InGaN Nanorods Decorated with Au Nanoparticles for Enhanced Water Splitting Based on Surface Plasmon Resonance Effects
Qing Liu,
Jiang Shi,
Zhenzhu Xu,
Bolin Zhang,
Hongliang Liu,
Yinlei Lin,
Fangliang Gao,
Shuti Li,
Guoqiang Li
Affiliations
Qing Liu
Guangdong Engineering Research Center of Optoelectronic Functional Materials and Devices, Institute of Semiconductors, South China Normal University, Guangzhou 510631, China
Jiang Shi
Guangdong Engineering Research Center of Optoelectronic Functional Materials and Devices, Institute of Semiconductors, South China Normal University, Guangzhou 510631, China
Zhenzhu Xu
State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
Bolin Zhang
Guangdong Engineering Research Center of Optoelectronic Functional Materials and Devices, Institute of Semiconductors, South China Normal University, Guangzhou 510631, China
Hongliang Liu
Guangdong Engineering Research Center of Optoelectronic Functional Materials and Devices, Institute of Semiconductors, South China Normal University, Guangzhou 510631, China
Yinlei Lin
School of Materials Science and Energy Engineering, Foshan University, Foshan 528000, China
Fangliang Gao
Guangdong Engineering Research Center of Optoelectronic Functional Materials and Devices, Institute of Semiconductors, South China Normal University, Guangzhou 510631, China
Shuti Li
Guangdong Engineering Research Center of Optoelectronic Functional Materials and Devices, Institute of Semiconductors, South China Normal University, Guangzhou 510631, China
Guoqiang Li
State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
Photoelectrochemical (PEC) water splitting has great application potential in converting solar energy into hydrogen energy. However, what stands in the way of the practical application of this technology is the low conversion efficiency, which can be promoted by optimizing the material structure and device design for surface functionalization. In this work, we deposited gold nanoparticles (Au NPs) with different loading densities on the surface of InGaN nanorod (NR) arrays through a chemical solvent route to obtain a composite PEC water splitting system. Enhanced photocatalytic activity, which can be demonstrated by the surface plasmon resonance (SPR) effect induced by Au NPs, occurred and was further confirmed to be associated with the different loading densities of Au NPs. These discoveries use solar water splitting as a platform and provide ideas for exploring the mechanism of SPR enhancement.