[HTML][HTML] Effect of room air exposure on the field emission performance of UV light irradiated Si-gated field emitter arrays
R Bhattacharya, M Cannon, R Bhattacharjee… - Journal of Vacuum …, 2022 - pubs.aip.org
Field emission cathodes are promising candidates in nanoscale vacuum channel transistors
and are used in microwave vacuum electron devices. Prior research has shown that UV light
exposure as well as 350 C vacuum bake can desorb water vapor from Si field emission tips,
resulting in lower work function and improved emission performance. However, after long
exposure to room air (greater than 24 h), the improved performance is lost as water adsorbs
on the tips. In this study, experiments were carried on two sets of 1000× 1000 Si-gated field …
and are used in microwave vacuum electron devices. Prior research has shown that UV light
exposure as well as 350 C vacuum bake can desorb water vapor from Si field emission tips,
resulting in lower work function and improved emission performance. However, after long
exposure to room air (greater than 24 h), the improved performance is lost as water adsorbs
on the tips. In this study, experiments were carried on two sets of 1000× 1000 Si-gated field …
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