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Characteristics of Nanocrystallite-CdS Produced by Low-Cost Electrochemical Technique for Thin Film Photovoltaic Application: The Influence of Deposition Voltage
Joint Authors
Echendu, O. K.
Dharmadasa, I. M.
Dejene, Francis Birhanu
Eze, Francis Chukwuemeka
Source
International Journal of Photoenergy
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-11-02
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Electrochemical deposition and characterization of nanocrystallite-CdS thin films for thin film solar cell application are reported.
The two-electrode system used provides a relatively simple and cost-effective approach for large-scale deposition of semiconductors for solar cell and other optoelectronic device application.
Five CdS thin films were deposited for 45 minutes each at different cathodic deposition voltages in order to study their properties.
X-ray diffraction study reveals that the as-deposited films contain mixed phases of hexagonal and cubic CdS crystallites with large amounts of internal strain and dislocation density.
Postdeposition annealing results in phase transformation which leaves the films with only the hexagonal crystal phase and reduced strain and dislocation density while increasing the crystallite sizes from 21.0–42.0 nm to 31.2–63.0 nm.
Photoelectrochemical cell study shows that all the CdS films have n-type electrical conductivity.
Optical characterization reveals that all samples show similar transmittance and absorbance responses with the transmittance slightly increasing towards higher growth voltages.
All the annealed films show energy bandgap of 2.42 eV.
Scanning electron microscopy and energy dispersive X-ray analyses show that grains on the surface of the films tend to get cemented together after annealing with prior CdCl2 treatment while all the films are S-rich.
American Psychological Association (APA)
Echendu, O. K.& Dejene, Francis Birhanu& Dharmadasa, I. M.& Eze, Francis Chukwuemeka. 2017. Characteristics of Nanocrystallite-CdS Produced by Low-Cost Electrochemical Technique for Thin Film Photovoltaic Application: The Influence of Deposition Voltage. International Journal of Photoenergy،Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1168227
Modern Language Association (MLA)
Echendu, O. K.…[et al.]. Characteristics of Nanocrystallite-CdS Produced by Low-Cost Electrochemical Technique for Thin Film Photovoltaic Application: The Influence of Deposition Voltage. International Journal of Photoenergy No. 2017 (2017), pp.1-13.
https://search.emarefa.net/detail/BIM-1168227
American Medical Association (AMA)
Echendu, O. K.& Dejene, Francis Birhanu& Dharmadasa, I. M.& Eze, Francis Chukwuemeka. Characteristics of Nanocrystallite-CdS Produced by Low-Cost Electrochemical Technique for Thin Film Photovoltaic Application: The Influence of Deposition Voltage. International Journal of Photoenergy. 2017. Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1168227
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1168227