Effects of S and Se contents on the physical and photovoltaic properties of Cu2ZnSn(S Se1−)4 nanoparticles

Structural Properties

“…We show in Figure 2 [91], are also shown in Figure 2.27d. No clear difference in a eff can be observed between for the WZ-derived and kesterite-type nanocrystals.…”

“…The lattice parameters were determined using the XRD and EDX techniques. The crystal structures reported were of tetragonal [57,[87][88][89]91], a mixture of ZB-and WZ-derived structures [84], WZ-derived structure [90], and of WZ type structure [92]. The synthesized nanocrystals had a tetragonal structure over the entire composition range.…”

“…We show in Figure 2.26 the WZ lattice parameters a and c obtained by Ramasamy et al [85], together with their ratio c/a, plotted against x. CZTSSe pentanary nanocrystals were synthesized using various techniques [57,84,[87][88][89][90][91][92]. The solid lines in Figure 2 Cu 2 ZnGe x Sn 1−x S 4 nanocrystals were synthesized by Ford et al [86] via batch reaction in oleylamine (x = 0-1.0).…”

“…The structural properties of nanocrystalline Cu 2 -II-IV-VI 4 solid solutions have been reported for Cu 2 Zn x Cd 1−x SnS 4 [85], t-Cu 2 ZnGe x Sn 1−x S 4 [86], CZTSSe [57,84,[87][88][89][90][91][92], and Cu 2 CdSn(S x Se 1−x ) 4 [93]. Ramasamy et al [85] obtained WZ-phase Cu 2 Zn x Cd 1−x SnS 4 nanorods over the entire composition range by a facile solution method.…”

Electronic Energy‐Band Structure

“…These are Cu 2 Zn x Cd 1−x SnS 4 [104], Cu 2 ZnGe x Sn 1−x S 4 [105,106], and CZTSSe pentanaries [107][108][109][110][111]. These are Cu 2 Zn x Cd 1−x SnS 4 [104], Cu 2 ZnGe x Sn 1−x S 4 [105,106], and CZTSSe pentanaries [107][108][109][110][111].…”