One-step sonochemical synthesis route towards kesterite Cu2ZnSnS4 nanoparticles
| Autor: | Gang Fang, Zhengkai Ni, Yaocheng Liu, Weidong Tao, Jian Xu |
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| Rok vydání: | 2015 |
| Předmět: |
Materials science
Scanning electron microscope Band gap Mechanical Engineering Sonication Metals and Alloys Nanoparticle Nanotechnology engineering.material chemistry.chemical_compound symbols.namesake chemistry Mechanics of Materials Transmission electron microscopy Materials Chemistry engineering symbols CZTS Kesterite Raman spectroscopy |
| Zdroj: | Journal of Alloys and Compounds. 630:23-28 |
| ISSN: | 0925-8388 |
| Popis: | Cu 2 ZnSnS 4 (CZTS) has been considered as one of the most promising solar absorber in low-cost high-efficiency thin-film solar cells, which can be produced from CZTS nanoparticles (NPs) inks by non-vacuum fabrication techniques such as the roll-to-roll process. In this paper, one-step sonochemical synthesis towards the CZTS NPs at room temperature was studied. In the synthesis, the sonication time and the precursor’s concentration were two important factors to affect the crystal phases of the resulting NPs. Following analyses of X-ray diffraction, UV–Vis–NIR and Raman spectroscopy, high-resolution transmission electron microscopy and scanning electron microscopy with energy dispersive X-ray spectrometry, the kesterite CZTS nanocrystals with the average NP size ∼2 nm and the band gap ∼1.52 eV could be obtained with suitable precursor’s concentration and sonication time. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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