Analysis of surface photoabsorption spectra of (001) InP surfaces

被引：4

作者：

Kim, YD ^{[1
]}

Lee, TW

Hwang, H

Moon, Y

Yoon, E

Nakamura, F

机构：

[1] Kyung Hee Univ, Dept Phys, Seoul 130701, South Korea

[2] Seoul Natl Univ, Sch Mat Sci & Engn, Seoul 151742, South Korea

[3] Seoul Natl Univ, ISRC, Seoul 151742, South Korea

[4] Sony Corp, Res Ctr, Yokohama, Kanagawa 240, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1999年 / 38卷 / 9A期

关键词：

surface photoabsorption; InP; MOCVD; in situ monitoring; P dimer; In dimer;

D O I：

10.1143/JJAP.38.5033

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present an in situ surface photoabsorption (SPA) study on surface structures of (001) InP surfaces. Conventional subtraction spectra of SPA on (001) InP showed two peaks at 430 nm and 600 nm, which we assigned as P dimer and In dimer peaks, respectively. By modifying the conventional subtraction equation to separate contributions from In- and P-stabilized surfaces, we could observe another structure at 400 nm which we interpret as related to In-stabilized surface, showing possibility of complementary role of this modified equation. We also observed evolution of surface states from P- to In-stabilized surfaces at 600 degrees C by the change of PH3 partial pressure.

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收藏

页码：5033 / 5036

页数：4

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