Study the Effect of Zn Doping in the Structural and Electrical Properties of CdTe Thin Films

Some of structural ,and electrical properties of pure and zinc (Zn) doped cadmium telluride thin films with impurity percentages (0.5, 1, 1.5)%, deposited on hot glass substrate (temperature equals to 423K) of  thickness of 300nm and rate deposition of 0.5 nm.s-1  by thermal co-evaporation techniqu...

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Main Authors: Alia A. M. Shehab, Iqbal S. N. Abd, Hanaa I. Mohammed
Format: Article
Language:English
Published: University of Baghdad 2017-04-01
Series:Ibn Al-Haitham Journal for Pure and Applied Sciences
Subjects:
Online Access:https://jih.uobaghdad.edu.iq/index.php/j/article/view/371
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author Alia A. M. Shehab
Iqbal S. N. Abd
Hanaa I. Mohammed
author_facet Alia A. M. Shehab
Iqbal S. N. Abd
Hanaa I. Mohammed
author_sort Alia A. M. Shehab
collection DOAJ
description Some of structural ,and electrical properties of pure and zinc (Zn) doped cadmium telluride thin films with impurity percentages (0.5, 1, 1.5)%, deposited on hot glass substrate (temperature equals to 423K) of  thickness of 300nm and rate deposition of 0.5 nm.s-1  by thermal co-evaporation technique under vacuum of (2×10-5)Torr have been investigates. The structural properties for the prepared films were studied before and after. doping process by analysis of the X-ray diffraction, and it appeared that pure and dopant  CdTe thin films are polycrystalline and have the cubic structure with preferential orientation in the [111] direction, and the crystal structure of the films were improved due to doping process. From d.c.electrical conductivity in range of (291-495)K, we noticed that there are two activation energies Ea1 and Ea2, and their values decrease with the..increase.of.Zn.percentages,so..(σd.c.)..of..those..thin.films.increase . From Hall.effect. measurements we showed that the..(σd.c.).. for CdTe thin film is of n-type and converted to p-type when they adopted with Zn, and charge carrier concentration increases with the increase of Zn percentages, so Hall mobility (μH) decreases
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spelling doaj.art-d0bb88397fa34943956906d7853854b62022-12-22T00:44:37ZengUniversity of BaghdadIbn Al-Haitham Journal for Pure and Applied Sciences1609-40422521-34072017-04-01271Study the Effect of Zn Doping in the Structural and Electrical Properties of CdTe Thin FilmsAlia A. M. ShehabIqbal S. N. AbdHanaa I. Mohammed Some of structural ,and electrical properties of pure and zinc (Zn) doped cadmium telluride thin films with impurity percentages (0.5, 1, 1.5)%, deposited on hot glass substrate (temperature equals to 423K) of  thickness of 300nm and rate deposition of 0.5 nm.s-1  by thermal co-evaporation technique under vacuum of (2×10-5)Torr have been investigates. The structural properties for the prepared films were studied before and after. doping process by analysis of the X-ray diffraction, and it appeared that pure and dopant  CdTe thin films are polycrystalline and have the cubic structure with preferential orientation in the [111] direction, and the crystal structure of the films were improved due to doping process. From d.c.electrical conductivity in range of (291-495)K, we noticed that there are two activation energies Ea1 and Ea2, and their values decrease with the..increase.of.Zn.percentages,so..(σd.c.)..of..those..thin.films.increase . From Hall.effect. measurements we showed that the..(σd.c.).. for CdTe thin film is of n-type and converted to p-type when they adopted with Zn, and charge carrier concentration increases with the increase of Zn percentages, so Hall mobility (μH) decreases https://jih.uobaghdad.edu.iq/index.php/j/article/view/371CdTe, doping with Zn, Structural and Electrical Properties.
spellingShingle Alia A. M. Shehab
Iqbal S. N. Abd
Hanaa I. Mohammed
Study the Effect of Zn Doping in the Structural and Electrical Properties of CdTe Thin Films
Ibn Al-Haitham Journal for Pure and Applied Sciences
CdTe, doping with Zn, Structural and Electrical Properties.
title Study the Effect of Zn Doping in the Structural and Electrical Properties of CdTe Thin Films
title_full Study the Effect of Zn Doping in the Structural and Electrical Properties of CdTe Thin Films
title_fullStr Study the Effect of Zn Doping in the Structural and Electrical Properties of CdTe Thin Films
title_full_unstemmed Study the Effect of Zn Doping in the Structural and Electrical Properties of CdTe Thin Films
title_short Study the Effect of Zn Doping in the Structural and Electrical Properties of CdTe Thin Films
title_sort study the effect of zn doping in the structural and electrical properties of cdte thin films
topic CdTe, doping with Zn, Structural and Electrical Properties.
url https://jih.uobaghdad.edu.iq/index.php/j/article/view/371
work_keys_str_mv AT aliaamshehab studytheeffectofzndopinginthestructuralandelectricalpropertiesofcdtethinfilms
AT iqbalsnabd studytheeffectofzndopinginthestructuralandelectricalpropertiesofcdtethinfilms
AT hanaaimohammed studytheeffectofzndopinginthestructuralandelectricalpropertiesofcdtethinfilms