| 학회 | 한국고분자학회 |
| 학술대회 | 2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 | 46권 2호 |
| 발표분야 | 분자전자 부문위원회 Ⅰ,Ⅱ |
| 제목 | Relationship between Doping efficiency and Spatial Distribution of Molecular Dopants in Highly Doped Conducting Polymers |
| 초록 | In this work, we demonstrated that the spatial distribution of molecular dopants within highly-doped conducting polymer films affects thermoelectric (TE) properties of the films. Poly (2,5-bis (3-hexadecylthiophen-2-yl) thieno [3,2-b] thiophene) (PBTTT-C14) films were p-doped by 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4TCNQ). Different doping methods distributed dopants in amorphous or crystalline domains, or both, of the PBTTT-C14 film. F4TCNQ molecules in the crystalline domain induced a rapid increase in the thermoelectric power factor of σS2 ∝ σ0.76 where σ is the electrical conductivity and S is the Seebeck coefficient. We believe that such systematic studies on the structural relation between dopants and conducting polymer chains in highly doped conducting polymers will provide guidelines for designing high-performance organic TE materials. |
| 저자 | 민지우 , 김대건 , 조길원 |
| 소속 | 포항공과대 |
| 키워드 | organic thermoelectrics ; molecular doping |
