The enhancement of the performance of dye sensitized solar cells using Nb 2O 5-TiO 2 compound

Seok Won Choi; Hyunwoong Seo; Min Kyu Son; Soo Kyoung Kim; Na Yeong Hong; Hee Je Kim; Jong Rak Kim

doi:10.5370/KIEE.2012.61.8.1153

The enhancement of the performance of dye sensitized solar cells using Nb ₂O ₅-TiO ₂ compound

Seok Won Choi, Hyunwoong Seo, Min Kyu Son, Soo Kyoung Kim, Na Yeong Hong, Hee Je Kim, Jong Rak Kim

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

Abstract

Niobium oxide (NbA) has a strong chemical coherence and good electrical conductivity. Therefore, this material is helpful to enhance the performance of the dye sensitized solar cells (DSC) by improving the electron mobility. In this study, Nb ₂O ₅ was mixed with TiO ₂ and this compound was applied to the DSC to improve its performance. As a result, the current density of the DSC using the Nb ₂O ₅-TiO ₂ compound on the photoelectrode was increased, because the internal resistance concerned to the electron transfer in the photoelectrode of DSC was decreased. However, large amount of the Nb ₂O ₅ induces the decrease of the efficiency of the DSC because the surface area to attach dye molecules is decreased due to the large particle of Nb _2O5. Therefore, it is important to optimize the mixture ratio of the Nb ₂O ₅-TiO ₂ compound for maximizing the performance of the DSC. Finally, the most optimum performance of the DSC was shown in case of the Nb ₂O ₅ concentration of 10 wt% of the Nb ₂O ₅-TiO ₂ compound.

Original language	English
Pages (from-to)	1153-1158
Number of pages	6
Journal	Transactions of the Korean Institute of Electrical Engineers
Volume	61
Issue number	8
DOIs	https://doi.org/10.5370/KIEE.2012.61.8.1153
Publication status	Published - Aug 2012
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

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10.5370/KIEE.2012.61.8.1153

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title = "The enhancement of the performance of dye sensitized solar cells using Nb 2O 5-TiO 2 compound",

abstract = "Niobium oxide (NbA) has a strong chemical coherence and good electrical conductivity. Therefore, this material is helpful to enhance the performance of the dye sensitized solar cells (DSC) by improving the electron mobility. In this study, Nb 2O 5 was mixed with TiO 2 and this compound was applied to the DSC to improve its performance. As a result, the current density of the DSC using the Nb 2O 5-TiO 2 compound on the photoelectrode was increased, because the internal resistance concerned to the electron transfer in the photoelectrode of DSC was decreased. However, large amount of the Nb 2O 5 induces the decrease of the efficiency of the DSC because the surface area to attach dye molecules is decreased due to the large particle of Nb 2O5. Therefore, it is important to optimize the mixture ratio of the Nb 2O 5-TiO 2 compound for maximizing the performance of the DSC. Finally, the most optimum performance of the DSC was shown in case of the Nb 2O 5 concentration of 10 wt% of the Nb 2O 5-TiO 2 compound.",

author = "Choi, {Seok Won} and Hyunwoong Seo and Son, {Min Kyu} and Kim, {Soo Kyoung} and Hong, {Na Yeong} and Kim, {Hee Je} and Kim, {Jong Rak}",

year = "2012",

month = aug,

doi = "10.5370/KIEE.2012.61.8.1153",

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volume = "61",

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AU - Choi, Seok Won

AU - Seo, Hyunwoong

AU - Son, Min Kyu

AU - Kim, Soo Kyoung

AU - Hong, Na Yeong

AU - Kim, Hee Je

AU - Kim, Jong Rak

PY - 2012/8

Y1 - 2012/8

N2 - Niobium oxide (NbA) has a strong chemical coherence and good electrical conductivity. Therefore, this material is helpful to enhance the performance of the dye sensitized solar cells (DSC) by improving the electron mobility. In this study, Nb 2O 5 was mixed with TiO 2 and this compound was applied to the DSC to improve its performance. As a result, the current density of the DSC using the Nb 2O 5-TiO 2 compound on the photoelectrode was increased, because the internal resistance concerned to the electron transfer in the photoelectrode of DSC was decreased. However, large amount of the Nb 2O 5 induces the decrease of the efficiency of the DSC because the surface area to attach dye molecules is decreased due to the large particle of Nb 2O5. Therefore, it is important to optimize the mixture ratio of the Nb 2O 5-TiO 2 compound for maximizing the performance of the DSC. Finally, the most optimum performance of the DSC was shown in case of the Nb 2O 5 concentration of 10 wt% of the Nb 2O 5-TiO 2 compound.

AB - Niobium oxide (NbA) has a strong chemical coherence and good electrical conductivity. Therefore, this material is helpful to enhance the performance of the dye sensitized solar cells (DSC) by improving the electron mobility. In this study, Nb 2O 5 was mixed with TiO 2 and this compound was applied to the DSC to improve its performance. As a result, the current density of the DSC using the Nb 2O 5-TiO 2 compound on the photoelectrode was increased, because the internal resistance concerned to the electron transfer in the photoelectrode of DSC was decreased. However, large amount of the Nb 2O 5 induces the decrease of the efficiency of the DSC because the surface area to attach dye molecules is decreased due to the large particle of Nb 2O5. Therefore, it is important to optimize the mixture ratio of the Nb 2O 5-TiO 2 compound for maximizing the performance of the DSC. Finally, the most optimum performance of the DSC was shown in case of the Nb 2O 5 concentration of 10 wt% of the Nb 2O 5-TiO 2 compound.

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The enhancement of the performance of dye sensitized solar cells using Nb ₂O ₅-TiO ₂ compound

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