- document
-
Sun, J. (author), Sokolovskij, R. (author), Iervolino, E. (author), Liu, Zewen (author), Sarro, Pasqualina M (author), Zhang, Kouchi (author)We developed an AlGaN/GaN high electron mobility transistor (HEMT) sensor with a tungsten trioxide (WO<sub>3</sub>) nano-film modified gate for nitrogen dioxide (NO<sub>2</sub>) detection. The device has a suspended circular membrane structure and an integrated micro-heater. The thermal characteristic of the Platinum (Pt) micro-heater and the...journal article 2019
- document
-
Sun, J. (author), Zhan, Teng (author), Liu, Zewen (author), Wang, Junxi (author), Yi, Xiaoyan (author), Sarro, Pasqualina M (author), Zhang, Kouchi (author)This paper demonstrates a method to reduce the decay time in AlGaN/GaN photodetectors by a pulsed heating mode. A suspended AlGaN/GaN heterostructure photodetector integrated with a micro-heater is fabricated and characterized under ultraviolet illumination. We have observed that the course of persistent photoconductivity was effectively...journal article 2019