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Journal of Photonics for Energy

Microphotoluminescence study of Cu2ZnSnS4 polycrystals
Author(s): Maarja Grossberg; Pille Salu; Jaan Raudoja; Jyri Krustok
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Paper Abstract

Microphotoluminescence studies of Cu 2 ZnSnS 4 polycrystals were performed. At room temperature, two photoluminescence (PL) bands were detected at 1.39 and 1.53 eV and attributed to band-to-tail (BT) and band-to-band (BB) recombination, respectively. At lower temperatures, band-to-impurity recombination always dominates. The results show that the model of heavily doped semiconductors applies to Cu 2 ZnSnS 4 and that, in contrast to the ternary chalcopyrites, the BT recombination in Cu 2 ZnSnS 4 has very low intensity. The laser power dependency of the PL intensity shows that the recombination mechanism of BT and BB bands exhibits an exciton-like behavior.

Paper Details

Date Published: 3 June 2013
PDF: 7 pages
J. Photon. Energy. 3(1) 030599 doi: 10.1117/1.JPE.3.030599
Published in: Journal of Photonics for Energy Volume 3, Issue 1
Show Author Affiliations
Maarja Grossberg, Tallinn Univ. of Technology (Estonia)
Pille Salu, Tallinn Univ. of Technology (Estonia)
Jaan Raudoja, Tallinn Univ. of Technology (Estonia)
Jyri Krustok, Tallinn Univ. of Technology (Estonia)


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