Journal
MATERIALS RESEARCH BULLETIN
Volume 115, Issue -, Pages 182-190Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2019.03.027
Keywords
Chalcognides; Inorganic compounds; Semiconductors; Sol-Gel chemistry; Thermogravimetric analysis; Raman spectroscopy; X-ray diffraction; Electrical properties
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Funding
- Education Research Program for Young and Middle-aged Teachers of Fujian Education Department,China [KLa17058A]
- High-Altitude Discipline Project of Fujian Province, China [712018014]
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CZTS thin films are fabricated using sol-gel method following sulfurization. The material properties of the CZTS films which are prepared under different preheating temperatures and times are systematically investigated. The TGA-DTA analysis shows that the sulfides begin to be oxidized and the CZTS nanoparticles would be formed when the preheating temperature is above 300 degrees C. Moreover, with increasing the preheating temperature and time, the crystallinity of the CZTS thin films becomes stronger firstly and then weaker. Morphological characterizations show that the CZTS thin films deliver the best crystallinity under the preheating temperature of 250 degrees C for 5 min. The E-g, resistivity, carrier concentration, and mobility of the CZTS thin films is 1.45 eV, 3.56 Omega.cm, 2.47 x 10(17) cm(-3), 7.12 cm(2).V-1.s(-1), respectively. The solar cells with the efficiency of 1.51% is successfully configured.
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