作为有机薄膜晶体管半导体的二噻吩并硅杂环戊二烯和二苯并硅杂环戊二烯-噻吩共聚物
Dithienosilole- and dibenzosilole-thiophene copolymers as semiconductors for organic thin-film transistors.
作者信息
Usta Hakan, Lu Gang, Facchetti Antonio, Marks Tobin J
机构信息
Department of Chemistry and the Materials Research Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA.
出版信息
J Am Chem Soc. 2006 Jul 19;128(28):9034-5. doi: 10.1021/ja062908g.
The synthesis and physicochemical properties of a new class of thiophene/arenesilole-containing pi-conjugated polymers are reported. Examples of this new polymer class include the following: poly(2,5-bis(3',3' '-dihexylsilylene-2',2' '-bithieno)thiophene) (TS6T1), poly(2,5'-bis(3' ',3' ''-dihexylsilylene-2' ',2' ''-bithieno)bithiophene) (TS6T2), poly(2,5'-bis(2' ',2' ''-dioctylsilylene-1' ',1' ''-biphenyl)thiophene) (BS8T1), and poly(2,5'-bis(2' ',2' ''-dioctylsilylene-1' ',1' ''-biphenyl)bithiophene) (BS8T2). Organic field-effect transistors (OFETs) with hole carrier mobilities as high as 0.02-0.06 cm2/V s in air, low turn-on voltages, and current on/off ratios >105-106 are fabricated using solution processing techniques with the above polymers as the active channel layer. OFETs based on this polymer class exhibit excellent ambient operational stability.
报道了一类新型含噻吩/芳基硅芴的π共轭聚合物的合成及其物理化学性质。这类新型聚合物的例子包括：聚（2,5-双（3'，3''-二己基硅撑-2'，2''-联噻吩）噻吩）（TS6T1）、聚（2,5'-双（3''，3''' -二己基硅撑-2''，2''' -联噻吩）联噻吩）（TS6T2）、聚（2,5'-双（2''，2''' -二辛基硅撑-1''，1''' -联苯）噻吩）（BS8T1）和聚（2,5'-双（2''，2''' -二辛基硅撑-1''，1''' -联苯）联噻吩）（BS8T2）。使用溶液加工技术，以上述聚合物作为有源沟道层，制备了空穴载流子迁移率在空气中高达0.02 - 0.06 cm2/V s、开启电压低且电流开/关比>105 - 106的有机场效应晶体管（OFET）。基于这类聚合物的OFET表现出优异的环境操作稳定性。
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