| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 봄 (05/12 ~ 05/14, 부산 벡스코(BEXCO)) |
| 권호 |
25권 1호 |
| 발표분야 |
포스터-에너지저장·변환 |
| 제목 |
Electrochemically Controlled Dual Core-Shell Heterostructure of CdS@CdSe Nanoparticles on ITO@TiO2 Nanowire with Tailored Cascade Charge Migration for Enhanced Photoelectrochemical Hydrogen Production |
| 초록 |
Here, we report a novel dual heterostructured photoanode consisted of CdS@CdSe core-shell nanoparticles and 1D-structured tin-doped indium oxide (ITO)@TiO2 core-shell nanowires for highly efficient photoelectrochemical hydrogen production. The finely controlled hierarchical CdS@CdSe sensitization from a consecutive electrochemical deposition on the ITO@TiO2 nanowire induces cascade charge migration throughout the aligned energy band edges with the rapid charge extraction through the hierarchical heterostructure of ITO@TiO2@CdS@CdSe, alleviating the crucial charge accumulation. As a result, the dual heterostructured photoanode exhibits up to maximum photocurrent density of 20.11 mA/cm2 at 1.23 V vs RHE and the dramatic enhancement in incident photon-to-current efficiency over extended absorption spectrum. |
| 저자 |
조윤준, 김광희, 박종혁
|
| 소속 |
연세대 |
| 키워드 |
dual heterostructure; core-shell; cascade charge transport; hydrogen production
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| E-Mail |
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