期刊
ADVANCED ENERGY MATERIALS
卷 8, 期 22, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201800795
关键词
hydrogen evolution; perovskite; photocathodes; photoelectrochemical; water splitting
类别
资金
- National Key R&D Program of China [2017YFA0204804]
- National Natural Science Foundation of China [21573219]
- DICP [DICP ZZBS201704]
- Strategic Priority Research Program of Chinese Academy of Sciences [XDB17000000]
- Young Thousand Talents Program of China
Organolead halide perovskite materials have demonstrated great potential in the solar cells field owing to their excellent optoelectronic properties. However, the instability issue of the perovskites impedes the translation of their attractive features for the solar fuel production such as photoelectrochemical H-2 production from water splitting. Herein, CH3NH3PbI3 a photocathode with a sandwich-like structure is fabricated with a general and scalable approach toward addressing this issue. The photocathode exhibits an onset potential at 0.95 V versus reversible hydrogen electrode (RHE) and a photocurrent density of -18 mA cm(-2) at 0 V versus RHE with an impressive ideal ratiometric power-saved efficiency of 7.63%. More impressively, the photocathode retains good stability under 12 h continuous illumination in water at wide pH range. This performance is much superior to that of the best perovskite-based photoelectrode ever reported.
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