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ABSTRACT:
SUBMITTER: Isotta E
PROVIDER: S-EPMC6567239 | biostudies-literature | 2019 May
REPOSITORIES: biostudies-literature
Isotta Eleonora E Fanciulli Carlo C Pugno Nicola M NM Scardi Paolo P
Nanomaterials (Basel, Switzerland) 20190517 5
Bulk samples of kesterite (Cu<sub>2</sub>ZnSnS<sub>4</sub>, CZTS) were produced by cold-pressing and sintering of CZTS powders obtained via reactive ball-milling. An increase in the Seebeck coefficient of more than 100 μV/K, almost doubling the expected value, is noticed around a temperature of 260 °C. As pointed out by thermal analyses, this is due to a second order transition of kesterite from an ordered I-4 to a disordered I-42m crystal structure. Conversely to what happens for solar cell mat ...[more]