Improved visible light driven photoelectrochemical properties of 3C-SiC semiconductor with Pt nanoparticles for hydrogen generation

被引：25

作者：

Song, Jun Tae ^{[1
]}

Mashiko, Hisanori ^{[2
]}

Kamiya, Masayuki ^{[1
]}

Nakamine, Yoshifumi ^{[3
]}

Ohtomo, Akira ^{[2
]}

Iwasaki, Takayuki ^{[1
]}

Hatano, Mutsuko ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, Tokyo 1528552, Japan

[2] Tokyo Inst Technol, Dept Appl Chem, Meguro Ku, Tokyo 1528552, Japan

[3] Tokyo Inst Technol, Program Leading Grad Sch, Acad Cocreat Educ Environm & Energy Sci, Meguro Ku, Tokyo 1528552, Japan

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 21期

关键词：

WATER; PHOTOELECTROLYSIS; ARRAYS;

D O I：

10.1063/1.4832333

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We propose the n-type 3C-SiC with Pt nanoparticles (Pt NPs) as photo-anode for photoelectrochemical hydrogen (H-2) generation. We found that band-edge structure of 3C-SiC is suitable for H-2 generation, and the property can be optimized by dopant (nitrogen) concentration in 3C-SiC. We also confirmed that Pt NPs enhance photoelectrochemical properties showing 0.2%-0.8% higher Incident Photon-to-Current Efficiency than bare 3C-SiC in visible wavelength despite diminished light absorption. Solar-conversion efficiency increases approximately 6.3 times, and H-2 production is improved by 6.5 times with 33% of Faradaic efficiency. Lastly, 3C-SiC surface corrosion is effectively inhibited. (C) 2013 AIP Publishing LLC.

引用

页数：4

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