光电流
分解水
钙钛矿(结构)
材料科学
卤化物
可扩展性
缩放比例
纳米技术
光电子学
电阻式触摸屏
计算机科学
化学工程
化学
无机化学
光催化
催化作用
工程类
数学
数据库
生物化学
计算机视觉
几何学
作者
Ho Jin Choi,Sehun Seo,Chang Jae Yoon,Jae-Hwan Ahn,Chan-Sol Kim,Yoonsung Jung,Yejoon Kim,Francesca M. Toma,Heejoo Kim,Sanghan Lee
标识
DOI:10.1002/advs.202303106
摘要
Abstract Despite achievements in the remarkable photoelectrochemical (PEC) performance of photoelectrodes based on organometal halide perovskites (OHPs), the scaling up of small‐scale OHP‐based PEC systems to large‐scale systems remains a great challenge for their practical application in solar water splitting. Significant resistive losses and intrinsic defects are major obstacles to the scaling up of OHP‐based PEC systems, leading to the PEC performance degradation of large‐scale OHP photoelectrodes. Herein, a scalable design of the OHP‐based PEC systems by modularization of the optimized OHP photoelectrodes exhibiting a high solar‐to‐hydrogen conversion efficiency of 10.4% is suggested. As a proof‐of‐concept, the OHP‐based PEC module achieves an optimal PEC performance by avoiding major obstacles in the scaling up of the OHP photoelectrodes. The constructed OHP module is composed of a total of 16 OHP photoelectrodes, and a photocurrent of 11.52 mA is achieved under natural sunlight without external bias. The successful operation of unassisted solar water splitting using the OHP module without external bias can provide insights into the design of scalable OHP‐based PEC systems for future practical application and commercialization.
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