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首页> 外文期刊>Optical Materials >Light responsive amorphous organic field-effect transistor based on spiro-linked compound
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Light responsive amorphous organic field-effect transistor based on spiro-linked compound

机译：基于螺环连接化合物的光响应性非晶有机场效应晶体管

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摘要

Light responsive organic field-effect transistors based on spiro-linked compound 2,7-bis-(N,N'-diphenylamino)-2',7'-bis(spirobifluo-rene-2-yl)-9,9'-spirobifluorene is reported. The mechanism of light responsive transistor operation is based on intramolecular charge transfer between two molecular halves, which leads to an increase in charge carrier density upon illumination with ultraviolet light, thus providing the amplification effect. A ratio of photocurrent to dark current of up to 2.1×10~3 can be obtained. The drain current in the accumulation regime remains relatively unaffected by the illumination. However, the illumination strongly shifts the threshold voltage as far as 50 V, but does not change the field-effect mobility of the charge carriers.
机译：基于螺旋连接的化合物2,7-双-（N，N'-二苯氨基）-2'，7'-双（螺双氟-烯-2-基）-9,9'-的光响应有机场效应晶体管报告了螺二芴。光响应晶体管工作的机理是基于两个分子半之间的分子内电荷转移，这导致在用紫外线照射时电荷载流子密度增加，从而提供放大效果。可获得的光电流与暗电流之比高达2.1×10〜3。累积状态中的漏极电流保持相对不受照明的影响。然而，照明强烈地将阈值电压移动至50 V，但不会改变电荷载流子的场效应迁移率。

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