Platinum Nanoparticle Decorated Silicon Nanowires for Efficient Solar Energy Conversion
Platinum Nanoparticle Decorated Silicon Nanowires for Efficient Solar Energy Conversion
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铂纳米颗粒装饰硅纳米线用于高效太阳能转换
DOI：
10.1021/nl901734e
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发表时间：
2009-11-01
期刊：
影响因子：
10.8
通讯作者：
Lee, Shuit-Tong
中科院分区：
文献类型：
--
作者：
Peng, Kui-Qing;Wang, Xin;Lee, Shuit-Tong
采用水溶液化学刻蚀和化学镀铂工艺制备了5-10 nm铂纳米颗粒修饰的高密度定向n型硅纳米线(SiNW)阵列。在PtNP修饰的SiNW基光电化学太阳能电池中，使用含有Br2氧化还原对的液体电解液，在SiNW侧壁上涂覆PtNPs显著提高了光电转换效率，表观能量转换效率高达8.14%。结果表明，PtNP修饰的SiNW是一种很有前途的太阳能转换混合系统。
High-density aligned n-type silicon nanowire (SiNW) arrays decorated with discrete 5-10 nm platinum nanoparticles (PtNPs) have been fabricated by aqueous electroless Si etching followed by an electroless platinum deposition process. Coating of PtNPs on SiNW sidewalls yielded a substantial enhancement in photoconversion efficiency and an apparent energy conversion efficiency of up to 8.14% for the PtNP-decorated SiNW-based photoelectrochemical solar cell using a liquid electrolyte containing Br-/Br-2 redox couple. The results demonstrate PtNP-decorated SiNWs to be a promising hybrid system for solar energy conversion.