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A comparative study of Be and Mg ions adsorbed on TiO2 photoelectrodes on interfacial charge recombination in solar cells

Title
A comparative study of Be and Mg ions adsorbed on TiO2 photoelectrodes on interfacial charge recombination in solar cells
Author(s)
Shin, Dong-WonKang, Jin-KyuKim, Dae-HwanHan, Yoon Soo
DGIST Authors
Kang, Jin-KyuKim, Dae-Hwan
Issued Date
2018-09
Type
Article
Article Type
Article
Author Keywords
Beryllium ionMagnesium ionSurface modificationDye-sensitized solar cellCharge recombination
Keywords
SENSITIZED NANOCRYSTALLINE TIO2CONVERSION EFFICIENCYSURFACE MODIFICATIONPHOTOVOLTAIC CELLSELECTRON-TRANSFERSCATTERING LAYERHIGH-PERFORMANCEFILMSNANOPARTICLESIMPROVEMENT
ISSN
1226-086X
Abstract
Be2+ and Mg2+ ions were adsorbed on a TiO2 surface, and the resulting photoelectrodes were applied in dye-sensitized solar cells. Be2+ modification led to an increase in electron collection, electron injection, and dye regeneration efficiency, thereby increasing the short-circuit current. It was also found that the enhancements in both open-circuit voltage and fill factor of the device with Be2+-modified TiO2 were due to the reduced charge recombination between the photoinjected electrons and I3 −. Be2+ modification resulted in an approximately 14% improvement in power conversion efficiency, whereas charge recombination was barely reduced in the case of Mg2+ modification. © 2018 The Korean Society of Industrial and Engineering Chemistry
URI
http://hdl.handle.net/20.500.11750/6409
DOI
10.1016/j.jiec.2018.04.028
Publisher
Korean Society of Industrial Engineering Chemistry
Related Researcher
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Appears in Collections:
Convergence Research Center for Solar Energy 1. Journal Articles

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