Controlled synthesis of monodispersed ZnO nanospindle decorated TiO<sub>2</sub> mesospheres for enhanced charge transport in dye-sensitized solar cells

Athithya, S.; Harish, S.; Ikeda, Hiroya; Navaneethan, M.; Archana, J.

doi:10.1039/d3ce00031a

Cited by 6 publications

(3 citation statements)

References 69 publications

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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%

“…Alternatively, ZnO has an electron band gap similar to that of TiO 2 but has high electron mobility [ 28 , 29 ]. There are many ZnO-based DSSCs with various morphologies, such as ZnO nanorods [ 14 , 15 , 16 , 17 ], nanoflowers [ 18 , 19 , 20 ], nanotubes [ 21 , 22 , 23 ], and ZnO core-shell structures [ 24 , 25 , 26 , 27 ]. However, ZnO-based DSSCs exhibit relatively low efficiencies compared to TiO 2 -based DSSCs because a complex that forms between ZnO and carboxylic acid in the dye decreases efficiency.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Introductionmentioning

confidence: 99%

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

View full text Add to dashboard Cite

show abstract

“…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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Boosting the performance of dye-sensitized solar cells by employing Li-substituted NiO nanosheets as highly efficient electrocatalysts for reduction of triiodide

Gunasekaran,

Athithya,

Archana

2024

Ceramics International

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Controlled synthesis of monodispersed ZnO nanospindle decorated TiO₂ mesospheres for enhanced charge transport in dye-sensitized solar cells

Abstract: Schematic illustrations of DSSC device.

Cited by 6 publications

References 69 publications

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

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

Boosting the performance of dye-sensitized solar cells by employing Li-substituted NiO nanosheets as highly efficient electrocatalysts for reduction of triiodide

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Controlled synthesis of monodispersed ZnO nanospindle decorated TiO2 mesospheres for enhanced charge transport in dye-sensitized solar cells

Abstract: Schematic illustrations of DSSC device.

Cited by 6 publications

References 69 publications

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

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

Boosting the performance of dye-sensitized solar cells by employing Li-substituted NiO nanosheets as highly efficient electrocatalysts for reduction of triiodide

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Controlled synthesis of monodispersed ZnO nanospindle decorated TiO₂ mesospheres for enhanced charge transport in dye-sensitized solar cells