The study on Schottky contact between Au and clean CdZnTe

Gangqiang Zha; Wanqi Jie; Dongmei Zeng; Yadong Xu; Wenhua Zhang; Faqiang Xu

doi:10.1016/j.susc.2006.04.033

The study on Schottky contact between Au and clean CdZnTe

Gangqiang Zha, Wanqi Jie, Dongmei Zeng, Yadong Xu, Wenhua Zhang, Faqiang Xu

School of Materials Sience and Engineering

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

11 Scopus citations

Abstract

Au Schottky contact was deposited on the clean CZT (1 1 0) and (1 1 1) A surface by molecular beam epitaxy (MBE). The real Schottky barrier heights were measured to be 0.738 eV and 0.566 eV by Synchrotron radiation photoemission spectroscopy (SRPES) respectively. The constituents of (1 1 0) and (1 1 1) A surfaces were measured by XPS. The Te concentration on (1 1 1) A surface is higher than that of (1 1 0) surface. And the difference of chemical reactivity and charge transfer were identified by Au 4f_7/2, Cd 4d, Te 4d_5/2 core level shifts using SRPES. Using metal-induced gap states model, the results of experiment were explained.

Original language	English
Pages (from-to)	2629-2632
Number of pages	4
Journal	Surface Science
Volume	600
Issue number	12
DOIs	https://doi.org/10.1016/j.susc.2006.04.033
State	Published - 15 Jun 2006

Keywords

CdZnTe
LEED
Metal-induced gap states
Schottky contact
SRPES
XPS

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10.1016/j.susc.2006.04.033

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title = "The study on Schottky contact between Au and clean CdZnTe",

abstract = "Au Schottky contact was deposited on the clean CZT (1 1 0) and (1 1 1) A surface by molecular beam epitaxy (MBE). The real Schottky barrier heights were measured to be 0.738 eV and 0.566 eV by Synchrotron radiation photoemission spectroscopy (SRPES) respectively. The constituents of (1 1 0) and (1 1 1) A surfaces were measured by XPS. The Te concentration on (1 1 1) A surface is higher than that of (1 1 0) surface. And the difference of chemical reactivity and charge transfer were identified by Au 4f7/2, Cd 4d, Te 4d5/2 core level shifts using SRPES. Using metal-induced gap states model, the results of experiment were explained.",

keywords = "CdZnTe, LEED, Metal-induced gap states, Schottky contact, SRPES, XPS",

author = "Gangqiang Zha and Wanqi Jie and Dongmei Zeng and Yadong Xu and Wenhua Zhang and Faqiang Xu",

year = "2006",

month = jun,

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doi = "10.1016/j.susc.2006.04.033",

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journal = "Surface Science",

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TY - JOUR

T1 - The study on Schottky contact between Au and clean CdZnTe

AU - Zha, Gangqiang

AU - Jie, Wanqi

AU - Zeng, Dongmei

AU - Xu, Yadong

AU - Zhang, Wenhua

AU - Xu, Faqiang

PY - 2006/6/15

Y1 - 2006/6/15

N2 - Au Schottky contact was deposited on the clean CZT (1 1 0) and (1 1 1) A surface by molecular beam epitaxy (MBE). The real Schottky barrier heights were measured to be 0.738 eV and 0.566 eV by Synchrotron radiation photoemission spectroscopy (SRPES) respectively. The constituents of (1 1 0) and (1 1 1) A surfaces were measured by XPS. The Te concentration on (1 1 1) A surface is higher than that of (1 1 0) surface. And the difference of chemical reactivity and charge transfer were identified by Au 4f7/2, Cd 4d, Te 4d5/2 core level shifts using SRPES. Using metal-induced gap states model, the results of experiment were explained.

AB - Au Schottky contact was deposited on the clean CZT (1 1 0) and (1 1 1) A surface by molecular beam epitaxy (MBE). The real Schottky barrier heights were measured to be 0.738 eV and 0.566 eV by Synchrotron radiation photoemission spectroscopy (SRPES) respectively. The constituents of (1 1 0) and (1 1 1) A surfaces were measured by XPS. The Te concentration on (1 1 1) A surface is higher than that of (1 1 0) surface. And the difference of chemical reactivity and charge transfer were identified by Au 4f7/2, Cd 4d, Te 4d5/2 core level shifts using SRPES. Using metal-induced gap states model, the results of experiment were explained.

KW - CdZnTe

KW - LEED

KW - Metal-induced gap states

KW - Schottky contact

KW - SRPES

KW - XPS

UR - http://www.scopus.com/inward/record.url?scp=33745008676&partnerID=8YFLogxK

U2 - 10.1016/j.susc.2006.04.033

DO - 10.1016/j.susc.2006.04.033

M3 - 文章

AN - SCOPUS:33745008676

SN - 0039-6028

VL - 600

SP - 2629

EP - 2632

JO - Surface Science

JF - Surface Science

IS - 12

ER -

The study on Schottky contact between Au and clean CdZnTe

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Keywords

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