Modified Vapor Phase Growth of Cadmium Zinc Telluride: A Progress Report

Autor:	W. P. Trower
Rok vydání:	1997
Předmět:	chemistry.chemical_compound Materials science chemistry Electrical resistivity and conductivity Detector Analytical chemistry Electron Crystallite Ampoule Cadmium telluride photovoltaics Stoichiometry Cadmium zinc telluride
Zdroj:	MRS Proceedings. 487
ISSN:	1946-4274 0272-9172
DOI:	10.1557/proc-487-19
Popis:	We have completed a series of experiments where we realized Cd(1−x)ZnxTe by modified Vapor Phase Growth in which the CdTe and ZnTe components were separated in the growth ampoule, with their vapors passing through channels and openings designed to mix them stoichiometrically at the growth surface. We have obtained polycrystalline CZT boules 50 mm in diameter and 10 mm high whose structure is strikingly different from that obtained by standard High Pressure Bridgman methods. Our mVPG properties relevant for detector applications include resistivity of∼40 GΩ-cm when voltage is first applied, rising to ∼66 GΩ-cm after ∼20 min when the traps are filled, and electron mobility-lifetimes of∼2 × 10−3 cm2/ν. Here we present some structural and operational characterizations of our mVPG CZT.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::98a2b3621b95090c351364a1f7943e0a https://doi.org/10.1557/proc-487-19 Zobrazit plný text záznamu Full text from SpringerLink