Liu Qing, Shi Jiang, Xu Zhenzhu, Zhang Bolin, Liu Hongliang, Lin Yinlei, Gao Fangliang, Li Shuti, Li Guoqiang
Guangdong Engineering Research Center of Optoelectronic Functional Materials and Devices, Institute of Semiconductors, South China Normal University, Guangzhou 510631, China.
State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China.
Nanomaterials (Basel). 2020 May 9;10(5):912. doi: 10.3390/nano10050912.
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.
光电化学（PEC）水分解在将太阳能转化为氢能方面具有巨大的应用潜力。然而，该技术实际应用的障碍是转换效率低，通过优化材料结构和进行表面功能化的器件设计可以提高转换效率。在这项工作中，我们通过化学溶剂法在氮化铟镓（InGaN）纳米棒（NR）阵列表面沉积了不同负载密度的金纳米颗粒（Au NPs），以获得复合PEC水分解系统。由Au NPs诱导的表面等离子体共振（SPR）效应可证明发生了增强的光催化活性，并且进一步证实其与Au NPs的不同负载密度有关。这些发现以太阳能水分解为平台，为探索SPR增强机制提供了思路。
