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Title: Cadmium Zinc Telluride Selenide (CdZnTeSe) A promising low cost alternative to Cadmium Zinc Telluride (CdZnTe) for medical imaging and nuclear detector applications

Abstract

We successfully developed CZTS – a new promising material for radiation detection to replace CdZnTe.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA), Office of Nonproliferation and Verification Research and Development (NA-22)
OSTI Identifier:
1376113
Report Number(s):
BNL-113994-2017
R&D Project: 21543; TRN: US1800545
DOE Contract Number:
SC00112704
Resource Type:
Technical Report
Resource Relation:
Related Information: Greater NY Chapter of Health Physics Society spring symposium; Memorial Sloan Kettering Cancer Center, 430 East 67th St., NY, NY 10065 ; 20170606 through 20170606
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CDZNTE SEMICONDUCTOR DETECTORS; BIOMEDICAL RADIOGRAPHY; CADMIUM; ZINC; TELLURIDES; SELENIDES; CZTS; Radiation detector

Citation Formats

Roy, U. N., Camarda, G. S., Cui, Y., Gul, R., Hossain, A., and Yang, G. Cadmium Zinc Telluride Selenide (CdZnTeSe) A promising low cost alternative to Cadmium Zinc Telluride (CdZnTe) for medical imaging and nuclear detector applications. United States: N. p., 2017. Web. doi:10.2172/1376113.
Roy, U. N., Camarda, G. S., Cui, Y., Gul, R., Hossain, A., & Yang, G. Cadmium Zinc Telluride Selenide (CdZnTeSe) A promising low cost alternative to Cadmium Zinc Telluride (CdZnTe) for medical imaging and nuclear detector applications. United States. doi:10.2172/1376113.
Roy, U. N., Camarda, G. S., Cui, Y., Gul, R., Hossain, A., and Yang, G. Tue . "Cadmium Zinc Telluride Selenide (CdZnTeSe) A promising low cost alternative to Cadmium Zinc Telluride (CdZnTe) for medical imaging and nuclear detector applications". United States. doi:10.2172/1376113. https://www.osti.gov/servlets/purl/1376113.
@article{osti_1376113,
title = {Cadmium Zinc Telluride Selenide (CdZnTeSe) A promising low cost alternative to Cadmium Zinc Telluride (CdZnTe) for medical imaging and nuclear detector applications},
author = {Roy, U. N. and Camarda, G. S. and Cui, Y. and Gul, R. and Hossain, A. and Yang, G.},
abstractNote = {We successfully developed CZTS – a new promising material for radiation detection to replace CdZnTe.},
doi = {10.2172/1376113},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 06 00:00:00 EDT 2017},
month = {Tue Jun 06 00:00:00 EDT 2017}
}

Technical Report:

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  • The goal of this project was to utilize a novel device design to build a compact, high resolution, room temperature operated semiconductor gamma ray sensor. This sensor was constructed from a cadmium zinc telluride (CZT) crystal. It was able to both detect total radiation intensity and perform spectroscopy on the detected radiation. CZT detectors produced today have excellent electron charge carrier collection, but suffer from poor hole collection. For conventional gamma-ray spectrometers, both the electrons and holes must be collected with high efficiency to preserve energy resolution. The requirement to collect the hole carriers, which have relatively low lifetimes, limitsmore » the efficiency and performance of existing experimental devices. By implementing novel device designs such that the devices rely only on the electron signal for energy information, the sensitivity of the sensors for detecting radiation can be increased substantially. In this report the authors describe a project to develop a new type of electron-only CZT detector. They report on their successful efforts to design, implement and test these new radiation detectors. In addition to the design and construction of the sensors the authors also report, in considerable detail, on the electrical characteristics of the CZT crystals used to make their detectors.« less
  • The growth method of (Zn,Cd)S, (Zn,Cd)Se, (Zn,Cd)Te single crystals is reviewed. It is suggested that the method of sublimation-condensation is the most suitable to the conditions and facilities available, and should be employed in the Department of Physics of Bislystok Polytechnic.
  • This report describes research to demonstrate (1) thin film cadmium telluride solar cells with a quantum efficiency of 75% or higher at 0. 44 {mu}m and a photovoltaic efficiency of 11.5% or greater, and (2) thin film zinc telluride and mercury zinc telluride solar cells with a transparency to sub-band-gap radiation of 65% and a photovoltaic conversion efficiency of 5% and 8%, respectively. Work was directed at (1) depositing transparent conducting semiconductor films by solution growth and metal-organic chemical vapor deposition (MOCVD) technique, (2) depositing CdTe films by close-spaced sublimation (CSS) and MOCVD techniques, (3) preparing and evaluating thin filmmore » CdTe solar cells, and (4) preparing and characterizing thin film ZnTe, CD{sub 1-x}Zn{sub 1-x}Te, and Hg{sub 1-x}Zn{sub x}Te solar cells. The deposition of CdS films from aqueous solutions was investigated in detail, and their crystallographic, optical, and electrical properties were characterized. CdTe films were deposited from DMCd and DIPTe at 400{degrees}C using TEGa and AsH{sub 3} as dopants. CdTe films deposited by CSS had significantly better microstructures than those deposited by MOCVD. Deep energy states in CdTe films deposited by CSS and MOCVD were investigated. Thin films of ZnTe, Cd{sub 1- x}Zn{sub x}Te, and Hg{sub 1-x}Zn{sub x}Te were deposited by MOCVD, and their crystallographic, optical, and electrical properties were characterized. 67 refs.« less