| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 봄 (05/01 ~ 05/03, 부산 벡스코(BEXCO)) |
| 권호 |
23권 1호 |
| 발표분야 |
고분자_포스터 |
| 제목 |
UV/Vis/NIR absorption spectroscopic investigation of electrolyte-gated thin films of polymer semiconductors |
| 초록 |
Electrochemical processes of organic and polymer semiconductors under applied voltages tune the charge-carrier density of the materials and change their electronic structures. We investigate the in-situ UV/Vis/NIR absorption characteristics of various p-type polymer semiconductors under electrolyte gating. By using the widely studied ion-gel electrolyte systems based on existing P(VDF-HFP) and [EMIM][TFSI], we are able to detect the characteristic changes of various polymers including poly(3-hexylthiophene) (P3HT) and poly[2,5-bis(3-tetradecylthiophen-2-yl)thieno[3,2-b]thiophene] (PBTTT). Electrochemical doping of polymer semiconductors induces the decrease in the neutral π-π* excitation peaks and increase in the polaron peaks. We also show that the spectroscopic changes of polymer semiconductors through the electrochemical doping processes in the electrolyte-gating system are closely related to their charge transport properties in thin film states. |
| 저자 |
나예나, 김선주
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| 소속 |
중앙대 |
| 키워드 |
UV/Vis/NIR absorption spectroscopy; electrochemical doping; electrolyte-gating; ion gel
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| E-Mail |
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