited by 15 publications

(5 citation statements)

References 83 publications

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“…25 Furthermore, the broad peaks in the range of 450−850 cm −1 correspond to the Ti−O vibrations. 26 In the spectrum of the TQDs/TOVs/CFS-2 sample, the peaks at 570 and 630 cm −1 are allocated to the Cu−S vibrations. The weak peaks at 995 and 1130 cm −1 correspond to the Fe−S vibrations, and finally, the peak at 1045 cm −1 is relevant to the S−S vibration.…”

Section: Resultsmentioning

confidence: 99%

“…In the spectra of TQDs/TOVs and TQDs/TOVs/CFS-2 samples as shown in Figure b, the broad peaks in the range of 3300–3650 cm –1 and the almost sharp peak at 1630 cm –1 were assigned to the O–H stretching and bending vibrations, respectively . Furthermore, the broad peaks in the range of 450–850 cm –1 correspond to the Ti–O vibrations . In the spectrum of the TQDs/TOVs/CFS-2 sample, the peaks at 570 and 630 cm –1 are allocated to the Cu–S vibrations.…”

Section: Resultsmentioning

confidence: 99%

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Incorporation of Cu₅FeS₄ QDs with Abundant Oxygen Vacancy TiO₂ QDs/TiO₂ OVs: Double S-Scheme Photocatalysts for Effectual N₂ Conversion to NH₃ under Simulated Solar Light

Pournemati,

Habibi-Yangjeh,

Khataee

2024

Inorg. Chem.

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Photocatalytic N 2 conversion to NH 3 is a green, sustainable pathway with renewable energy sources and carbon neutrality. In this research, ternary TiO 2 QDs/TiO 2 OVs/Cu 5 FeS 4 nanocomposites were prepared by an easy and affordable procedure and utilized to produce clean ammonia energy without a sacrificial agent. The amount of produced green ammonia by the optimum nanocomposite achieved was 17,274 μmol L −1 g −1 , which was approximately 20.9, 6.48, 4.45, 2.26, and 1.45 times higher than those of commercial TiO 2 , TiO 2 QDs, TiO 2 OVs, Cu 5 FeS 4 , and TiO 2 QDs/TiO 2 OVs photocatalysts, respectively. Lattice compatibility through the developed homojunction within TiO 2 QDs/TiO 2 OVs and the integration of Cu 5 FeS 4 nanoparticles led to the establishment of a double S-scheme homo/heterojunction system, which improved the photocatalytic activity by maintaining electrons and holes with high oxidation and reduction power and greatly reduced the recombination of charges, which led to the acceleration of charge transfer and migration. Besides, the promoted surface area compared to the pure components, introducing oxygen vacancies, and reducing the particle size boosted the photocatalytic N 2 conversion to NH 3 . The results of this research are a basis for the rational design of homojunction/heterojunction visible-light-responsive systems for photocatalytic nitrogen fixation reactions.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Incorporation of Cu₅FeS₄ QDs with Abundant Oxygen Vacancy TiO₂ QDs/TiO₂ OVs: Double S-Scheme Photocatalysts for Effectual N₂ Conversion to NH₃ under Simulated Solar Light

Pournemati,

Habibi-Yangjeh,

Khataee

2024

Inorg. Chem.

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“…The ideal photoanode has a large surface area, high dye absorption, fast electron transfer rate, and suppressed electron recombination. TiO 2 [ 3 , 4 , 5 , 6 , 7 , 8 ], SnO 2 [ 9 , 10 , 11 , 12 , 13 ], and ZnO [ 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 ] are used as photoanodes. In general, TiO 2 is used as a photoanode because it has an appropriate energy band gap, a large specific surface area, stable dye adsorption, and acts as a scattering layer leading to enhanced light harvesting.…”

Section: Introductionmentioning

confidence: 99%

Amphiphilic Graft Copolymers as Templates for the Generation of Binary Metal Oxide Mesoporous Interfacial Layers for Solid-State Photovoltaic Cells

Lim,

Jeong,

Moon

et al. 2024

Nanomaterials

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The binary metal oxide mesoporous interfacial layers (bi-MO meso IF layer) templated by a graft copolymer are synthesized between a fluorine-doped tin oxide (FTO) substrate and nanocrystalline TiO2 (nc-TiO2). Amphiphilic graft copolymers, Poly(epichlorohydrin)-graft-poly(styrene), PECH-g-PS, were used as a structure-directing agent, and the fabricated bi-MO meso IF layer exhibits good interconnectivity and high porosity. Even if the amount of ZnO in bi-MO meso IF layer increased, it was confirmed that the morphology and porosity of the bi-MO meso IF layer were well-maintained. In addtion, the bi-MO meso IF layer coated onto FTO substrates shows higher transmittance compared with a pristine FTO substrate and dense-TiO2/FTO, due to the reduced surface roughness of FTO. The overall conversion efficiency (η) of solid-state photovoltaic cells, dye-sensitized solar cells (DSSCs) fabricated with nc-TiO2 layer/bi-MO meso IF layer TZ1 used as a photoanode, reaches 5.0% at 100 mW cm−2, which is higher than that of DSSCs with an nc-TiO2 layer/dense-TiO2 layer (4.2%), resulting from enhanced light harvesting, good interconnectivity, and reduced interfacial resistance. The cell efficiency of the device did not change after 15 days, indicating that the bi-MO meso IF layer with solid-state electrolyte has improved electrode/electrolyte interface and electrochemical stability. Additionally, commercial scattering layer/nc-TiO2 layer/bi-MO meso IF layer TZ1 photoanode-fabricated solid-state photovoltaic cells (DSSCs) achieved an overall conversion efficiency (η) of 6.4% at 100 mW cm−2.

