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Enhanced Conversion Efficiency of Dye-Sensitized Solar Cells by Optimization of Photoanode Modification Process

Title
Enhanced Conversion Efficiency of Dye-Sensitized Solar Cells by Optimization of Photoanode Modification Process
Authors
Kim, JT[Kim, Jong Tae]Kang, CS[Kang, Cheon Su]Han, YS[Han, Yoon Soo]
DGIST Authors
Kim, JT[Kim, Jong Tae]
Issue Date
2013-12
Citation
Journal of Nanoelectronics and Optoelectronics, 8(6), 519-524
Type
Article
Article Type
Article
Keywords
Dye-Sensitized Solar CellLiOHSurface ModificationTiO2 Photoanode
ISSN
1555-130X
Abstract
Surface modification of nanoporous TiO2 photoanodes was conducted by simple dipping process using aqueous lithium hydroxide (LiOH) solution at varied temperatures and dipping time, and the modified photoanodes were applied to dye-sensitized solar cells (DSSCs). By the optimization of surface-modification temperature (40 °C) and time (10 min), DSSC with LiOH-modified TiO2 layer showed a considerable improvement (8.19%) of about 20% in power conversion efficiency due to an enhanced open circuit voltage and a fill factor, compared to that (6.85%) of reference device with bare TiO2 layer. The enhancement was mainly attributed to negative shifts of conduction band edges of TiO2 by LiOH modification. Copyright © 2013 American Scientific Publishers.
URI
http://hdl.handle.net/20.500.11750/3172
DOI
10.1166/jno.2013.1518
Publisher
American Scientific Publishers
Files:
There are no files associated with this item.
Collection:
Division of Nano∙Energy Convergence Research1. Journal Articles


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