Abstract
SnS nanospheres (NSPs) were synthesized, and the effects of thermal annealing on the structural, morphological, chemical compositional and optical properties were examined. As-synthesized SnS NPSs with a mean size of 3-4 nm underwent a solid state morphological transformation by high temperature annealing in a nitrogen environment. Upon annealing, the size of SnS NSP increased to 5-6 nm with enhanced crystallinity. Also, the photoluminescence (PL) of the nitrogen-annealed samples slightly decreased in intensity with accompanying red-shift in spectrum. The power conversion efficiency of the solar cells using a polymer and the SnS NSPs was ~0.71%. These results confirm that the SnS NSPs demonstrate a potential as an inorganic material to be used in organic-inorganic hybrid bulk heterojunction (BHJ) photovoltaic devices.
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Truong, N.T.N., Hoang, H.H.T., Trinh, T.K. et al. Effect of post-synthesis annealing on properties of SnS nanospheres and its solar cell performance. Korean J. Chem. Eng. 34, 1208–1213 (2017). https://doi.org/10.1007/s11814-016-0347-4
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DOI: https://doi.org/10.1007/s11814-016-0347-4