Investigation of effective annealing on CdMnTe:In crystals with different thickness for gamma-ray detectors

Pengfei Yu; Yadong Xu; Yongren Chen; Jie Song; Yi Zhu; Meijing Zhang; Binggang Zhang; Yu Wang; Wei Li; Lijun Luan; Yuanyuan Du; Jing Ma; Jiahong Zheng; Zhuo Li; Min Bai; Hui Li; Wanqi Jie

doi:10.1016/j.jcrysgro.2017.11.012

Investigation of effective annealing on CdMnTe:In crystals with different thickness for gamma-ray detectors

Pengfei Yu
, Yadong Xu
, Yongren Chen
, Jie Song
, Yi Zhu
, Meijing Zhang
, Binggang Zhang
, Yu Wang
, Wei Li
, Lijun Luan
, Yuanyuan Du
, Jing Ma
, Jiahong Zheng
, Zhuo Li
, Min Bai
, Hui Li
, Wanqi Jie

School of Materials Sience and Engineering

Chang'an University
Northwestern Polytechnical University Xian
CAS - Institute of High Energy Physics

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

17 Scopus citations

Abstract

Radiation detectors with different thickness are needed to detect gamma rays with various energies. In this paper, a post-growth annealing method was used to improve the properties of CdMnTe:In (CMT:In) crystals with different thickness for gamma-ray detectors. The results indicated that Te inclusions in CMT:In crystals with different thickness were reduced remarkably after annealing. Both the resistivity and IR transmittance of annealed CMT:In crystals with different thickness increased obviously, which suggested that the crystal quality was improved. For the detectors fabricated by annealed CMT:In slices with 1 mm, 2 mm and 5 mm thickness, the energy resolutions were enhanced about 252%, 193% and 141%, respectively. And (μτ)_e values were enhanced about 80%, 80% and 76%, respectively. The performance of the detectors was greatly improved after annealing.

Original language	English
Pages (from-to)	94-101
Number of pages	8
Journal	Journal of Crystal Growth
Volume	483
DOIs	https://doi.org/10.1016/j.jcrysgro.2017.11.012
State	Published - 1 Feb 2018

Keywords

A1. Characterization
A2. Bridgman technique
B1. Cadmium compounds
B2 Semiconducting II–VI materials

Access to Document

10.1016/j.jcrysgro.2017.11.012

Cite this

@article{db8a77fd8ba440e78fc2b3637153e928,

title = "Investigation of effective annealing on CdMnTe:In crystals with different thickness for gamma-ray detectors",

abstract = "Radiation detectors with different thickness are needed to detect gamma rays with various energies. In this paper, a post-growth annealing method was used to improve the properties of CdMnTe:In (CMT:In) crystals with different thickness for gamma-ray detectors. The results indicated that Te inclusions in CMT:In crystals with different thickness were reduced remarkably after annealing. Both the resistivity and IR transmittance of annealed CMT:In crystals with different thickness increased obviously, which suggested that the crystal quality was improved. For the detectors fabricated by annealed CMT:In slices with 1 mm, 2 mm and 5 mm thickness, the energy resolutions were enhanced about 252\%, 193\% and 141\%, respectively. And (μτ)e values were enhanced about 80\%, 80\% and 76\%, respectively. The performance of the detectors was greatly improved after annealing.",

keywords = "A1. Characterization, A2. Bridgman technique, B1. Cadmium compounds, B2 Semiconducting II–VI materials",

author = "Pengfei Yu and Yadong Xu and Yongren Chen and Jie Song and Yi Zhu and Meijing Zhang and Binggang Zhang and Yu Wang and Wei Li and Lijun Luan and Yuanyuan Du and Jing Ma and Jiahong Zheng and Zhuo Li and Min Bai and Hui Li and Wanqi Jie",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2018",

month = feb,

day = "1",

doi = "10.1016/j.jcrysgro.2017.11.012",

language = "英语",

volume = "483",

pages = "94--101",

journal = "Journal of Crystal Growth",

issn = "0022-0248",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Investigation of effective annealing on CdMnTe:In crystals with different thickness for gamma-ray detectors

AU - Yu, Pengfei

AU - Xu, Yadong

AU - Chen, Yongren

AU - Song, Jie

AU - Zhu, Yi

AU - Zhang, Meijing

AU - Zhang, Binggang

AU - Wang, Yu

AU - Li, Wei

AU - Luan, Lijun

AU - Du, Yuanyuan

AU - Ma, Jing

AU - Zheng, Jiahong

AU - Li, Zhuo

AU - Bai, Min

AU - Li, Hui

AU - Jie, Wanqi

PY - 2018/2/1

Y1 - 2018/2/1

N2 - Radiation detectors with different thickness are needed to detect gamma rays with various energies. In this paper, a post-growth annealing method was used to improve the properties of CdMnTe:In (CMT:In) crystals with different thickness for gamma-ray detectors. The results indicated that Te inclusions in CMT:In crystals with different thickness were reduced remarkably after annealing. Both the resistivity and IR transmittance of annealed CMT:In crystals with different thickness increased obviously, which suggested that the crystal quality was improved. For the detectors fabricated by annealed CMT:In slices with 1 mm, 2 mm and 5 mm thickness, the energy resolutions were enhanced about 252%, 193% and 141%, respectively. And (μτ)e values were enhanced about 80%, 80% and 76%, respectively. The performance of the detectors was greatly improved after annealing.

AB - Radiation detectors with different thickness are needed to detect gamma rays with various energies. In this paper, a post-growth annealing method was used to improve the properties of CdMnTe:In (CMT:In) crystals with different thickness for gamma-ray detectors. The results indicated that Te inclusions in CMT:In crystals with different thickness were reduced remarkably after annealing. Both the resistivity and IR transmittance of annealed CMT:In crystals with different thickness increased obviously, which suggested that the crystal quality was improved. For the detectors fabricated by annealed CMT:In slices with 1 mm, 2 mm and 5 mm thickness, the energy resolutions were enhanced about 252%, 193% and 141%, respectively. And (μτ)e values were enhanced about 80%, 80% and 76%, respectively. The performance of the detectors was greatly improved after annealing.

KW - A1. Characterization

KW - A2. Bridgman technique

KW - B1. Cadmium compounds

KW - B2 Semiconducting II–VI materials

UR - https://www.scopus.com/pages/publications/85034635472

U2 - 10.1016/j.jcrysgro.2017.11.012

DO - 10.1016/j.jcrysgro.2017.11.012

M3 - 文章

AN - SCOPUS:85034635472

SN - 0022-0248

VL - 483

SP - 94

EP - 101

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

ER -

Investigation of effective annealing on CdMnTe:In crystals with different thickness for gamma-ray detectors

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this