High Performance Ferroelectric‐modulated Photoelectrodes by Using Grid Charge Collector

• DOI: 10.1002/adfm.202316409
• Publication Date: 2024-03-22T13:25:02Z
• Authors: Jialin Shao; Huiya Liu; Xiao Jiang; Yujie Wang; Lili Luo; Yingtao Li; Zemin Zhang; Bingan Lu
• Keywords: Photocathode; Charge carrier; Multiphysics

Abstract Metal oxide‐based photoelectrochemicals (PEC) are promising for solar‐fuel conversion if the issues of excessive charge carrier recombination in bulk can be resolved. Ferroelectric modulation photoelectrodes is a remedial strategy but less available due to contradiction between screening effect and free collection. This work designed fabricated novel ferroelectric‐modulated photocathode (p‐type CuBi 2 O 4 /PbZrTiO, CBO/PZT) with gird‐like gold (G‐Au) collector under theoretical guidance. Several characterizations, including Multiphysics simulations optoelectronic interfacial electronic energy levels calculations, proved critical role G‐Au decoupling collecting screening. As result, positively polarized exhibited best performance an average H concentration around 1.5 mol (L h m ) −1 . Thus, this demonstrated successful integration ferroelectric PEC improved photocarrier collection using grid metal collector, which broadly applied other systems.