Surface activation of n-type AlGaN with cesium and oxygen to enhance thermionic emission
Kai Namura,
Shigeya Kimura,
Hisao Miyazaki
et al.
Abstract:The paper describes the characteristics of thermionic emission of AlGaN surface through surface control employing cesium (Cs) and oxygen. The thermionic emission current of AlGaN surfaces with Cs and oxygen was measured, and the surface state of AlGaN was analyzed by employing a new material-independent thermionic emission model (MRM) based on the Richardson-Dushman equation successfully reproduced the thermionic emission behavior of Cs-deposited and Cs/O2 co-deposited AlGaN, considering the dynamic change of … Show more
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