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Photoluminescence and Raman study of Cu2ZnSn(SexS1 − x)4 monograins for photovoltaic applications
Abstract The quaternary semiconductors Cu 2 ZnSnSe 4 and Cu 2 ZnSnS 4 have attracted a lot of attention as possible absorber materials for solar cells due to their direct bandgap and high absorptionExpand
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The role of structural properties on deep defect states in Cu2ZnSnS4 studied by photoluminescence spectroscopy
In this study, we investigated the photoluminescence (PL) properties of Cu2ZnSnS4 polycrystals. Two PL bands at 1.27 eV and 1.35 eV at T = 10 K were detected. Similar behaviour with temperature andExpand
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Cu2Zn1–xCdx Sn(Se1–ySy)4 solid solutions as absorber materials for solar cells
Cu 2 Zn 1-x Cd x Sn(Se 1-y S y ) 4 monograin powders with different x- and y-values were prepared from binary compounds in the liquid phase of flux material (KI) in evacuated quartz ampoules. All theExpand
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as absorber materials for solar cells
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Photoluminescence study of defect clusters in Cu2ZnSnS4 polycrystals
Abstract Temperature dependent photoluminescence (PL) study of Cu 2 ZnSnS 4 (CZTS) polycrystals was performed. The low temperature PL spectrum consists of two PL bands: PL1 at 0.66 eV and PL2 at 1.35Expand
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Study of Cu2ZnSnSe4 monograin formation in molten KI starting from binary chalcogenides
Abstract The present study deals with the possible chemical interactions of CuSe, SnSe, and ZnSe in molten KI as a flux material in vacuum ampoules. The aim is to find suitable preparation conditionsExpand
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Photoluminescence and the tetragonal distortion in CuInS2
Abstract Low temperature photoluminescence (PL) measurement of a deep–donor–deep–acceptor (DD–DA) pair recombination emission of close DA pairs in CuInS 2 at h ν=0.62 eV reveals two well resolvedExpand
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Monograin materials for solar cells
This paper reviews results of studies on different materials and technologies for monograin layer (MGL) solar cells conducted at Tallinn University of Technology. The MGL consists of monograin powderExpand
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Formation of Cu2ZnSnSe4 thin films by selenization of electrodeposited stacked binary alloy layers
Brass-Bronze thin-stacked layers electrodeposited in Potentiostatic conditions were selenized in an iso-thermal quartz tubular reactor. The ratio of metal components in selenized films was adjustedExpand
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Influence of order-disorder in Cu 2 ZnSnS 4 powders on the performance of monograin layer solar cells
Abstract In this study the influence of low-temperature structural ordering in absorber material to the performance of Cu 2 ZnSnS 4 (CZTS) monograin layer (MGL) solar cells was investigated. TheExpand
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