PHOTOVOLTAIC PROPERTIES OFTiO2PHOTOELECTRODE PREPARED BY USING LIQUID PEG-EEM BINDER

En Mei Jin, Kyung-Hee Park, Je-Jung Yun, Chang Kook Hong, Min-Jin Hwang, Bok-Kee Park, Ki-Won Kim and Hal-Bon Gu
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En Mei Jin: Department of Electrical Engineering, Chonnam National University, 300 Yongbon-dong, Buk-gu, Gwangju 500-757, South Korea
Kyung-Hee Park: Department of Electrical Engineering, Chonnam National University, 300 Yongbon-dong, Buk-gu, Gwangju 500-757, South Korea
Je-Jung Yun: Jeonnam Nano Bio Center, 1063-50 Yeongcheon-ri, Jangseong-gun, Jeollanam-do 515-806, South Korea
Chang Kook Hong: Center for Functional Nano Fine Chemicals, Chonnam National University, Gwangju 500-757, Republic of Korea
Min-Jin Hwang: Center for Functional Nano Fine Chemicals, Chonnam National University, Gwangju 500-757, Republic of Korea
Bok-Kee Park: Department of Electrical Engineering, Howon National University, South Korea
Ki-Won Kim: ITRC for Energy Storage and Conversion, Gyeongsang National University, Jinju 660-701, South Korea
Hal-Bon Gu: Department of Electrical Engineering, Chonnam National University, 300 Yongbon-dong, Buk-gu, Gwangju 500-757, South Korea

Surface Review and Letters (SRL), 2010, vol. 17, issue 01, 15-20

Abstract: We present one of the central and basic factors related to theTiO2photoanodes of optimal absorption site. Binder is of particular importance for surfaces and interfaces that involve organic dye andTiO2layer. We introduced monodispersed liquid copolymer binders; poly(ethylene glycol)-ethyl ether methacrylate (PEG-EEM) instead of solid PEG to increaseTiO2electrode's surface area. We attempt to investigate the morphology of the photoanodes and photovoltaic effects using field emission scanning electron microscopy (FE-SEM), BET and photovoltaic properties under illumination with AM 1.5 simulated sunlight. We achieve 167% enhanced power conversion efficiency when the optimal content of liquid PEG-EEM binder was 4 wt.% than that of PEG binder. We show that the performance of Dye-sensitized solar cell (DSSC) can be strongly improved using liquid type binder.

Keywords: Dye-sensitized solar cell; photocurrent-voltage; TiO2; binder; surface area (search for similar items in EconPapers)
Date: 2010
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DOI: 10.1142/S0218625X10013576

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