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“…The ideal photoanode has a large surface area, high dye absorption, fast electron transfer rate, and suppressed electron recombination. TiO 2 [3][4][5][6][7][8], SnO 2 [9][10][11][12][13], and ZnO [14][15][16][17][18][19][20][21][22][23][24][25][26][27] are used as photoanodes. In general, TiO 2 is used as a photoanode because it has an appropriate energy band gap, a large specific surface area, stable dye adsorption, and acts as a scattering layer leading to enhanced light harvesting.…”

Section: Introductionmentioning

confidence: 99%

Amphiphilic Graft Copolymers as Templates for the Generation of Binary Metal Oxide Mesoporous Interfacial Layers for Solid State Photovoltaic Cells

Lim,

Jeong,

Moon

et al. 2024

Preprint

View full text Add to dashboard Cite

The binary metal oxide mesoporous interfacial layers (bi-MO meso IF layer) templated by a graft copolymer is synthesized between a fluorine-doped tin oxide (FTO) substrate and nanocrystalline TiO2 (nc-TiO2). Amphiphilic graft copolymers, Poly(epichlorohydrin)-graft-poly(styrene), PECH-g-PS, was used as a structure-directing agent, and the fabricated bi-MO meso IF layer exhibits good interconnectivity and high porosity. Even if the amount of ZnO in bi-MO meso IF layer increased, it was confirmed that the morphology and porosity of bi-MO meso IF layer was well maintained. In addtion, bi-MO meso IF layer coated onto FTO substrates show higher transmittance compared with a pristine FTO substrate and dense-TiO2/FTO, due to the reduced surface roughness of FTO. The overall conversion efficiency (η) of a solid state photovoltaic cells, dye-sensitized solar cell (DSSC) fabricated with nc-TiO2 layer/bi-MO meso IF layer TZ1 used as a photoanode reaches 5.0% at 100 mW cm-2, which is higher than that of DSSC with a nc-TiO2 layer/dense-TiO2 layer (4.2%), resulting from enhanced light harvesting, good interconnectivity, and reduced interfacial resistance. The cell efficiency of the device did not change after 15 days, indicating that the bi-MO meso IF layer with solid-state electrolyte has improved electrode/electrolyte interface and electrochemical stability. Additionally, commercial scattering layer/nc-TiO2 layer/bi-MO meso IF layer TZ1 photoanode fabricated solid state photovoltaic cells (DSSC) achieved an overall conversion efficiency (η) of 6.4% at 100 mW cm-2.

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Auspicious energy conversion performance of dye-sensitized solar cells based on Gd2O3-impregnated SmTiO3 perovskite/TiO2 nanocomposite photoelectrodes

Cited by 15 publications

References 83 publications

Incorporation of Cu₅FeS₄ QDs with Abundant Oxygen Vacancy TiO₂ QDs/TiO₂ OVs: Double S-Scheme Photocatalysts for Effectual N₂ Conversion to NH₃ under Simulated Solar Light

Incorporation of Cu₅FeS₄ QDs with Abundant Oxygen Vacancy TiO₂ QDs/TiO₂ OVs: Double S-Scheme Photocatalysts for Effectual N₂ Conversion to NH₃ under Simulated Solar Light

Amphiphilic Graft Copolymers as Templates for the Generation of Binary Metal Oxide Mesoporous Interfacial Layers for Solid-State Photovoltaic Cells

Amphiphilic Graft Copolymers as Templates for the Generation of Binary Metal Oxide Mesoporous Interfacial Layers for Solid State Photovoltaic Cells

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Auspicious energy conversion performance of dye-sensitized solar cells based on Gd2O3-impregnated SmTiO3 perovskite/TiO2 nanocomposite photoelectrodes

Cited by 15 publications

References 83 publications

Incorporation of Cu5FeS4 QDs with Abundant Oxygen Vacancy TiO2 QDs/TiO2 OVs: Double S-Scheme Photocatalysts for Effectual N2 Conversion to NH3 under Simulated Solar Light

Incorporation of Cu5FeS4 QDs with Abundant Oxygen Vacancy TiO2 QDs/TiO2 OVs: Double S-Scheme Photocatalysts for Effectual N2 Conversion to NH3 under Simulated Solar Light

Amphiphilic Graft Copolymers as Templates for the Generation of Binary Metal Oxide Mesoporous Interfacial Layers for Solid-State Photovoltaic Cells

Amphiphilic Graft Copolymers as Templates for the Generation of Binary Metal Oxide Mesoporous Interfacial Layers for Solid State Photovoltaic Cells

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Incorporation of Cu₅FeS₄ QDs with Abundant Oxygen Vacancy TiO₂ QDs/TiO₂ OVs: Double S-Scheme Photocatalysts for Effectual N₂ Conversion to NH₃ under Simulated Solar Light

Incorporation of Cu₅FeS₄ QDs with Abundant Oxygen Vacancy TiO₂ QDs/TiO₂ OVs: Double S-Scheme Photocatalysts for Effectual N₂ Conversion to NH₃ under Simulated Solar Light