| 학회 |
한국공업화학회 |
| 학술대회 |
2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 |
24권 1호 |
| 발표분야 |
포스터-에너지저장·변환 |
| 제목 |
Improvement in power conversion efficiency of dye-sensitized solar cells with sodium sulfide-modified photoanodes |
| 초록 |
TiO2 films on transparent electrodes were modified with an aqueous sodium sulfide solution, and the resulting films were applied to photoanodes of dye-sensitized solar cells (DSSCs). The sodium sulfide modification by a simple dipping method enhanced the power conversion efficiency of DSSC, mainly due to an improvement in the open-circuit voltage (Voc). By monitoring UV-visible absorbance spectra, UPS valence band spectra and dark currents, we could attribute the increase in the Voc to a negative shift of TiO2 conduction band edge, resulting from the formation of anions on the TiO2 surface by the modification. *Acknowledgements: This work is financially supported by the Ministry of Education, Science and Technology (MEST) through the fostering project of Industrial Complex Campus. |
| 저자 |
이연주1, 성혜경2, 서종성3, 이도경1, 한윤수1
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| 소속 |
1대구가톨릭대, 2부산대, 3(주)솔라팜 |
| 키워드 |
dye-sensitized solar cell; surface modification; sodium sulfide; negative shift of conduction band edge.
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| E-Mail |
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