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|Title: ||Structural properties of Cu(In,Ga)Se2 thin films prepared from chemically processed precursor layers|
|Authors: ||Hibberd, Christopher J.|
Dann, Sandra E.
|Keywords: ||Thin film solar cells|
|Issue Date: ||2009|
|Publisher: ||© Elsevier|
|Citation: ||HIBBERD, C.J. ... et al., 2009. Structural properties of Cu(In,Ga)Se2 thin films prepared from chemically processed precursor layers. Thin Solid Films, 517 (7), pp. 2235-2239|
|Abstract: ||We have developed a chemical process for incorporating copper into indium gallium selenide layers with the goal of creating a precursor structure for the formation of copper indium gallium diselenide (CIGS) photovoltaic absorbers. Stylus profilometry, EDX, Raman spectroscopy, XRD and SIMS measurements show that when indium gallium selenide layers are immersed in a hot copper chloride solution, copper is incorporated as copper selenide with no increase in the thickness of the layers. Further measurements show that annealing this precursor structure in the presence of selenium results in the formation of CIGS and that the supply of selenium during the annealing process has a strong effect on the morphology and preferred orientation of these layers. When the supply of Se during annealing begins only once the substrate temperature reaches ≈ 400 °C, the resulting CIGS layers are smoother and have more pronounced preferred orientation than when Se is supplied throughout the entire annealing process.|
|Description: ||This article was published in the Journal, Thin Solid Films [© Elsevier]. The definitive version is available at: www.elsevier.com/locate/tsf|
|Version: ||Accepted for publication|
|Appears in Collections:||Published Articles (Mechanical, Electrical and Manufacturing Engineering)|
Published Articles (Chemistry)
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