Optical absorption, Raman spectra, and electrical properties of Mn-doped Cu2SnSe3 semiconductor compound
作者： C Rincón , G Marcano , R Casanova , GE Delgado , G Marín
关键词:
摘要: Here we report a study of the absorption spectrum Mn-doped bulk crystal samples Cu2SnSe3 which are also characterized by X-ray diffraction (XRD), electrical properties, and Raman spectroscopy. From data it is found that above 145 K conduction mainly due to activation in valence band below this temperature variable-range-hopping Efros–Shklovskii type impurity band. Our XRD show presence SnSe SnSe2 binary secondary phases compound. coefficient at room fundamental edge determined be direct with gap energy EG = (0.41 ± 0.01) eV. An additional indirect band-to-band transition 0.9 eV, probably related SnSe, observed.
harvard.edu
sci-hub.se 参考文章(48)
Yuchen Dong, Jun He, Jiahua Tao, Lin Sun, Pingxiong Yang, Junhao Chu, Influence of different S/Se ratio on the properties of Cu2Sn(SxSe1-x)3 thin films fabricated by annealing stacked metal precursors Journal of Materials Science: Materials in Electronics. ,vol. 26, pp. 6723- 6729 ,(2015) , 10.1007/S10854-015-3276-9
G. Domingo, R. S. Itoga, C. R. Kannewurf, Fundamental Optical Absorption in SnS2and SnSe2 Physical Review. ,vol. 143, pp. 536- 541 ,(1966) , 10.1103/PHYSREV.143.536
Clas Persson, Electronic and optical properties of Cu2ZnSnS4 and Cu2ZnSnSe4 Journal of Applied Physics. ,vol. 107, pp. 053710- ,(2010) , 10.1063/1.3318468
Alex Redinger, Katja Hönes, Xavier Fontané, Victor Izquierdo-Roca, Edgardo Saucedo, Nathalie Valle, Alejandro Pérez-Rodríguez, Susanne Siebentritt, Detection of a ZnSe secondary phase in coevaporated Cu2ZnSnSe4 thin films Applied Physics Letters. ,vol. 98, pp. 101907- ,(2011) , 10.1063/1.3558706
G Marcano, C Rincón, LM De Chalbaud, DB Bracho, G Sánchez Pérez, None, Crystal growth and structure, electrical, and optical characterization of the semiconductor Cu2SnSe3 Journal of Applied Physics. ,vol. 90, pp. 1847- 1853 ,(2001) , 10.1063/1.1383984
Susanne Siebentritt, Susan Schorr, Kesterites - a challenging material for solar cells Progress in Photovoltaics. ,vol. 20, pp. 512- 519 ,(2012) , 10.1002/PIP.2156
L. K. Samanta, On some properties of I2-IV-VI3 compounds Physica Status Solidi (a). ,vol. 100, ,(1987) , 10.1002/PSSA.2211000165
E. Kroumova, M.I. Aroyo, J.M. Perez-Mato, A. Kirov, C. Capillas, S. Ivantchev, H. Wondratschek, Bilbao crystallographic server: Useful databases and tools for phase-transition studies Phase Transitions. ,vol. 76, pp. 155- 170 ,(2003) , 10.1080/0141159031000076110
Wei Wang, Mark T. Winkler, Oki Gunawan, Tayfun Gokmen, Teodor K. Todorov, Yu Zhu, David B. Mitzi, Device Characteristics of CZTSSe Thin‐Film Solar Cells with 12.6% Efficiency Advanced Energy Materials. ,vol. 4, pp. 1301465- ,(2014) , 10.1002/AENM.201301465
A.M. Elkorashy, Optical absorption in tin monoselenide single crystal Journal of Physics and Chemistry of Solids. ,vol. 47, pp. 497- 500 ,(1986) , 10.1016/0022-3697(86)90048-X