期刊
PHOTONICS
卷 10, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/photonics10030309
关键词
thin film transistor; photon charge conversion; charge transport
类别
Thin film transistor (TFT) is crucial for planar drive display technology, and operating the TFT device in a saturation regime is essential for stable light emission. This study investigates the effect of illumination on TFT saturation behavior, revealing that the drift current of photogenerated carriers can exhibit saturation behavior depending on the dominance of charges induced by gate bias or charges generated by photons. These insights contribute to the development of TFT technologies that can drive light emission at a stable current.
Thin film transistor (TFT) has been a key device for planal drive display technology, and operating the TFT device in a saturation regime is particularly important for driving the light emission at a stable current. Considering the light emission reaches the TFT planal, it is thereby meaningful to understand the effect of illumination on TFT saturation behavior in order to improve the stability of light emission. Through experiments and simulations, our study shows that the drift current of photogenerated carriers can follow a saturation behavior when the channel conductance is dominated by charges induced by gate bias rather than the charges generated by photons, and vice versa. The obtained device physics insights are beneficial for developing TFT technologies that can drive light emission at a stable current.
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