| 학회 |
한국공업화학회 |
| 학술대회 |
2014년 가을 (11/12 ~ 11/14, 엑스코(대구)) |
| 권호 |
18권 2호 |
| 발표분야 |
(에너지저장변환)차세대 태양전지 기술의 최신 동향 |
| 제목 |
Several Strategies Toward Zero Electron Loss in Organic Based Photocells |
| 초록 |
The properties of interfaces between organic and inorganic materials in heterojunctions are relevant to a variety of electronic applications. The performances of such devices strongly depend on the kinetics of the charge transfer reactions and the thermodynamic properties at the heterogeneous interfaces. Heterogeneous interfaces can be controlled by modifying the interfacial properties to improve the photovoltaic performance. After electron injection into the conduction band (CB) from a dye excited by photon absorption, an electron relaxes to the lowest energy level of the CB and is subsequently trapped in the intra-band states. Trapping then increases the electron collection time through the TiO2 particles. The photoinduced electrons in the trap states can recombine with cationic species. These recombination reactions are rapid if many trap states in the lower-lying quasi-Fermi level. In this talk, I present how to control such recombination reactions in a molecular levels toward zero electron loss in organic based photocells. |
| 저자 |
박태호, 송인영, 임종철, 최종민
|
| 소속 |
포항공과대 |
| 키워드 |
electron loss; recombination; solar cell; Fermi level; life time
|
| E-Mail |
|
