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- Publications
- Influence
Photoluminescence and Raman study of Cu2ZnSn(SexS1 − x)4 monograins for photovoltaic applications
- M. Grossberg, J. Krustok, J. Raudoja, K. Timmo, M. Altosaar, T. Raadik
- Materials Science
- 31 August 2011
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 absorption… Expand
The role of structural properties on deep defect states in Cu2ZnSnS4 studied by photoluminescence spectroscopy
- M. Grossberg, J. Krustok, J. Raudoja, T. Raadik
- Physics
- 4 September 2012
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 and… Expand
Cu2Zn1–xCdx Sn(Se1–ySy)4 solid solutions as absorber materials for solar cells
- M. Altosaar, J. Raudoja, +4 authors Enn Mellikov
- Chemistry
- 2008
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 the… Expand
as absorber materials for solar cells
- M. Altosaar, J. Raudoja, +4 authors Enn Mellikov
- Materials Science
- 2008
Photoluminescence study of defect clusters in Cu2ZnSnS4 polycrystals
- M. Grossberg, T. Raadik, J. Raudoja, J. Krustok
- Materials Science
- 1 March 2014
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 1.35… Expand
Study of Cu2ZnSnSe4 monograin formation in molten KI starting from binary chalcogenides
- I. Kļaviņa, T. Kaljuvee, +4 authors D. Meissner
- Chemistry
- 31 August 2011
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 conditions… Expand
Photoluminescence and the tetragonal distortion in CuInS2
- J. Krustok, J. Raudoja, H. Collan
- Chemistry
- 29 May 2001
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 resolved… Expand
Monograin materials for solar cells
- Enn Mellikov, D. Meissner, +6 authors M. Danilson
- Chemistry
- 2009
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 powder… Expand
Formation of Cu2ZnSnSe4 thin films by selenization of electrodeposited stacked binary alloy layers
- M. Ganchev, L. Kaupmees, +6 authors T. Varema
- Materials Science
- 1 August 2010
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 adjusted… Expand
Influence of order-disorder in Cu 2 ZnSnS 4 powders on the performance of monograin layer solar cells
- K. Timmo, M. Kauk-Kuusik, +6 authors K. Ernits
- Materials Science
- 1 July 2017
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. The… Expand
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