Photo-electrochemical water splitting system with three-layer n-type organic semiconductor film as photoanode under visible irradiation  

作　　者：LIU GuiLin CHEN ChunCheng JI HongWei MA WanHong ZHAO JinCai 

机构地区：[1]Beijing National Laboratory for Molecular Sciences(BNLMS),Key Laboratory of Photochemistry,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China [2]Graduate University of Chinese Academy of Science,Beijing 100049,China

出　　处：《Science China Chemistry》2012年第9期1953-1958,共6页中国科学（化学英文版）

基　　金：supported by the National Natural Science Foundation of China (20920102034,20877076 & 20907056);the Major State Basic Research Development Program of China (2010CB933503 &2007CB613306)

摘　　要：A three-layer structure of n-type organic semiconductors （PTCDA/PTCDA：PCBM/PCBM） is successfully identified as pho- toanode for photoelectrochemical water oxidation during the overall splitting of water into hydrogen/oxygen in a nearly stoi- chiometric ratio （H2：O2 = 2：1） under visible irradiation （2 〉 420 nm）. A possible charge separation mechanism under visible light illumination was also proposed.A three-layer structure of n-type organic semiconductors(PTCDA/PTCDA:PCBM/PCBM) is successfully identified as photoanode for photoelectrochemical water oxidation during the overall splitting of water into hydrogen/oxygen in a nearly stoichiometric ratio(H2:O2=2:1) under visible irradiation(λ > 420 nm).A possible charge separation mechanism under visible light illumination was also proposed.

关 键 词：PHOTOELECTROCHEMICAL water splitting organic semiconductor PHOTOCATALYST 

分 类 号：TQ637.3[化学工程—精细化工] TQ931