Bibliographic Details
| Title: |
Solvothermal synthesis of kesterite Cu2ZnSnS4 nanocrystals: Influence of glycine complexing agent concentration on properties. |
| Authors: |
Al-Hadeethi, Y.1,2 (AUTHOR) al_hadithi2001@yahoo.com, Mkawi, E.M.1,2,3 (AUTHOR), Al-Hartomy, Omar1,2 (AUTHOR), Bekyarova, E.4 (AUTHOR) |
| Source: |
Ceramics International. Apr2021, Vol. 47 Issue 8, p11568-11573. 6p. |
| Subjects: |
Glycine agents, Kesterite, Band gaps, Nanocrystals, Thin films, Solar cells |
| Abstract: |
We fabricated pure kesterite Cu 2 ZnSnS 4 (CZTS) nanocrystals for solar cells by solvothermal synthesis. We investigated the effects of 0.5–2 mg/mL glycine complexing agent on the nanocrystals' properties by comprehensive spectroscopic and microscopic analysis, focusing on structural, morphological, compositional, and chemical properties. By controlling the glycine concentration, we obtained complete single-phase nanocrystals: high purity, good crystallinity, and copper-poor and Zn-rich composition. The nanocrystal diameter ranged ~50–60 nm. Thin films based on the nanocrystals were smooth, compact, free of cracks and holes, and had a grain size of up to 2.8 μm. The nanocrystals have an optical band gap between 1.51 and 2.27 eV and an absorption coefficient greater than 104 cm−1. The nanocrystal properties indicate promise for high-efficiency CZTS solar cells. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
