| 학회 |
한국공업화학회 |
| 학술대회 |
2014년 가을 (11/12 ~ 11/14, 엑스코(대구)) |
| 권호 |
18권 2호 |
| 발표분야 |
에너지저장변환-포스터 |
| 제목 |
Structural planarity and conjugation effects of novel bi-carbazole derivatives organic dyes for dye-sensitized solar cells |
| 초록 |
Dye-sensitized solar cells based on Ru-complexes have been achieved fairly high solar energy-to-conversion efficiencies above 12%. Recently, organic dye molecules have been employed as promising alternatives to the Ru-complexes because of potential advantages (high molar extinction coefficient, customized molecular design) for photophysical and photochemical properties, as well as low-cost production. In this work, we demonstrate the synthesis of organic photosensitizing dyes with varying carbazole-based chromophores in a molecule, and used as sensitizers for dye-sensitized solar cells (DSSCs). We found that organic dye with thiophene units exhibited a higher molar extinction coefficient and red-shifted absorption, which leads to an improved light harvesting efficiency. Their photovoltaic properties were measured I-V curves, incident photon-to-current (IPCE) efficiencies and impedance analysis by comparison with that of ruthenium dye in same manufacturing condition. |
| 저자 |
조효정1, 남정은2, 김대환2, 김효정2, 강진규2
|
| 소속 |
1대구경북과학기술원(DGIST), 2대구경북과학기술원 |
| 키워드 |
di-carbazole dye; DSSC
|
| E-Mail |
|
