Effects of annealing on Ti Schottky barriers on n-type GaN

被引:34
作者
Hirsch, MT [1 ]
Duxstad, KJ [1 ]
Haller, EE [1 ]
机构
[1] LAWRENCE BERKELEY LAB,BERKELEY,CA 94720
关键词
gallium nitride; Schottky barriers; annealing;
D O I
10.1049/el:19970021
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The authors ivestigate the Schottky barrier heights of Ti films deposited on n-type GaN. The effective barrier height Phi(b0) is measured by current-voltage measurements, against temperature. An increasing barrier height Phi(b0) from similar to 200meV (as-deposited) to 250meV after annealing at temperatures as low as 60 degrees C is observed. After annealing at 230 degrees C and above, a stable Phi(b0) of 450meV is measured. The increase in Phi(b0) is not due to any macroscopic interfacial reaction.
引用
收藏
页码:95 / 96
页数:2
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