Influence of deposition time in CdTe thin film properties grown by Close-Spaced Sublimation (CSS) for photovoltaic application

Kazi Sajedur Rahman, Muhammad Najib Harif, Hasrul Nisham Rosly, Mohamad Ibrahim Bin Kamaruzzaman, Md Akhtaruzzaman, Mohammad Alghoul, Halina Misran, Nowshad Amin

Research output: Contribution to journalArticle

Abstract

Cadmium Telluride (CdTe) thin films were grown on borosilicate glass substrates by close-spaced sublimation (CSS) at a pressure of 1.5–2 Torr in Ar ambient. CdTe thin films were sublimed at a source temperature of 625 °C and substrate temperature of 595 °C. In this study, the impact of various deposition times on the structural, morphological, topographical, electrical and optical properties of CdTe thin films has been explored to achieve high quality thin film absorber layer for solar cells applications. The crystalline structure, surface morphology, surface topology, electrical and optical properties of the films were examined by using X-ray diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM), Atomic Force Microscopy (AFM), Hall Effect measurement and UV–Vis spectrophotometry, respectively. XRD investigation demonstrated that CdTe film shows polycrystalline nature pronounced with cubic zinc blende structure with a strong preferential (1 1 1) orientation. The FESEM images illustrated that the surface morphology and the average grain size of the films were dependent on the deposition times of CdTe thin films. AFM analysis revealed noteworthy changes in the film's surface roughness values for different deposition times. Carrier concentration was found in the order of 1013 cm−3. Band gap of CdTe thin film was found in the range 1.45–1.48 eV, which is suitable to be used in CdTe thin film solar cells.

Original languageEnglish
Article number102371
JournalResults in Physics
Volume14
DOIs
Publication statusPublished - 01 Sep 2019

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cadmium tellurides
sublimation
thin films
field emission
solar cells
electrical properties
atomic force microscopy
optical properties
scanning electron microscopy
borosilicate glass
spectrophotometry
diffraction
Hall effect
absorbers
surface roughness
x rays
topology
zinc
grain size
temperature

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Rahman, K. S., Harif, M. N., Rosly, H. N., Kamaruzzaman, M. I. B., Akhtaruzzaman, M., Alghoul, M., ... Amin, N. (2019). Influence of deposition time in CdTe thin film properties grown by Close-Spaced Sublimation (CSS) for photovoltaic application. Results in Physics, 14, [102371]. https://doi.org/10.1016/j.rinp.2019.102371
Rahman, Kazi Sajedur ; Harif, Muhammad Najib ; Rosly, Hasrul Nisham ; Kamaruzzaman, Mohamad Ibrahim Bin ; Akhtaruzzaman, Md ; Alghoul, Mohammad ; Misran, Halina ; Amin, Nowshad. / Influence of deposition time in CdTe thin film properties grown by Close-Spaced Sublimation (CSS) for photovoltaic application. In: Results in Physics. 2019 ; Vol. 14.
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Influence of deposition time in CdTe thin film properties grown by Close-Spaced Sublimation (CSS) for photovoltaic application. / Rahman, Kazi Sajedur; Harif, Muhammad Najib; Rosly, Hasrul Nisham; Kamaruzzaman, Mohamad Ibrahim Bin; Akhtaruzzaman, Md; Alghoul, Mohammad; Misran, Halina; Amin, Nowshad.

In: Results in Physics, Vol. 14, 102371, 01.09.2019.

Research output: Contribution to journalArticle

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T1 - Influence of deposition time in CdTe thin film properties grown by Close-Spaced Sublimation (CSS) for photovoltaic application

AU - Rahman, Kazi Sajedur

AU - Harif, Muhammad Najib

AU - Rosly, Hasrul Nisham

AU - Kamaruzzaman, Mohamad Ibrahim Bin

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AU - Alghoul, Mohammad

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AU - Amin, Nowshad

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