Author Affiliations
11. The Beijing Municipal Key Laboratory of New Energy Materials and Technologies, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China22. State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China33. College of Chemistry and Material Science, Shandong Agricultural University, Tai'an 271018, Chinashow less
. XRD patterns of the SnS1-xClx(x=0, 0.02, 0.03, 0.04, 0.05, 0.06) bulks at (a) 20°-70°, (b) 31.3°-31.8°and (c) 56.5°-56.8°, which was measured along the hot pressing direction
. Lattice parameters (dots) and cell volume (histogram) of the SnS1-xClx(x=0, 0.02, 0.03, 0.04, 0.05, 0.06) bulks samples along with those of the standard card (dashed lines) for SnS (PDF#39-0354)
. (a) The back-scattered electron (BSE) image of the polished surface, (b) EDS spectra taken from position 1 and 2 and (c)~(d) elemental distributions of S, Sn for x=0.03 sample
. SEM images of the fractured surface morphologies for (a) x=0, (b) x=0.02, (c) x=0.03, (d) x=0.04, (e) x=0.05, (f) x=0.06, and (g) change of grain size (circle) and relative density (square) with x for SnS1-xClx bulk samples
. Temperature dependence of (a) Seebeck coefficient, (b) relation curve of Hall carrier concentration - Seebeck coefficient, (c) electrical conductivity, and (d) power factor for SnS1-xClx (x=0, 0.02, 0.03, 0.04, 0.05, 0.06)
. Temperature dependence of (a) thermal diffusivity, (b) total thermal conductivity, (c) lattice thermal conductivity, and (d) ZT for SnS1-xClx(x=0, 0.02, 0.03, 0.04, 0.05 0.06)
x | Nominal comp. | Real comp. | RH/(cm3•C-1) | nH/cm-3 | μH/(cm2•V-1•s-1) |
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0 | SnS | SnS0.97 | 1.55×103 | 4.03×1015 | 1.29 | 0.02 | SnS0.98Cl0.02 | SnS0.95Cl | 1.43×105 | 4.35×1013 | 2.83 | 0.03 | SnS0.97Cl0.03 | SnS0.97Cl0.005 | -9.9×103 | 6.31×1014 | 2.34 | 0.04 | SnS0.96Cl0.04 | SnS0.95Cl0.009 | -7.19×103 | 8.68×1014 | 3.04 | 0.05 | SnS0.95Cl0.05 | SnS0.93Cl0.021 | -9.22×102 | 6.78×1015 | 3.18 | 0.06 | SnS0.94Cl0.06 | SnS0.92Cl0.022 | -8.6×102 | 7.27×1015 | 3.60 |
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Table 1. Room temperature nominal composition, real composition, Hall coefficient, Hall carrier concentration, and mobility for SnS1-xClx