The diamond radiation detector with an Ohmic contact using diamond-like carbon interlayer

被引：1

作者：

Pan, Z. ^{[1
]}

Qin, K. ^{[1
]}

Zhou, J. ^{[1
]}

Yu, H. ^{[1
]}

Xu, R. ^{[1
]}

Huang, J. ^{[1
]}

Tang, K. ^{[1
]}

Wang, L. ^{[1
]}

机构：

[1] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200041, Peoples R China

来源：

MATERIALS RESEARCH INNOVATIONS | 2015年 / 19卷

基金：

中国国家自然科学基金;

关键词：

Diamond; Radiation detector; Ohmic contact; Raman Spectrum; Chemical Vapor Deposition; METALLIZATION; FILM; AU;

D O I：

10.1179/1432891714Z.0000000001201

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A diamond-like carbon thin layer was used as an interlayer between a free-standing diamond substrate grown by microwave plasma enhanced chemical vapour deposition and a Pt/Au layer. The dark-current of about 5.0 pA cm(-2) was found for this detector at an electric field of 200 V cm(-1). Ohmic contact was achieved by this diamond-like carbon/Pt/Au trilayer structure as evidenced by a linear dark I-V curve. The ratios of photocurrent to dark-current were about 26 and 35 for diamond detectors with Ti/Pt/Au and diamond-like carbon/Pt/Au trilayer electrodes, respectively. The energy resolution for the diamond detector with diamond-like carbon/Pt/Au electrode was about 3.30%, better than 4.56% for the detector with Ti/Pt/Au electrode.

引用

页码：828 / 831

页数：4

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