Dye-sensitized solar cells based on porous hollow tin oxide nanofibers

Sudhan Sigdel; Hytham Elbohy; Jiawei Gong; Nirmal Adhikari; Krishnan Sumathy; Hui Qiao; Qufu Wei; Muhammad Hassan Sayyad; Jiantao Zai; Xuefeng Qian; Qiquan Qiao

doi:10.1109/TED.2015.2421475

Dye-sensitized solar cells based on porous hollow tin oxide nanofibers

Sudhan Sigdel, Hytham Elbohy, Jiawei Gong, Nirmal Adhikari, Krishnan Sumathy, Hui Qiao, Qufu Wei, Muhammad Hassan Sayyad, Jiantao Zai, Xuefeng Qian, Qiquan Qiao

Research output: Contribution to journal › Article › peer-review

35 Scopus citations

Abstract

Porous hollow tin oxide (SnO₂) nanofibers and their composite with titanium dioxide (TiTiO₂) particles (Degussa P25) were investigated as a photoanode for dye-sensitized solar cells. Incorporation of TiTiO₂ particles in porous hollow SnO₂ fibers enhanced the power conversion efficiency (η) from 4.06% to 5.72% under 100-mW/cm² light intensity. The enhancement of efficiency was mainly attributed to increase in current density ( J_sc) and improvement in fill factor (FF). Increase in Jsc was caused by higher dye loading as indicated by UV-Vis absorption spectra and the improvement in FF was attributed to faster charge transport time as obtained from transient analysis. The microstructure of SnO₂ fibers was studied using transmission electron microscope, scanning electron microscope, and X-ray diffraction. The electron transfer and recombination life times were studied using transient analysis, whereas interfacial charge transfer was studied using electrochemical impedance spectroscopy.

Original language	English (US)
Article number	7101817
Pages (from-to)	2027-2032
Number of pages	6
Journal	IEEE Transactions on Electron Devices
Volume	62
Issue number	6
DOIs	https://doi.org/10.1109/TED.2015.2421475
State	Published - Jun 1 2015
Externally published	Yes

Keywords

Dye-sensitized solar cells (DSSCs)
hollow
nanofibers
porous
tin oxide (SnO).

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TED.2015.2421475

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title = "Dye-sensitized solar cells based on porous hollow tin oxide nanofibers",

abstract = "Porous hollow tin oxide (SnO2) nanofibers and their composite with titanium dioxide (TiTiO2) particles (Degussa P25) were investigated as a photoanode for dye-sensitized solar cells. Incorporation of TiTiO2 particles in porous hollow SnO2 fibers enhanced the power conversion efficiency (η) from 4.06% to 5.72% under 100-mW/cm2 light intensity. The enhancement of efficiency was mainly attributed to increase in current density ( Jsc) and improvement in fill factor (FF). Increase in Jsc was caused by higher dye loading as indicated by UV-Vis absorption spectra and the improvement in FF was attributed to faster charge transport time as obtained from transient analysis. The microstructure of SnO2 fibers was studied using transmission electron microscope, scanning electron microscope, and X-ray diffraction. The electron transfer and recombination life times were studied using transient analysis, whereas interfacial charge transfer was studied using electrochemical impedance spectroscopy.",

keywords = "Dye-sensitized solar cells (DSSCs), hollow, nanofibers, porous, tin oxide (SnO).",

author = "Sudhan Sigdel and Hytham Elbohy and Jiawei Gong and Nirmal Adhikari and Krishnan Sumathy and Hui Qiao and Qufu Wei and Sayyad, {Muhammad Hassan} and Jiantao Zai and Xuefeng Qian and Qiquan Qiao",

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doi = "10.1109/TED.2015.2421475",

language = "English (US)",

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AU - Sigdel, Sudhan

AU - Elbohy, Hytham

AU - Gong, Jiawei

AU - Adhikari, Nirmal

AU - Sumathy, Krishnan

AU - Qiao, Hui

AU - Wei, Qufu

AU - Sayyad, Muhammad Hassan

AU - Zai, Jiantao

AU - Qian, Xuefeng

AU - Qiao, Qiquan

PY - 2015/6/1

Y1 - 2015/6/1

N2 - Porous hollow tin oxide (SnO2) nanofibers and their composite with titanium dioxide (TiTiO2) particles (Degussa P25) were investigated as a photoanode for dye-sensitized solar cells. Incorporation of TiTiO2 particles in porous hollow SnO2 fibers enhanced the power conversion efficiency (η) from 4.06% to 5.72% under 100-mW/cm2 light intensity. The enhancement of efficiency was mainly attributed to increase in current density ( Jsc) and improvement in fill factor (FF). Increase in Jsc was caused by higher dye loading as indicated by UV-Vis absorption spectra and the improvement in FF was attributed to faster charge transport time as obtained from transient analysis. The microstructure of SnO2 fibers was studied using transmission electron microscope, scanning electron microscope, and X-ray diffraction. The electron transfer and recombination life times were studied using transient analysis, whereas interfacial charge transfer was studied using electrochemical impedance spectroscopy.

AB - Porous hollow tin oxide (SnO2) nanofibers and their composite with titanium dioxide (TiTiO2) particles (Degussa P25) were investigated as a photoanode for dye-sensitized solar cells. Incorporation of TiTiO2 particles in porous hollow SnO2 fibers enhanced the power conversion efficiency (η) from 4.06% to 5.72% under 100-mW/cm2 light intensity. The enhancement of efficiency was mainly attributed to increase in current density ( Jsc) and improvement in fill factor (FF). Increase in Jsc was caused by higher dye loading as indicated by UV-Vis absorption spectra and the improvement in FF was attributed to faster charge transport time as obtained from transient analysis. The microstructure of SnO2 fibers was studied using transmission electron microscope, scanning electron microscope, and X-ray diffraction. The electron transfer and recombination life times were studied using transient analysis, whereas interfacial charge transfer was studied using electrochemical impedance spectroscopy.

KW - Dye-sensitized solar cells (DSSCs)

KW - hollow

KW - nanofibers

KW - porous

KW - tin oxide (SnO).

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Dye-sensitized solar cells based on porous hollow tin oxide nanofibers

Abstract

Keywords

ASJC Scopus subject areas

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