| 학회 |
한국공업화학회 |
| 학술대회 |
2018년 봄 (05/02 ~ 05/04, 대구 엑스코(EXCO)) |
| 권호 |
22권 1호 |
| 발표분야 |
에너지저장변환_포스터 |
| 제목 |
Enhanced power conversion efficiency of ZnO-based solar cells by increasing amount of dye adsorption using electrophoretic method |
| 초록 |
Zinc oxide (ZnO) has a band gap energy of 3.3 eV, which is similar to that of TiO2 used as a n-type semiconductor in solar cells, and has higher electron mobility than TiO2. Thus, ZnO film can act as the n-type semiconductor in solar cells. However, ZnO-based solar cells suffer from low power conversion efficiency, because Zn2+/dye complex is formed during prolonged sensitization process. The complex could hinder electron injection from excited dye to ZnO. In this study, electrophoretic technique was applied to increase dye-loading amount in a short sensitization time. The dye-loading amount by electrophoretic method for 20 min was increased by 2.18x10-5mol/cm3, compared to that (1.56x10-5mol/cm3) by conventional soaking process for the same time. This led to an increase in power conversion efficiency of ZnO-based solar cells. |
| 저자 |
박성주1, 백건욱1, 류경범1, 황태원1, 이상주2, 한윤수1
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| 소속 |
1대구가톨릭대, 2대구경북과학기술원 |
| 키워드 |
Solar cell; ZnO; electrophoretic deposition; dye-loading amount
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| E-Mail |
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