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.