| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 봄 (04/04 ~ 04/06, 대전컨벤션센터) |
| 권호 |
43권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Doping of donor-acceptor polymers via solution mixing for organic thermoelectric devices |
| 초록 |
Organic thermoelectric materials have attracted great interest as a promising candidate for waste heat harvesting because of their advantages including material abundance, mechanical flexibility, and solution processability. Although the doping via solution mixing is preferred due to easy processability, doped polymer solutions usually lose the solubility upon doping. This has often hindered the fabrication of high quality doped polymer films, which has been an obstacle to achieving high thermoelectric performances. Here, we demonstrate organic thermoelectrics based on donor-acceptor type polymers (D-A polymers). Their shallow HOMO levels allowed efficient charge transfer with the dopant. In addition, their long alkyl chains enabled to preserve both the solubility in the solution state and the crystallinity in the thin-film state upon doping. Moreover, the planar backbones of the D-A polymers facilitated charge transport, resulting in a maximum power factor of 31.45 μW/m·K2. |
| 저자 |
서의현, 정용진, 정재민, 오종규, 양한솔, 노성훈, 장재영
|
| 소속 |
한양대 |
| 키워드 |
organic thermoelectric; D-A polymer; molecular doping; solution mixing; HOMO level; planarity; long alkyl chain
|
| E-Mail |
|
