| 학회 |
한국재료학회 |
| 학술대회 |
2017년 봄 (05/17 ~ 05/19, 목포 현대호텔) |
| 권호 |
23권 1호 |
| 발표분야 |
8. 태양광 물분해 광전극 및 광촉매(Photoelectrode and photocatalyst materials for solar water splitting) |
| 제목 |
BiVO4/ZnO Nanorod Heterosturcture Decorated with Au Nanoparticles for Efficient Photoelectrochemical Water Splitting. |
| 초록 |
Since there is an intense potential to convert solar light directly into chemical fuels, much research has been done on photoelectrochemical (PEC) cells for the generation of renewable energy. Bismuth vanadate (BiVO4) material has been reported to promising material because of its low band gap of 2.4 eV, and is a light absorber to adjust photodetector. In spite of having many advantages, this material has limitations including slow charge transport, substantial recombination of electron–hole pair. Recently, BiVO4 nanoparticles decorated zinc oxide (ZnO) nanowires heterojunction has been demonstrated to increase electron conductivity. In this work, we fabricated BiVO4/ZnO nanowire core-shell heterostructure decorated with Au nanoparticles. The nanostructural morphology formation and plasmonic effect led to a photocurrent density of 1.83 mA/cm2 at 1.23 V RHE, which is higher three times than that of pristine BiVO4 film. The enhanced performance is attributed to the charge transport ability of ZnO nanowire and the plasmonic effects of Au nanoparticles. |
| 저자 |
Seungkyu Kim1, Yejong Yu2, Sang Yun Jeong1, Yeongmin Kwon2, Jeongmin Baik1, Sanghan Lee2
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| 소속 |
1School of Materials Science and Engineering, 2Gwangju Institute of Science and Technology (GIST) |
| 키워드 |
Bismuth vanadate (BiVO<SUB>4</SUB>); Zinc oxide (ZnO) nanowire; Au nanoparticle; Core-shell; Heterostructure; Water splitting; Photoanode
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| E-Mail |
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