Highly-ordered arrays of TiO2 thin film for dye-sensitized solar cells fabricated by anodic oxidation process

Ho Chang; Chin Guo Kuo; Cheng Yi Chou

doi:10.1007/s12541-015-0163-5

Highly-ordered arrays of TiO₂ thin film for dye-sensitized solar cells fabricated by anodic oxidation process

Ho Chang^*, Chin Guo Kuo, Cheng Yi Chou

^*Corresponding author for this work

Department of Industrial Education

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

3 Citations (Scopus)

Abstract

Highly ordered arrays of TiO₂ photoelectrode thin films of dye-sensitized solar cells (DSSCs) were fabricated by anodic oxidation method. This study analyzed the effects of electrolytes under similar NH₄F concentrations but different reaction times in the anodic oxidation process on the photoelectric conversion efficiency of DSSC, open-circuit voltage decay, electron lifetime, and incident photon-to-electron conversion efficiency (IPCE) of the prepared DSSC. Experimental results show that the TiO₂ nanotube thin film prepared by anodic oxidation with an electrolyte with a NH₄F concentration at 0.5 wt% and with a reaction time of 5 hr can be fabricated with a length of 17 μm and a photoelectric conversion efficiency of 4.87%, open-circuit voltage of 0.74 V, and short-circuit current density of 13.2 mA/cm². Additionally, the same NH₄F concentration but with a reaction time of 10 hr achieves a length of 22 μm and a photoelectric conversion efficiency of 6.58%, open-circuit voltage of 0.81 V, and short-circuit current density of 16.1 mA/cm².

Original language	English
Pages (from-to)	1251-1255
Number of pages	5
Journal	International Journal of Precision Engineering and Manufacturing
Volume	16
Issue number	7
DOIs	https://doi.org/10.1007/s12541-015-0163-5
Publication status	Published - 2015 Jun 25

Keywords

Anodizing method
Dye-sensitized solar cell (DSSC)
IPCE
TiO nanotube

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering
Electrical and Electronic Engineering

Access to Document

10.1007/s12541-015-0163-5

Cite this

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title = "Highly-ordered arrays of TiO2 thin film for dye-sensitized solar cells fabricated by anodic oxidation process",

abstract = "Highly ordered arrays of TiO2 photoelectrode thin films of dye-sensitized solar cells (DSSCs) were fabricated by anodic oxidation method. This study analyzed the effects of electrolytes under similar NH4F concentrations but different reaction times in the anodic oxidation process on the photoelectric conversion efficiency of DSSC, open-circuit voltage decay, electron lifetime, and incident photon-to-electron conversion efficiency (IPCE) of the prepared DSSC. Experimental results show that the TiO2 nanotube thin film prepared by anodic oxidation with an electrolyte with a NH4F concentration at 0.5 wt% and with a reaction time of 5 hr can be fabricated with a length of 17 μm and a photoelectric conversion efficiency of 4.87%, open-circuit voltage of 0.74 V, and short-circuit current density of 13.2 mA/cm2. Additionally, the same NH4F concentration but with a reaction time of 10 hr achieves a length of 22 μm and a photoelectric conversion efficiency of 6.58%, open-circuit voltage of 0.81 V, and short-circuit current density of 16.1 mA/cm2.",

keywords = "Anodizing method, Dye-sensitized solar cell (DSSC), IPCE, TiO nanotube",

author = "Ho Chang and Kuo, {Chin Guo} and Chou, {Cheng Yi}",

note = "Publisher Copyright: {\textcopyright} 2015, Korean Society for Precision Engineering and Springer-Verlag Berlin Heidelberg.",

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AU - Chang, Ho

AU - Kuo, Chin Guo

AU - Chou, Cheng Yi

PY - 2015/6/25

Y1 - 2015/6/25

N2 - Highly ordered arrays of TiO2 photoelectrode thin films of dye-sensitized solar cells (DSSCs) were fabricated by anodic oxidation method. This study analyzed the effects of electrolytes under similar NH4F concentrations but different reaction times in the anodic oxidation process on the photoelectric conversion efficiency of DSSC, open-circuit voltage decay, electron lifetime, and incident photon-to-electron conversion efficiency (IPCE) of the prepared DSSC. Experimental results show that the TiO2 nanotube thin film prepared by anodic oxidation with an electrolyte with a NH4F concentration at 0.5 wt% and with a reaction time of 5 hr can be fabricated with a length of 17 μm and a photoelectric conversion efficiency of 4.87%, open-circuit voltage of 0.74 V, and short-circuit current density of 13.2 mA/cm2. Additionally, the same NH4F concentration but with a reaction time of 10 hr achieves a length of 22 μm and a photoelectric conversion efficiency of 6.58%, open-circuit voltage of 0.81 V, and short-circuit current density of 16.1 mA/cm2.

AB - Highly ordered arrays of TiO2 photoelectrode thin films of dye-sensitized solar cells (DSSCs) were fabricated by anodic oxidation method. This study analyzed the effects of electrolytes under similar NH4F concentrations but different reaction times in the anodic oxidation process on the photoelectric conversion efficiency of DSSC, open-circuit voltage decay, electron lifetime, and incident photon-to-electron conversion efficiency (IPCE) of the prepared DSSC. Experimental results show that the TiO2 nanotube thin film prepared by anodic oxidation with an electrolyte with a NH4F concentration at 0.5 wt% and with a reaction time of 5 hr can be fabricated with a length of 17 μm and a photoelectric conversion efficiency of 4.87%, open-circuit voltage of 0.74 V, and short-circuit current density of 13.2 mA/cm2. Additionally, the same NH4F concentration but with a reaction time of 10 hr achieves a length of 22 μm and a photoelectric conversion efficiency of 6.58%, open-circuit voltage of 0.81 V, and short-circuit current density of 16.1 mA/cm2.

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