Bandgap engineering of Cu2CdxZn1−xSnS4 alloy for photovoltaic applications: A complementary experimental and first-principles study

Abstract

Crystal structure and electronic structure of quaternary semiconductors Cu2ZnTiSe4 and Cu2ZnTiS4 for solar cell absorber

Cadmium effect on optical properties of Cu2Zn1−xCdxSnS4 quinternary alloys nanostructures

“…5(c). This result is supported by the literature (Xiao et al, 2013;Ramasamy et al, 2013). Thus, the optical properties of CZTS absorber layers can be improved by substituting Zn atoms with Cd atoms to produce a lower energy gap, because ZnS has a direct energy gap (3.62 eV) Hu et al, 2013;Luque et al, 2013. x=0.06 x=0.08 The PL spectra of the nanostructures are shown in Fig.…”

“…Additionally, the intensity of the (1 1 2) peak of the Cu 2 Cd x Zn 1Àx SnS 4 nanostructures increased with Cd content, which was attributed to the increasing lattice spacing. This was due to the fact that the radius of the Cd ion, 1.53 Å , is larger than that of Zn, 1.33 Å , and is supported by previous results (Xiao et al, 2013;Sun et al, 2013). The lattice constants a and c were calculated from XRD data for the (1 1 2) plane, and are given in Table 1.…”

Influencing Mechanism of the Selenization Temperature and Time on the Power Conversion Efficiency of Cu2ZnSn(S,Se)4-Based Solar Cells

“…[1][2][3][4] Various deposition methods for the fabrication of CZTSSe films have been reported, including co-evaporation, 5-7 sputtering, [8][9][10][11] electrochemical deposition, [12][13] and solution deposition, [14][15][16][17][18][19][20][21] etc. CZTSSe-based solar cells with the highest efficiency (12.7%) have been fabricated by a hydrazine-based solution approach, which is promising as well in the light of the production cost.…”

Structural Properties

“…The XRD study on Cu 2 Zn x Cd 1−x SnS 4 pentanary solid solution system has been performed by Xiao et al [31]. The solid solution samples were grown by the sol-gel method.…”