Thickness effect of RF sputtered TiO2 passivating layer on the performance of dye-sensitized solar cells

Jin A. Jeong; Han Ki Kim

doi:10.1016/j.solmat.2010.02.008

Thickness effect of RF sputtered TiO₂ passivating layer on the performance of dye-sensitized solar cells

Jin A. Jeong
, Han Ki Kim

Kyung Hee University

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

50 Scopus citations

Abstract

We report on the characteristics of a TiO₂ passivating layer grown by radio frequency (RF) magnetron sputtering on F-doped SnO₂ (FTO) electrodes as a function of its thickness. The optical transparency, surface roughness and passivation properties of the TiO₂ layer passivating the FTO electrode depend on the thickness of the TiO₂ passivating layer. In addition, it was found that the power conversion efficiency of the dye-sensitized solar cells (DSSCs) is critically dependent on the thickness of RF sputtered TiO₂ layer inserted between FTO electrode and nanoporous TiO₂ layer. The DSSC fabricated on 50 nm thick TiO₂ passivating FTO electrode showed the maximum power conversion efficiency of 4.42% due to effective prevention of the electron transfer to electrolyte. This indicates that the thickness optimization of the TiO₂ passivating layer is one of the important parameter to obtain high performance DSSCs.

Original language	English
Pages (from-to)	344-348
Number of pages	5
Journal	Solar Energy Materials and Solar Cells
Volume	95
Issue number	1
DOIs	https://doi.org/10.1016/j.solmat.2010.02.008
State	Published - Jan 2011
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Dye-sensitized solar cells (DSSCs)
F-doped SnO (FTO)
Passivation
Power conversion efficiency (PCE)
RF magnetron sputtering
TiO

Access to Document

10.1016/j.solmat.2010.02.008

Cite this

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title = "Thickness effect of RF sputtered TiO2 passivating layer on the performance of dye-sensitized solar cells",

abstract = "We report on the characteristics of a TiO2 passivating layer grown by radio frequency (RF) magnetron sputtering on F-doped SnO2 (FTO) electrodes as a function of its thickness. The optical transparency, surface roughness and passivation properties of the TiO2 layer passivating the FTO electrode depend on the thickness of the TiO2 passivating layer. In addition, it was found that the power conversion efficiency of the dye-sensitized solar cells (DSSCs) is critically dependent on the thickness of RF sputtered TiO2 layer inserted between FTO electrode and nanoporous TiO2 layer. The DSSC fabricated on 50 nm thick TiO2 passivating FTO electrode showed the maximum power conversion efficiency of 4.42\% due to effective prevention of the electron transfer to electrolyte. This indicates that the thickness optimization of the TiO2 passivating layer is one of the important parameter to obtain high performance DSSCs.",

keywords = "Dye-sensitized solar cells (DSSCs), F-doped SnO (FTO), Passivation, Power conversion efficiency (PCE), RF magnetron sputtering, TiO",

author = "Jeong, \{Jin A.\} and Kim, \{Han Ki\}",

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T1 - Thickness effect of RF sputtered TiO2 passivating layer on the performance of dye-sensitized solar cells

AU - Jeong, Jin A.

AU - Kim, Han Ki

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N2 - We report on the characteristics of a TiO2 passivating layer grown by radio frequency (RF) magnetron sputtering on F-doped SnO2 (FTO) electrodes as a function of its thickness. The optical transparency, surface roughness and passivation properties of the TiO2 layer passivating the FTO electrode depend on the thickness of the TiO2 passivating layer. In addition, it was found that the power conversion efficiency of the dye-sensitized solar cells (DSSCs) is critically dependent on the thickness of RF sputtered TiO2 layer inserted between FTO electrode and nanoporous TiO2 layer. The DSSC fabricated on 50 nm thick TiO2 passivating FTO electrode showed the maximum power conversion efficiency of 4.42% due to effective prevention of the electron transfer to electrolyte. This indicates that the thickness optimization of the TiO2 passivating layer is one of the important parameter to obtain high performance DSSCs.

AB - We report on the characteristics of a TiO2 passivating layer grown by radio frequency (RF) magnetron sputtering on F-doped SnO2 (FTO) electrodes as a function of its thickness. The optical transparency, surface roughness and passivation properties of the TiO2 layer passivating the FTO electrode depend on the thickness of the TiO2 passivating layer. In addition, it was found that the power conversion efficiency of the dye-sensitized solar cells (DSSCs) is critically dependent on the thickness of RF sputtered TiO2 layer inserted between FTO electrode and nanoporous TiO2 layer. The DSSC fabricated on 50 nm thick TiO2 passivating FTO electrode showed the maximum power conversion efficiency of 4.42% due to effective prevention of the electron transfer to electrolyte. This indicates that the thickness optimization of the TiO2 passivating layer is one of the important parameter to obtain high performance DSSCs.

KW - Dye-sensitized solar cells (DSSCs)

KW - F-doped SnO (FTO)

KW - Passivation

KW - Power conversion efficiency (PCE)

KW - RF magnetron sputtering

KW - TiO

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