Photoanode Thickness Optimization and Impedance Spectroscopic Analysis of Dye-Sensitized Solar Cells based on a Carbazole-Containing Ruthenium Dye
- Authors
- Choi, Jongwan; Kim, Felix Sunjoo
- Issue Date
- Mar-2018
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- Dye-sensitized solar cells; Photoanode thickness; Ruthenium dye; Impedance spectroscopy
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.72, no.5, pp 639 - 644
- Pages
- 6
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 72
- Number
- 5
- Start Page
- 639
- End Page
- 644
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/1131
- DOI
- 10.3938/jkps.72.639
- ISSN
- 0374-4884
1976-8524
- Abstract
- We studied the influence of photoanode thickness on the photovoltaic characteristics and impedance responses of the dye-sensitized solar cells based on a ruthenium dye containing a hexyloxyl-substituted carbazole unit (Ru-HCz). As the thickness of photoanode increases from 4.2 mu m to 14.8 mu m, the dye-loading amount and the efficiency increase. The device with thicker photoanode shows a decrease in the efficiency due to the higher probability of recombination of electron-hole pairs before charge extraction. We also analyzed the electron-transfer and recombination characteristics as a function of photoanode thickness through detailed electrochemical impedance spectroscopy analysis.
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Collections - College of Engineering > School of Chemical Engineering and Material Science > 1. Journal Articles
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