Increased power conversion efficiency of dye-sensitized solar cells with surface-modified photoelectrode

Ju Hee Oh; Giseop Kwak; Kang Bae; Myung Gyu Choi; Chang Hyun Lee; Hwa Min Kim; Yoon Soo Han

doi:10.1080/15421406.2015.1076319

Increased power conversion efficiency of dye-sensitized solar cells with surface-modified photoelectrode

Ju Hee Oh, Giseop Kwak, Kang Bae, Myung Gyu Choi, Chang Hyun Lee, Hwa Min Kim, Yoon Soo Han

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

Abstract

A nanoporous TiO₂ film was modified with an aqueous potassium chloride (KCl), and the resulting film was applied to the photoelectrode of dye-sensitizes solar cell (DSSC). The DSSC with KCl-modified photoelctrode showed an increase in short circuit current (Js_c) and open circuit voltage (Vo_c), resulting in a power conversion efficiency (PCE) of 7.04%, compared to that (6.36%) of reference device with bare TiO₂. The suppression of charge recombination between photo-injected electrons and triiodide (I₃^-) ions was found to increase both Js_c and Vo_c of the device with KCl-modified photoelctrode.

Original language	English
Pages (from-to)	171-178
Number of pages	8
Journal	Molecular Crystals and Liquid Crystals
Volume	617
Issue number	1
DOIs	https://doi.org/10.1080/15421406.2015.1076319
State	Published - 13 Aug 2015

Keywords

dye-sensitized solar cell
photoelectrode
potassium chloride
recombination

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abstract = "A nanoporous TiO2 film was modified with an aqueous potassium chloride (KCl), and the resulting film was applied to the photoelectrode of dye-sensitizes solar cell (DSSC). The DSSC with KCl-modified photoelctrode showed an increase in short circuit current (Jsc) and open circuit voltage (Voc), resulting in a power conversion efficiency (PCE) of 7.04%, compared to that (6.36%) of reference device with bare TiO2. The suppression of charge recombination between photo-injected electrons and triiodide (I3-) ions was found to increase both Jsc and Voc of the device with KCl-modified photoelctrode.",

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T1 - Increased power conversion efficiency of dye-sensitized solar cells with surface-modified photoelectrode

AU - Oh, Ju Hee

AU - Kwak, Giseop

AU - Bae, Kang

AU - Choi, Myung Gyu

AU - Lee, Chang Hyun

AU - Kim, Hwa Min

AU - Han, Yoon Soo

PY - 2015/8/13

Y1 - 2015/8/13

N2 - A nanoporous TiO2 film was modified with an aqueous potassium chloride (KCl), and the resulting film was applied to the photoelectrode of dye-sensitizes solar cell (DSSC). The DSSC with KCl-modified photoelctrode showed an increase in short circuit current (Jsc) and open circuit voltage (Voc), resulting in a power conversion efficiency (PCE) of 7.04%, compared to that (6.36%) of reference device with bare TiO2. The suppression of charge recombination between photo-injected electrons and triiodide (I3-) ions was found to increase both Jsc and Voc of the device with KCl-modified photoelctrode.

AB - A nanoporous TiO2 film was modified with an aqueous potassium chloride (KCl), and the resulting film was applied to the photoelectrode of dye-sensitizes solar cell (DSSC). The DSSC with KCl-modified photoelctrode showed an increase in short circuit current (Jsc) and open circuit voltage (Voc), resulting in a power conversion efficiency (PCE) of 7.04%, compared to that (6.36%) of reference device with bare TiO2. The suppression of charge recombination between photo-injected electrons and triiodide (I3-) ions was found to increase both Jsc and Voc of the device with KCl-modified photoelctrode.

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Increased power conversion efficiency of dye-sensitized solar cells with surface-modified photoelectrode

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