Investigation of indium tin oxide/zinc oxide multilayer ohmic contacts to n-type GaN isotype conjunction

Autor: Fu-Tsai Hwang, Ching-Ting Lee, Qing-Xuan Yu, Hsin Ying Lee, Bang-Tai Tang
Rok vydání: 2001
Předmět:
Zdroj: Applied Physics Letters. 78:3412-3414
ISSN: 1077-3118
0003-6951
DOI: 10.1063/1.1376430
Popis: The ohmic performance of the ITO/ZnO multilayer deposited on n-type GaN layer was investigated. The best thermal annealing condition achieved for ohmic contact was 5 min at 500 °C, in hydrogen ambient. The measured specific contact resistance was 3×10−4 Ω cm2. Ohmic formation mechanisms would be attributed to the ITO/n-ZnO/n-GaN isotype conjunction and the reduction conduction band offset due to the quantum confinement effects in the thin ZnO layer.
Databáze: OpenAIRE