In this work, we analyzed the effects of alpha and ultraviolet irradiation on encapsulated and non-encapsulated thin-film-transistors. Up to-35% mobility variation occurs on unencapsulated devices after UV irradiation. The same UV irradiation induced less than -3%on encapsulated devices. By investigating the charge trapping kinetics, we show that the increased robustness comes from the reduced air absorption, rather than solely attenuating UV the components.
Improved Tolerance Against UV and Alpha Irradiation of Encapsulated Organic TFTs
WRACHIEN, NICOLA;CESTER, ANDREA;BARI, DANIELE;MENEGHESSO, GAUDENZIO
2012
Abstract
In this work, we analyzed the effects of alpha and ultraviolet irradiation on encapsulated and non-encapsulated thin-film-transistors. Up to-35% mobility variation occurs on unencapsulated devices after UV irradiation. The same UV irradiation induced less than -3%on encapsulated devices. By investigating the charge trapping kinetics, we show that the increased robustness comes from the reduced air absorption, rather than solely attenuating UV the components.
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