Photoactive self-assembled monolayers for optically switchable organic thin-film transistors
Photoactive self-assembled monolayers for optically switchable organic thin-film transistors
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DOI：
10.1063/1.4804595
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发表时间：
2013-05
影响因子：
4
通讯作者：
M. Salinas;M. Halik
中科院分区：
文献类型：
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作者：
M. Salinas;M. Halik
我们研究了具有由氧化铝和自组装单层（SAMs）组成的薄混合电介质的有机薄膜晶体管中的光电导和光伏效应。通过使用具有电光功能的SAM分子，可以实现在用激光照射时在半导体和SAM的界面处的光致电荷转移的调谐。通过SAM组合物对阈值电压的控制使得能够在不施加栅极电压的情况下实现晶体管的光学操作，并且影响光致电荷转移的动态。
We investigate the photoconductive and photovoltaic effects in organic thin-film transistors with thin hybrid dielectrics composed of aluminum oxide and self-assembled monolayers (SAMs). By using SAM molecules with an electro-optical functionality tuning of the photoinduced charge transfer at the interface of semiconductor and SAM upon illumination with laser light can be achieved. Control of the threshold voltage by the SAM composition enables the optical operation of the transistors without applying a gate voltage and affects the dynamics of photoinduced charge transfer.