Possibility of two-step As-desorption from (001) InP using surface photoabsorption

Tae Wan Lee; Ga Young Seong; Young Dong Kim; Heedon Hwang; Sukho Yoon; Euijoon Yoon

doi:10.1143/jjap.40.l980

Possibility of two-step As-desorption from (001) InP using surface photoabsorption

Tae Wan Lee, Ga Young Seong, Young Dong Kim, Heedon Hwang, Sukho Yoon, Euijoon Yoon

Research output: Contribution to journal › Letter › peer-review

3 Citations (Scopus)

Abstract

We present an in situ investigation of As-desorption from the (001) InP surface using surface photoabsorption (SPA). At 470°C, we observed that the SPA signals along [110] remained unchanged even after the AsH₃ supply was turned off, while the SPA signal along [110] showed a sharp increase as reported previously. We also measured SPA spectra at several stable states and found that the surface after AsH₃ was turned off could not reach that of an In-stabilized surface. We interpret these results in terms of As-desorption occurring possibly as a two-step process, in contrast to P-desorption of a one step process.

Original language	English
Pages (from-to)	L980-L982
Journal	Japanese Journal of Applied Physics
Volume	40
Issue number	9 A/B
DOIs	https://doi.org/10.1143/jjap.40.l980
Publication status	Published - 15 Sept 2001

Keywords

As-desorption
InP
MOCVD
P-desorption
Surface photoabsorption

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title = "Possibility of two-step As-desorption from (001) InP using surface photoabsorption",

abstract = "We present an in situ investigation of As-desorption from the (001) InP surface using surface photoabsorption (SPA). At 470°C, we observed that the SPA signals along [110] remained unchanged even after the AsH3 supply was turned off, while the SPA signal along [110] showed a sharp increase as reported previously. We also measured SPA spectra at several stable states and found that the surface after AsH3 was turned off could not reach that of an In-stabilized surface. We interpret these results in terms of As-desorption occurring possibly as a two-step process, in contrast to P-desorption of a one step process.",

keywords = "As-desorption, InP, MOCVD, P-desorption, Surface photoabsorption",

author = "Lee, {Tae Wan} and Seong, {Ga Young} and Kim, {Young Dong} and Heedon Hwang and Sukho Yoon and Euijoon Yoon",

year = "2001",

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doi = "10.1143/jjap.40.l980",

language = "English",

volume = "40",

pages = "L980--L982",

journal = "Japanese Journal of Applied Physics",

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TY - JOUR

T1 - Possibility of two-step As-desorption from (001) InP using surface photoabsorption

AU - Lee, Tae Wan

AU - Seong, Ga Young

AU - Kim, Young Dong

AU - Hwang, Heedon

AU - Yoon, Sukho

AU - Yoon, Euijoon

PY - 2001/9/15

Y1 - 2001/9/15

N2 - We present an in situ investigation of As-desorption from the (001) InP surface using surface photoabsorption (SPA). At 470°C, we observed that the SPA signals along [110] remained unchanged even after the AsH3 supply was turned off, while the SPA signal along [110] showed a sharp increase as reported previously. We also measured SPA spectra at several stable states and found that the surface after AsH3 was turned off could not reach that of an In-stabilized surface. We interpret these results in terms of As-desorption occurring possibly as a two-step process, in contrast to P-desorption of a one step process.

AB - We present an in situ investigation of As-desorption from the (001) InP surface using surface photoabsorption (SPA). At 470°C, we observed that the SPA signals along [110] remained unchanged even after the AsH3 supply was turned off, while the SPA signal along [110] showed a sharp increase as reported previously. We also measured SPA spectra at several stable states and found that the surface after AsH3 was turned off could not reach that of an In-stabilized surface. We interpret these results in terms of As-desorption occurring possibly as a two-step process, in contrast to P-desorption of a one step process.

KW - As-desorption

KW - InP

KW - MOCVD

KW - P-desorption

KW - Surface photoabsorption

UR - http://www.scopus.com/inward/record.url?scp=0035885673&partnerID=8YFLogxK

U2 - 10.1143/jjap.40.l980

DO - 10.1143/jjap.40.l980

M3 - Letter

AN - SCOPUS:0035885673

SN - 0021-4922

VL - 40

SP - L980-L982

JO - Japanese Journal of Applied Physics

JF - Japanese Journal of Applied Physics

IS - 9 A/B

ER -

Possibility of two-step As-desorption from (001) InP using surface photoabsorption

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Keywords

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