Journal
SOLAR ENERGY
Volume 98, Issue -, Pages 335-340Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.solener.2013.09.020
Keywords
Heat storage; Heat extraction; Solar cooking
Categories
Funding
- Defense Advanced Research Projects Agency (DARPA) [HR0011101002]
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Synthesis of Cu2ZnSnS4 thin film solar cells by sulfurization of sputtered Sn/Zn/Cu precursors is studied. The sulfurization temperatures were varied, and the morphology, cross section, and composition of the CZTS were investigated by scanning electron microscopy, energy dispersive spectroscopy, X-ray diffraction and Raman scattering. To further explore the CZTS layer, the following additional layers were deposited to complete the solar cells: CdS with chemical bath deposition; ZnO and AZO with RF magnetron deposition; and, finally, silver fingers as the front contact. The efficiency and characteristics of the thin film solar cells were measured and a detailed comparison is reported. Sulfurization at 550 degrees C yields a maximum efficiency of 5.75% without any anti-reflective layers. (C) 2013 Elsevier Ltd. All rights reserved.
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