Department of Chemical System Engineering, The University of Tokyo, Bunkyo-ku, Japan.
Adv Mater. 2013 Jan 4;25(1):125-31. doi: 10.1002/adma.201202582. Epub 2012 Sep 18.
A vertically aligned Ta(3)N(5) nanorod photoelectrode is fabricated by through-mask anodization and nitridation for water splitting. The Ta(3)N(5) nanorods, working as photoanodes of a photoelectrochemical cell, yield a high photocurrent density of 3.8 mA cm(-2) at 1.23 V versus a reversible hydrogen electrode under AM 1.5G simulated sunlight and an incident photon-to-current conversion efficiency of 41.3% at 440 nm, one of the highest activities reported for photoanodes so far.
通过掩膜阳极氧化和氮化制备了垂直排列的 Ta(3)N(5)纳米棒光电电极，用于水分解。作为光电化学电池的光阳极，Ta(3)N(5)纳米棒在 AM 1.5G 模拟太阳光下 1.23 V 相对于可逆氢电极产生 3.8 mA cm(-2)的高光电流密度，在 440nm 处的光生电流转换效率为 41.3%，这是迄今为止报道的光阳极中最高的活性之一。
