申请人:Vaidyanathan Subramanian
公开号:US10005879B2
公开(公告)日:2018-06-26
A method for producing an organic semiconductor device (110) having at least one organic semiconducting material (122) and at least two electrodes (114) adapted to support an electric charge carrier transport through the organic semiconducting material (122) is disclosed. The organic semiconducting material (122) intrinsically has ambipolar semiconducting properties. The method comprises at least one step of generating at least one intermediate layer (120) which at least partially is interposed between the organic semiconducting material (122) and at least one of the electrodes (114) of the organic semiconductor device (110). The intermediate layer (120) comprises at least one thiol compound having the general formula HS—R, wherein R is an organic residue. The thiol compound has an electric dipole moment pointing away from the SH-group of the thiol compound. The electric dipole moment has at least the same magnitude as the electric dipole moment in 4-Phenylthiophenol. By the intermediate layer (120) an ambipolar charge carrier transport between the electrodes (114) is suppressed in favor of a unipolar charge carrier transport.
本发明公开了一种生产有机半导体器件(110)的方法,该器件具有至少一种有机半导体材料(122)和至少两个适于支持电荷载流子通过有机半导体材料(122)传输的电极(114)。有机半导体材料(122)本质上具有伏极性半导体特性。该方法至少包括一个步骤,即生成至少一个中间层(120),该中间层(120)至少部分位于有机半导体材料(122)和有机半导体器件(110)的至少一个电极(114)之间。中间层(120)包括至少一种硫醇化合物,其通式为 HS-R,其中 R 为有机残留物。硫醇化合物具有远离硫醇化合物 SH 基团的电偶极矩。电偶极矩的大小至少与 4-苯基苯硫酚的电偶极矩相同。中间层(120)抑制了电极(114)之间的非极性电荷载流子传输,而有利于单极性电荷载流子传输。