TY - JOUR
T1 - Identifying Short-Range Disorder in Crystalline Bulk Cu2SnS3 Phases
T2 - A Solid-State Nuclear Magnetic Resonance Spectroscopic Investigation
AU - Pogue, Elizabeth Ann
AU - Paris, Michael
AU - Sutrisno, Andre
AU - Lafond, Alain
AU - Johnson, Nicole
AU - Shoemaker, Daniel P.
AU - Rockett, Angus A.
N1 - The National Science Foundation, Grant CHE-1230973, funded this work. Raman spectroscopy measurements were collected at the Beckman Institute at the University of Illinois Urbana−Champaign. X-ray diffraction and UV/vis measurements were conducted at the Frederick Seitz Materials Reserach Laboratory at the University of Illinois at Urbana− Champaign. NMR measurements were conducted at the Institut des Mateŕ iaux Jean Rouxel at the University of Nantes and at the School of Chemical Sciences NMR/EPR facility of the University of Illinois at Urbana−Champaign.
PY - 2018/10/9
Y1 - 2018/10/9
N2 - Cu2SnS3 has recently attracted attention as a low-cost, earth-abundant absorber material for thin-film solar cells. Unfortunately, multiple Cu2SnS3 structures exist and the conditions under which different structures form are poorly defined. The structures of tetragonal and monoclinic Cu2SnS3 phases are clarified by use of solid-state nuclear magnetic resonance spectroscopy (ssNMR). The monoclinic Cu2SnS3 phase is shown to form under Sn-rich, Cu-poor conditions and the tetragonal Cu2SnS3 phase forms under Cu-rich, Sn-poor conditions, indicating that there is a composition difference between the structures that has not previously been reported. Furthermore, the monoclinic phase is destabilized at temperatures between 200 and 345 °C, when the material becomes tetragonal.
AB - Cu2SnS3 has recently attracted attention as a low-cost, earth-abundant absorber material for thin-film solar cells. Unfortunately, multiple Cu2SnS3 structures exist and the conditions under which different structures form are poorly defined. The structures of tetragonal and monoclinic Cu2SnS3 phases are clarified by use of solid-state nuclear magnetic resonance spectroscopy (ssNMR). The monoclinic Cu2SnS3 phase is shown to form under Sn-rich, Cu-poor conditions and the tetragonal Cu2SnS3 phase forms under Cu-rich, Sn-poor conditions, indicating that there is a composition difference between the structures that has not previously been reported. Furthermore, the monoclinic phase is destabilized at temperatures between 200 and 345 °C, when the material becomes tetragonal.
UR - https://www.scopus.com/pages/publications/85053893784
UR - https://www.scopus.com/pages/publications/85053893784#tab=citedBy
U2 - 10.1021/acs.chemmater.8b01182
DO - 10.1021/acs.chemmater.8b01182
M3 - Article
AN - SCOPUS:85053893784
SN - 0897-4756
VL - 30
SP - 6624
EP - 6635
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 19
ER -