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Photocatalysis: Iodine‐Doped‐Poly(3,4‐Ethylenedioxythiophene)‐Modified Si Nanowire 1D Core‐Shell Arrays as an Efficient Photocatalyst for Solar Hydrogen Generation (Adv. Mater. 46/2012)
Author(s) -
Yang Tian,
Wang Hui,
Ou XueMei,
Lee ChunSing,
Zhang XiaoHong
Publication year - 2012
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201290294
Subject(s) - materials science , pedot:pss , photocatalysis , doping , hydrogen production , energy conversion efficiency , nanotechnology , visible spectrum , chemical engineering , optoelectronics , solar cell , nanowire , hydrogen , photochemistry , catalysis , layer (electronics) , organic chemistry , chemistry , engineering
Xiao‐Hong Zhang and co‐workers demonstrate on page 6199 a new one‐dimensional core–shell strategy in the development of a stable visible‐light photoanode for a hydrogen‐generation photoelectrochemical cell. This Si/iodine‐doped PEDOT one‐dimensional nanocable array shows an encouraging solar‐to‐chemical energy conversion efficiency of 3.0%, and a H 2 evolution rate of 112.39 μmol cm −2 h −1 under 100 mW cm −2 illumination. Coating with iodine‐doped poly(3,4‐eth‐ylenedioxythiophene) (PEDOT:I) enhances the photocatalytic efficiency and stability of SiNW arrays. This proposed PEC cell model shows a promising structure for H 2 production using solar energy.