A new type of covalent-functional graphene donor-acceptor hybrid and its improved photoelectrochemical performance  

作　　者：LIU GuiLin YU CaiLan CHEN ChunCheng MA WanHong JI HongWei 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 Sciences,Beijing 100049,China

出　　处：《Science China Chemistry》2011年第10期1622-1626,共5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 National Basic Research Program of China (2010CB933503 & 2007CB613306)

摘　　要：Graphene has lots of applications, such as field-effect transistors, solar cells and transparent electrodes. In this work, we developed a new donor-acceptor graphene hybrid by covalently bonding a donor phenanthrene-9-carboxaldehyde (PCA) onto the acceptor graphene (PCA-graphene) via 1,3-dipolar cycloaddition azomethine ylides. The resulting PCA-graphene is soluble in N,N-dimethyformamide (DMF). The optoelectronic device (photoanode) fabricated by spin-coating DMF solution of the hybrids exhibits an enhanced photocurrent under visible irradiation.Graphene has lots of applications, such as field-effect transistors, solar cells and transparent electrodes. In this work, we developed a new donor-acceptor graphene hybrid by covalently bonding a donor phenanthrene-9-carboxaldehyde (PCA) onto the acceptor graphene (PCA-graphene) via 1,3-dipolar cycloaddition azomethine ylides. The resulting PCA-graphene is soluble in N,N-dimethyformamide (DMF). The optoelectronic device (photoanode) fabricated by spin-coating DMF solution of the hybrids exhibits an enhanced photocurrent under visible irradiation.

关 键 词：GRAPHENE PHOTOELECTROCHEMICAL DONOR-ACCEPTOR covalent-functional 

分 类 号：O613.71[理学—无机化学]