Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland.
Nanoscale. 2012 Mar 7;4(5):1553-6. doi: 10.1039/c2nr11573e. Epub 2012 Jan 30.
Nanostructuring of semiconductor films offers the potential means for producing photoelectrodes with improved minority charge carrier collection. Crucial to the effective operation of the photoelectrode is also the choice of a suitable electrolyte. The behaviour of the nanostructured WO(3) photoanodes in methane sulfonic acid solutions, which allow one to obtain large, perfectly stable visible-light driven water splitting photocurrents, is discussed. The important effect of the electrolyte concentration upon the current distribution and the related photocurrent losses within the nanoporous photoelectrodes is pointed out.
半导体薄膜的纳米结构化提供了改善少数载流子收集的光电管的潜在手段。对于光电管的有效运行至关重要的还有选择合适的电解质。本文讨论了在甲烷磺酸溶液中纳米结构 WO(3)光阳极的行为，该溶液允许获得大的、完全稳定的可见光驱动水分解光电流。指出了电解质浓度对电流分布的重要影响以及相关的纳米多孔光电管中的光电流损失。
