GATE INSULATING MATERIAL, GATE INSULATING FILM AND ORGANIC FIELD-EFFECT TRANSISTOR
                        
                            
                                申请人:Murase Seiichiro
                            
                            
                                公开号:US20110068417A1
                            
                            
                                公开(公告)日:2011-03-24
                            
                            To provide a gate insulating material which has high chemical resistance, is superior in coatability of a resist and an organic semiconductor coating liquid, and has small hysteresis, a gate insulating film and an FET using the same by a polysiloxane having an epoxy group-containing silane compound as a copolymerization component.
A gate insulating material containing a polysiloxane having, as copolymerization components, at least a silane compound represented by the general formula (1):
R
1
m
Si(OR
2
)
4-m
(1),
wherein R
1
represents hydrogen, an alkyl group, a cycloalkyl group, a heterocyclic group, an aryl group, a heteroaryl group or an alkenyl group and in the case where a plurality of R
1
s are present, R
1
s may be the same or different, R
2
represents an alkyl group or a cycloalkyl group and in the case where a plurality of R
2
s are present, R
2
s may be the same or different, and m represents an integer of 1 to 3,
and an epoxy group-containing silane compound represented by the general formula (2):
R
3
n
R
4
l
Si(OR
5
)
4-n-1
(2),
wherein R
3
represents an alkyl group or a cycloalkyl group having one or more epoxy groups in a part of a chain and in the case where a plurality of R
3
s are present, R
3
s may be the same or different, R
4
represents hydrogen, an alkyl group, a cycloalkyl group, a heterocyclic group, an aryl group, a heteroaryl group or an alkenyl group and in the case where a plurality of R
4
s are present, R
4
s may be the same or different, R
5
represents an alkyl group or a cycloalkyl group and in the case where a plurality of R
5
s are present, R
5
s may be the same or different, l represents an integer of 0 to 2, and n represents 1 or 2 (however, l+n≦3).