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/lp/springer_journal/growth-and-characterization-of-the-evaporated-quaternary-absorber-GIsn50cAWB
- Publisher
- Springer Journals
- Copyright
- Copyright © 2018 by The Minerals, Metals & Materials Society
- Subject
- Materials Science; Optical and Electronic Materials; Characterization and Evaluation of Materials; Electronics and Microelectronics, Instrumentation; Solid State Physics
- ISSN
- 0361-5235
- eISSN
- 1543-186X
- DOI
- 10.1007/s11664-018-6202-0
- Publisher site
- See Article on Publisher Site
Abstract
Cu2FeSnS4 (CFTS) was synthesized by direct fusion of high-purity elemental copper, iron, tin and sulfur. CFTS thin films were deposited on glass substrates heated by single source vacuum thermal evaporation, after which the obtained samples were annealed under a sulfur atmosphere in a sealed quartz tube at 400°C for 1 h in order to optimize the CFTS stannite phase. The substrate temperature was varied from room temperature to 200°C. The formation of a stannite structure with (112), (200) and (004) planes in the powder and thin films was confirmed using x-ray diffraction measurements and the crystallites were found to have a preferred orientation along the (112) direction. Optical measurements analysis showed that after the sulfurization process the layers have a relatively high absorption coefficient close to 105 cm−1 in the visible spectrum. The films show a direct optical band gap in the range 1.30–1.63 eV for substrate temperature varied from room temperature to 200°C. All samples revealed p-type conductivity as determined by the hot probe method.
Journal
Journal of Electronic Materials – Springer Journals
Published: Mar 20, 2018