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公开(公告)号:JPH10190001A
公开(公告)日:1998-07-21
申请号:JP33139897
申请日:1997-12-02
Applicant: LUCENT TECHNOLOGIES INC
Inventor: BAO ZHENAN , DODABALAPUR ANANTH , FENG YI , RAJU VENKATARAM REDDY
IPC: C09K3/00 , H01L21/336 , H01L29/786 , H01L51/00 , H01L51/05 , H01L51/30 , H01L51/40
Abstract: PROBLEM TO BE SOLVED: To form an organic semiconductor layer by forming an active layer of organic material and permitting the layer to have a carrier mobility of a specific value or higher and a conductivity of a specific value or lower. SOLUTION: An active semiconductor layer is formed of organic polymer having a carrier mobility of approximately 10 cm /Vs or higher and a conductivity of approximately 10 s/cm or lower. An organic material active layer is composed of regioregular homopolymer (3-alkylthiophene). The alkyl group has at least 2-12 carbon atoms and is represented by a character R. Branched chains, such as isopropyl and isobutyl, and straight chain alkyl are the examples of the alkyl group. In the regioregular homopolymer of the 3-alkylthiophene monomer, the orientation of the alkl group of the thiophene part is regular in regard to the thiophene part which adjoins the polymer chain.