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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Schmid, Martina
University of Duisburg-Essen
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 20228.0% Efficient Submicron CuIn(S,Se)2 Solar Cells on Sn:In2O3 Back Contact via a Facile Solution Processcitations
- 2017Growth and shape of indium islands on molybdenum at micro-roughened spots created by femtosecond laser pulsescitations
- 2017Growth and shape of indium islands on molybdenum at micro-roughened spots created by femtosecond laser pulsescitations
- 2016Regularly arranged indium islands on glass/molybdenum substrates upon femtosecond laser and physical vapor deposition processingcitations
- 2015Phase transitions during formation of Ag nanoparticles on In2S3 precursor layers
- 2015Phase transitions during formation of Ag nanoparticles on In2S3 precursor layerscitations
- 2015Nano-optical concept design for light management
- 2015Nano-optical concept design for light managementcitations
- 2014Influence of substrate and its temperature on the optical constants of CuIn1−xGaxSe2thin filmscitations
- 2014Comparative scanning near-field optical microscopy studies of plasmonic nanoparticle conceptscitations
- 2014Comparative scanning near-field optical microscopy studies of plasmonic nanoparticle concepts
- 2014Influence of substrate and its temperature on the optical constants of CuIn1−xGaxSe2 thin films
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article
Influence of substrate and its temperature on the optical constants of CuIn1−xGaxSe2thin films
Abstract
We investigate the influence of substrate and its temperature on the optical constants of CuIn1−xGaxSe2 (CIGSe) thin films using the transfer-matrix method. The optical constants of a CIGSe layer on top of a transparent conducting oxide (TCO) layer were calculated considering the realistic optical constants of the TCO layer after CIGSe deposition. It was found that TCO substrates could influence the optical constants of CIGSe layers and that the ITO (Sn doped In2O3) substrate had a greater impact than IMO (Mo doped In2O3) for the CIGSe (x = 0.4) film when compared to a reference on bare glass substrate. Additionally, the varied substrate temperatures did not impact the optical constants of CGSe (x = 1). For CIGSe (x = 0.4), the refractive index n stayed relatively independent although at low temperature the grain size was reduced and the Ga/(Ga+In) profile was altered compared to that at high temperature (610 °C). In contrast, the extinction coefficient k at low temperature showed higher absorption at longer wavelengths because of a lower minimum bandgap (Eg,min) originating from reduced inter-diffusion of Ga–Se at a low substrate temperature.