| 학회 |
한국고분자학회 |
| 학술대회 |
2016년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
41권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Naphthalene Diimide and Fluorene based Interfacial Modifier for the Efficient Inverted-type Polymer Solar Cells |
| 초록 |
We have designed and synthesized the cationic conjugated polyelectrolyte (PFTNDI) containing electron accepting naphthalene diimide moiety to improve the better surface properties of ZnO layer in the inverted polymer solar cells (PSCs). After PFTNDI treatment on the ZnO surface, the uniformity and hydrophobicity of the surface was significantly enhanced, resulting in highly reduced surface tension. In addition, the permanent interfacial dipole at the interface of ZnO and PFTNDI induce a shift t in the vacuum level, leading to the reduced WF of ZnO layer. The inverted devices with the configuration of ITO/ZnO/PFTNDI/PTB7-Th:PC71BM/MoO3/Ag were fabricated and the photovoltaic properties were investigated. The reduced WF of ZnO film resulted in slightly increased Voc values and highly reduced contact resistance. Combined with reduced surface tension, PFTNDI-treated devices exhibited much higher power conversion efficiency of 8.65% than bare ZnO devices (7.99%). |
| 저자 |
남소연1, 최은영1, 송창은2, 이창진1, 정인환1, 윤성철1
|
| 소속 |
1한국화학(연), 2과학기술연합대 |
| 키워드 |
naphthalene diimide; polyelectrolyte; interfacial modifier; inverted-type polymer solar cells
|
| E-Mail |
|
