Study of Optoelectronic Properties CdS-Si Heterojunction Prepared by Chemical Bath Deposition Method

CdS-Si heterojunction detector has been prepared by chemical bath deposition method . Structure properties of these films was characterized by X-ray diffraction .CdS films deposited have polycrystalline structure cubic(zinc blende) and hexagonal. The average grain size is 45 nm .The optical properti...

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Main Author: Hani H. Ahmed
Format: Article
Language:English
Published: University of Anbar 2013-08-01
Series:مجلة جامعة الانبار للعلوم الصرفة
Subjects:
Online Access:https://juaps.uoanbar.edu.iq/article_81182_c63679b25ed7952df2519d4a4b4d4601.pdf
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author Hani H. Ahmed
author_facet Hani H. Ahmed
author_sort Hani H. Ahmed
collection DOAJ
description CdS-Si heterojunction detector has been prepared by chemical bath deposition method . Structure properties of these films was characterized by X-ray diffraction .CdS films deposited have polycrystalline structure cubic(zinc blende) and hexagonal. The average grain size is 45 nm .The optical properties of the CdS films have highly transmittance in visible region of spectrum and reach to more than 80 % with a wide band gap of 2.44 eV .Electrical properties of CdS-Si heterojunction have been investigated. The I-V characteristics under dark condition depict that good rectification behavior and exponential relationship for forward current biasing. The C-V measurements have shown that the heterojunction were of abrupt type and the build-in potential equal to 1.75V. The optoelectronic characteristics shows that CdS-Si detector has good spectral responsivity in the visible and the near infrared and show high sensitivity, in comparison with the conventional p-n silicon detectors.
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spelling doaj.art-fb8747b972414481b842758e68d865a62023-12-28T21:56:20ZengUniversity of Anbarمجلة جامعة الانبار للعلوم الصرفة1991-89412706-67032013-08-0163798410.37652/juaps.2012.8118281182Study of Optoelectronic Properties CdS-Si Heterojunction Prepared by Chemical Bath Deposition MethodHani H. Ahmed0Tikrit University - College of Science.CdS-Si heterojunction detector has been prepared by chemical bath deposition method . Structure properties of these films was characterized by X-ray diffraction .CdS films deposited have polycrystalline structure cubic(zinc blende) and hexagonal. The average grain size is 45 nm .The optical properties of the CdS films have highly transmittance in visible region of spectrum and reach to more than 80 % with a wide band gap of 2.44 eV .Electrical properties of CdS-Si heterojunction have been investigated. The I-V characteristics under dark condition depict that good rectification behavior and exponential relationship for forward current biasing. The C-V measurements have shown that the heterojunction were of abrupt type and the build-in potential equal to 1.75V. The optoelectronic characteristics shows that CdS-Si detector has good spectral responsivity in the visible and the near infrared and show high sensitivity, in comparison with the conventional p-n silicon detectors.https://juaps.uoanbar.edu.iq/article_81182_c63679b25ed7952df2519d4a4b4d4601.pdfcdssi heterojunctionchemical bath depositionstructural and optical propertiesv characteristicsv measurementspectral responsivity
spellingShingle Hani H. Ahmed
Study of Optoelectronic Properties CdS-Si Heterojunction Prepared by Chemical Bath Deposition Method
مجلة جامعة الانبار للعلوم الصرفة
cds
si heterojunction
chemical bath deposition
structural and optical properties
v characteristics
v measurement
spectral responsivity
title Study of Optoelectronic Properties CdS-Si Heterojunction Prepared by Chemical Bath Deposition Method
title_full Study of Optoelectronic Properties CdS-Si Heterojunction Prepared by Chemical Bath Deposition Method
title_fullStr Study of Optoelectronic Properties CdS-Si Heterojunction Prepared by Chemical Bath Deposition Method
title_full_unstemmed Study of Optoelectronic Properties CdS-Si Heterojunction Prepared by Chemical Bath Deposition Method
title_short Study of Optoelectronic Properties CdS-Si Heterojunction Prepared by Chemical Bath Deposition Method
title_sort study of optoelectronic properties cds si heterojunction prepared by chemical bath deposition method
topic cds
si heterojunction
chemical bath deposition
structural and optical properties
v characteristics
v measurement
spectral responsivity
url https://juaps.uoanbar.edu.iq/article_81182_c63679b25ed7952df2519d4a4b4d4601.pdf
work_keys_str_mv AT hanihahmed studyofoptoelectronicpropertiescdssiheterojunctionpreparedbychemicalbathdepositionmethod