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文：张悦 文章标题： “ Boosting bulk charge transport of CuWO 4 photoanodes via Cs doping for solar water oxidation ” 链接： https://doi.org/10.1016/j.cjsc.2023.100207 摘要内容： Copper tungstate (CuWO 4 ) is a promising photoanode for photoelectrochemical (PEC) water splitting due to its appropriate energy band position and broad light absorption range. However, the inherent unfilled 3d atomic orbital of Cu acts as a natural electron-hole recombination site, significantly constraining the PEC performance of CuWO 4 . Herein, Cs atoms with complete atomic orbitals are doped into CuWO 4 in order to obtain better bulk charge separation capability. As a result, the photocurrent of Cs@CuWO 4 increased from 0.57 to 0.99 mA cm-2compared to CuWO 4 at 1.23 V vs. reversible hydrogen electrode (RHE) under AM 1.5G illumination, as well as the bulk charge transfer efficiencies rising from 13.5% to 19.3%. In addition, density of states (DOS) calculations further prove t
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