Blue electroluminescence from metal/oxide/6H-SiC tunneling diodes
Journal
IEEE Transactions on Electron Devices
Journal Volume
55
Journal Issue
12
Pages
3590-3593
Date Issued
2008
Author(s)
Abstract
The tunneling current of Pt/oxide/n-6H-SiC tunneling diodes was used for electroluminescence (EL). The negative gate bias can inject electrons from Pt to n-SiC and leads to a radiative donor-acceptor pair (DAP) transition. The blue EL at room temperature is observed at negative gate bias, and the intensity increases with increasing drive current. The DAP transition is enhanced by the electric field due to carrier tunneling. Thus, strong luminescence is observed at negative (inversion) bias, while no luminescence is observed at positive (accumulation) bias. © 2008 IEEE.
SDGs
Type
journal article