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Wurtzite copper-zinc-tin sulfide as a superior counter electrode material for dye-sensitized solar cells.

Kong J, Zhou ZJ, Li M, Zhou WH, Yuan SJ, Yao RY, Zhao Y, Wu SX - Nanoscale Res Lett (2013)

Bottom Line: Wurtzite and kesterite Cu2ZnSnS4 (CZTS) nanocrystals were employed as counter electrode (CE) materials for dye-sensitized solar cells (DSSCs).Compared to kesterite CZTS, the wurtzite CZTS exhibited higher electrocatalytic activity for catalyzing reduction of iodide electrolyte and better conductivity.Accordingly, the DSSC with wurtzite CZTS CE generated higher power conversion efficiency (6.89%) than that of Pt (6.23%) and kesterite CZTS (4.89%) CEs.

View Article: PubMed Central - HTML - PubMed

Affiliation: The Key Laboratory for Special Functional Material of MOE, Henan University, Kaifeng 475004, China. zzj@henu.edu.cn.

ABSTRACT
Wurtzite and kesterite Cu2ZnSnS4 (CZTS) nanocrystals were employed as counter electrode (CE) materials for dye-sensitized solar cells (DSSCs). Compared to kesterite CZTS, the wurtzite CZTS exhibited higher electrocatalytic activity for catalyzing reduction of iodide electrolyte and better conductivity. Accordingly, the DSSC with wurtzite CZTS CE generated higher power conversion efficiency (6.89%) than that of Pt (6.23%) and kesterite CZTS (4.89%) CEs.

No MeSH data available.


X-ray diffraction patterns of the as-obtained CZTS thin films after annealing.
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Figure 1: X-ray diffraction patterns of the as-obtained CZTS thin films after annealing.

Mentions: Crystal structures of the CZTS thin films after annealing were confirmed by XRD patterns (Figure 1). The major diffraction peaks of the kesterite CZTS thin film can be indexed to kesterite CZTS (JCPDS 26–0575) [22-24] (red curve) and to cation-disordered wurtzite CZTS [25] (black curve), respectively. No characteristic peaks of other impurities are detected, such as ZnS, CuS, or Cu2S.


Wurtzite copper-zinc-tin sulfide as a superior counter electrode material for dye-sensitized solar cells.

Kong J, Zhou ZJ, Li M, Zhou WH, Yuan SJ, Yao RY, Zhao Y, Wu SX - Nanoscale Res Lett (2013)

X-ray diffraction patterns of the as-obtained CZTS thin films after annealing.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4228334&req=5

Figure 1: X-ray diffraction patterns of the as-obtained CZTS thin films after annealing.
Mentions: Crystal structures of the CZTS thin films after annealing were confirmed by XRD patterns (Figure 1). The major diffraction peaks of the kesterite CZTS thin film can be indexed to kesterite CZTS (JCPDS 26–0575) [22-24] (red curve) and to cation-disordered wurtzite CZTS [25] (black curve), respectively. No characteristic peaks of other impurities are detected, such as ZnS, CuS, or Cu2S.

Bottom Line: Wurtzite and kesterite Cu2ZnSnS4 (CZTS) nanocrystals were employed as counter electrode (CE) materials for dye-sensitized solar cells (DSSCs).Compared to kesterite CZTS, the wurtzite CZTS exhibited higher electrocatalytic activity for catalyzing reduction of iodide electrolyte and better conductivity.Accordingly, the DSSC with wurtzite CZTS CE generated higher power conversion efficiency (6.89%) than that of Pt (6.23%) and kesterite CZTS (4.89%) CEs.

View Article: PubMed Central - HTML - PubMed

Affiliation: The Key Laboratory for Special Functional Material of MOE, Henan University, Kaifeng 475004, China. zzj@henu.edu.cn.

ABSTRACT
Wurtzite and kesterite Cu2ZnSnS4 (CZTS) nanocrystals were employed as counter electrode (CE) materials for dye-sensitized solar cells (DSSCs). Compared to kesterite CZTS, the wurtzite CZTS exhibited higher electrocatalytic activity for catalyzing reduction of iodide electrolyte and better conductivity. Accordingly, the DSSC with wurtzite CZTS CE generated higher power conversion efficiency (6.89%) than that of Pt (6.23%) and kesterite CZTS (4.89%) CEs.

No MeSH data available.