| 학회 |
한국공업화학회 |
| 학술대회 |
2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 |
24권 1호 |
| 발표분야 |
포스터-무기재료 |
| 제목 |
Plasmon and Upconversion Photoresponse in Decorated TiO2 Inverse Opal Nanostructures with Enhanced Photoelectrochemical Water Splitting Performance |
| 초록 |
To harvest low energy photons, we investigated a 3D composite photoanode integrating visible-responsive plasmonic Au nanoparticles and NIR-responsive upconversion nanocrystals (UCN) into 3D TiO2 inverse-opals (Au/UCN/TiO2) with extended solar energy utilization in the UV-vis-NIR range for photoelectrochemical (PEC) water splitting platforms. The NIR-responsive properties of NaYF4:Yb3+ UCN nanocrystals doped with Er3+ or Tm3+ ions, and the effect of an alternating sequential introduction of UCN and Au were also investigated. Our Au/Er-UCN/TiO2 hybrid revealed a 10-fold photocurrent density enhancement under UV-vis-NIR against the pristine TiO2. |
| 저자 |
Filipe Marques Mota1, Ramireddy Boppella1, Keiji Tanaka2, 김동하1
|
| 소속 |
1Ewha Womans Univ., 2Kyushu Univ. |
| 키워드 |
Plasmon; Upconversion; Water Splitting
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| E-Mail |
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