| 학회 |
한국고분자학회 |
| 학술대회 |
2022년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
47권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Semiconducting polymers as promising materials for photoelectrochemical water splitting |
| 초록 |
We present high-performance and robust organic photoelectrochemical cells (OPECs) by employing a bulk heterojunction (BHJ) blend of semiconducting polymers as a photoactive layer. Our in-depth study using sacrificial agents for photoreduction and photooxidation unveils critical parameters that significantly affect the performance and operational stability of OPECs: (i) rational selection of semiconducting polymer donor and acceptor to generate free charges efficiently and ensure chemical stability upon illumination, (ii) large surface roughness of interlayers to improve interfacial adhesion, and (iii) mitigation of charge accumulation at the interfaces. By leveraging these insights, our optimized polymer BHJ photocathode and photoanode where the polymer BHJ layers are coupled with hydrogen and oxygen evolution catalysts, respectively, show outstanding performance and unprecedented robustness compared to previous OPECs, demonstrating a new benchmark of OPECs for solar fuel production. |
| 저자 |
조한희1, Dan Zhang2, Liang Yao3, Kevin Sivula4
|
| 소속 |
1UNIST, 2Institute of Chemical Sciences and Engineering, 3École polytechnique fédérale de Lausanne (EPFL), 4Max Planck Institute for Solid State Research |
| 키워드 |
Semiconducting polymer; bulkheterojunction; photoelectrochemical cell
|
| E-Mail |
|
