Optical properties of flash evaporated amorphous Se100-xIn x thin films for CuInSe2 solar cell applications

Cosmas M. Muiva; Kelebogile Maabong; Stephen T. Sathiaraj; Julius M. Mwabora

doi:10.2316/P.2012.760-029

Optical properties of flash evaporated amorphous Se_100-xIn _x thin films for CuInSe₂ solar cell applications

Cosmas M. Muiva, Kelebogile Maabong, Stephen T. Sathiaraj, Julius M. Mwabora

Physics & Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Amorphous Se_100-xIn_x thin films were prepared by flash evaporation of the pre-melt quenched bulk samples. The samples were characterised and the suitability of each composition assessed towards applications as a buffer layers in CuInSe₂ photovoltaic cells. XRD studies confirmed that all the samples were amorphous. There was a descending dependence of complex dielectric constant and refractive index on wavelength which levelled in the infra-red (IR) region. A red shift in the optical energy gap E_g ^opt from 1.76 eV for In = 5 at% to 1.46 eV for In = 20 at% was observed. The E_g ^opt values were in the range that is compatible with solar energy conversion.

Original language	English
Title of host publication	Proceedings of the IASTED African Conference on Power and Energy Systems, AfricaPES 2012
Pages	86-90
Number of pages	5
DOIs	https://doi.org/10.2316/P.2012.760-029
Publication status	Published - Dec 1 2012
Event	4th IASTED African Conference on Power and Energy Systems, AfricaPES 2012 - Gaborone, Botswana Duration: Sept 3 2012 → Sept 5 2012

Other

Other	4th IASTED African Conference on Power and Energy Systems, AfricaPES 2012
Country/Territory	Botswana
City	Gaborone
Period	9/3/12 → 9/5/12

All Science Journal Classification (ASJC) codes

Energy Engineering and Power Technology
Electrical and Electronic Engineering
Condensed Matter Physics

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.2316/P.2012.760-029

Cite this

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title = "Optical properties of flash evaporated amorphous Se100-xIn x thin films for CuInSe2 solar cell applications",

abstract = "Amorphous Se100-xInx thin films were prepared by flash evaporation of the pre-melt quenched bulk samples. The samples were characterised and the suitability of each composition assessed towards applications as a buffer layers in CuInSe2 photovoltaic cells. XRD studies confirmed that all the samples were amorphous. There was a descending dependence of complex dielectric constant and refractive index on wavelength which levelled in the infra-red (IR) region. A red shift in the optical energy gap Eg opt from 1.76 eV for In = 5 at% to 1.46 eV for In = 20 at% was observed. The Eg opt values were in the range that is compatible with solar energy conversion.",

author = "Muiva, {Cosmas M.} and Kelebogile Maabong and Sathiaraj, {Stephen T.} and Mwabora, {Julius M.}",

year = "2012",

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doi = "10.2316/P.2012.760-029",

language = "English",

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pages = "86--90",

booktitle = "Proceedings of the IASTED African Conference on Power and Energy Systems, AfricaPES 2012",

note = "4th IASTED African Conference on Power and Energy Systems, AfricaPES 2012 ; Conference date: 03-09-2012 Through 05-09-2012",

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Muiva, CM, Maabong, K, Sathiaraj, ST & Mwabora, JM 2012, Optical properties of flash evaporated amorphous Se_100-xIn _x thin films for CuInSe₂ solar cell applications. in Proceedings of the IASTED African Conference on Power and Energy Systems, AfricaPES 2012. pp. 86-90, 4th IASTED African Conference on Power and Energy Systems, AfricaPES 2012, Gaborone, Botswana, 9/3/12. https://doi.org/10.2316/P.2012.760-029

Optical properties of flash evaporated amorphous Se_100-xIn _x thin films for CuInSe₂ solar cell applications. / Muiva, Cosmas M.; Maabong, Kelebogile; Sathiaraj, Stephen T. et al.
Proceedings of the IASTED African Conference on Power and Energy Systems, AfricaPES 2012. 2012. p. 86-90.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AB - Amorphous Se100-xInx thin films were prepared by flash evaporation of the pre-melt quenched bulk samples. The samples were characterised and the suitability of each composition assessed towards applications as a buffer layers in CuInSe2 photovoltaic cells. XRD studies confirmed that all the samples were amorphous. There was a descending dependence of complex dielectric constant and refractive index on wavelength which levelled in the infra-red (IR) region. A red shift in the optical energy gap Eg opt from 1.76 eV for In = 5 at% to 1.46 eV for In = 20 at% was observed. The Eg opt values were in the range that is compatible with solar energy conversion.

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