ANNEALING OUT OF THERMAL PROCESS-INDUCED DEFECTS AT INP(110) SURFACES - A NOVEL METHOD

被引：4
|
作者：
YAMADA, M
GREEN, AM
HERRERAGOMEZ, A
KENDELEWICZ, T
SPICER, WE
机构：
[1] Stanford Electronics Laboratories, Stanford University, Stanford, CA
[2] Visiting Scientist from Fujitsu Ltd., Kawasaki
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1991年 / 30卷 / 11B期
关键词：
INP; PHOSPHORUS VACANCY; ONE MONOLAYER OF SB; PHOTOEMISSION SPECTROSCOPY; SURFACE FERMI LEVEL;
D O I：
10.1143/JJAP.30.L1982
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A novel method which can anneal out defects of InP(110) surfaces due to phosphorous loss is proposed. InP(110) surfaces become phosphorous deficient and the surface Fermi level of p-InP is pinned at 0.55 eV (+/- 0.05 eV) above the valence band maximum with vacuum annealing at around 200-degrees-C. A few monolayers of Sb are deposited on the surface, then annealed at above 200-degrees-C for 10 minutes. This produces a well-ordered Sb epitaxial monolayer which effectively caps the InP surface, preventing phosphorous desorption from the surface and chemical reactions between overlayers and InP. Thereby the surface returns to approximately the flat band condition. The Sb capped samples can be annealed without phosphorous loss.
引用
收藏
页码：L1982 / L1984
页数：3
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