| 학회 |
한국공업화학회 |
| 학술대회 |
2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center)) |
| 권호 |
21권 1호 |
| 발표분야 |
전기화학 |
| 제목 |
Blocking Layers at Photocathode Interfaces: Enhanced Efficiency in Cobalt-Mediated Tandem Dye-Sensitized Solar Cells |
| 초록 |
The photovoltaic performance of tandem pn-dye-sensitized solar cells (pn-DSCs) has been limited by the poor performance of the available p-DSCs. A simplistic method of introducing a compact NiO blocking layer into a poor performing photocathode network of p-DSCs and pn-DSCs is presented to improve the photovoltaic performance using a cobalt-based redox mediator. The NiO blocking layer prepared via a simple spin-coating method using a nickel acetate precursor solution. For the photoelectrodes, we have selected well known SQ and P1 dyes for n-DSC and p-DSC, respectively, which showed a complementary nature in absorbing solar irradiation at different wavelengths. The fabricated tandem device showed an increased photovoltage compared to n-DSC, resulting in an overall photovoltaic performance of 1.486%. This performance is further improved to 1.913% by the introduction of an optimized NiO blocking layer to the photocathode. |
| 저자 |
조정민, Phuong Ho, Suresh Thogiti, Rajesh Cheruku, 안광순, 김재홍
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| 소속 |
영남대 |
| 키워드 |
Tandem dye-sensitized solar cells; photocathode; photoanode; blocking layer
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| E-Mail |
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