scholarly journals Impurity Phases and Optoelectronic Properties of CuSbSe2 Thin Films Prepared by Cosputtering Process for Absorber Layer in Solar Cells

Coatings ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1209 ◽  
Author(s):  
Sara Kim ◽  
Nam-Hoon Kim

When there is a choice of materials for an application, particular emphasis should be given to the development of those that are low-cost, nontoxic, and Earth-abundant. Chalcostibite CuSbSe2 has gained attention as a potential absorber material for thin-film solar cells, since it exhibits a high absorption coefficient. In this study, CuSbSe2 thin films were deposited by radio frequency magnetron cosputtering with CuSe2 and Sb targets. A series of CuSbxSe2 thin films were prepared with different Sb contents adjusted by sputtering power, followed by rapid thermal annealing. Impurity phases and surface morphology of Cu–Sb–Se systems were directly affected by the Sb sputtering power, with the formation of volatile components. The crystallinity of the CuSbSe2 thin films was also enhanced in the near-stoichiometric system at an Sb sputtering power of 15 W, and considerable degradation in crystallinity occurred with a slight increase over 19 W. Resistivity, carrier mobility, and carrier concentration of the near-stoichiometric thin film were 14.4 Ω-cm, 3.27 cm2/V∙s, and 1.33 × 1017 cm−3, respectively. The optical band gap and absorption coefficient under the same conditions were 1.7 eV and 1.75 × 105 cm−1, which are acceptable for highly efficient thin-film solar cells.

2018 ◽  
Vol 6 (18) ◽  
pp. 8682-8692 ◽  
Author(s):  
Gustavo H. Albuquerque ◽  
Ki-Joong Kim ◽  
Jonathon I. Lopez ◽  
Arun Devaraj ◽  
Sandeep Manandhar ◽  
...  

Optimized sulfurization process and final spectrum of the absorption coefficient of the Cu3SbS4 thin films.


RSC Advances ◽  
2015 ◽  
Vol 5 (109) ◽  
pp. 89635-89643 ◽  
Author(s):  
Priyanka U. Londhe ◽  
Ashwini B. Rohom ◽  
Nandu B. Chaure

Highly crystalline and stoichiometric CIS thin films have been electrodeposited from non-aqueous bath at temperature 130 °C. Superstrate solar cell structure (FTO/CdS/CIS/Au) exhibited 4.5% power conversion efficiency.


1989 ◽  
Vol 161 ◽  
Author(s):  
Harin S. Ullal ◽  
Kenneth Zweibel ◽  
Richard L. Mitchell

ABSTRACTThe Polycrystalline Thin Film Solar Cells Program, part of the United States National Photovoltaic Program, performs R&D on copper indium diselenide and cadmium telluride thin films. The objective of the Program is to support research to develop cells and modules that meet the U.S. Department of Energy's long-term goals by achieving high efficiencies (15% - 20%), low-cost ($50/M2), and long-time reliability (30 years). The importance of work in this area is due to the fact that the polycrystalline thin-film CuInSe2 and CdTe solar cells and modules have made rapid advances. They have become the leading thin films for PV in terms of efficiency and stability. The U.S. Department of Energy has increased its funding through an initiative through the Solar Energy Research Institute in CuInSe2and CdTe with subcontracts to start in Spring 1990.


2016 ◽  
Vol 18 (3) ◽  
pp. 700-711 ◽  
Author(s):  
Myeng Gil Gang ◽  
Seung Wook Shin ◽  
Chang Woo Hong ◽  
K. V. Gurav ◽  
Jihye Gwak ◽  
...  

Earth abundant copper–zinc–tin chalcogenide (CZTSSe) is an emerging material for the development of low cost and sustainable thin film solar cells (TFSCs).


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