Rapid synthesis of sphere-like Cu2ZnSnS4 microparticles by microwave irradiation

In the present work, a pioneering attempt has been made for the rapid synthesis of Cu2ZnSnS4 (CZTS) microspheres by the microwave-assisted solution method. X-ray diffraction (XRD) and Raman spectroscopy confirmed the formation of single phase CZTS with tetragonal crystal structure. Scanning electron...

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Bibliographic Details
Published in:Materials letters 2012-11, Vol.86, p.174-177
Main Authors: Saravana Kumar, R., Ryu, Beo Deul, Chandramohan, S., Seol, Jin Kyung, Lee, Sang-Kwon, Hong, Chang-Hee
Format: Article
Language:English
Subjects:
absorption
crystal structure
Cu2ZnSnS4
Electron microscopy
irradiation
Microparticles
Microwave synthesis
microwave treatment
Raman spectroscopy
scanning electron microscopes
scanning electron microscopy
Solar energy materials
transmission electron microscopy
X-ray diffraction
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Summary:In the present work, a pioneering attempt has been made for the rapid synthesis of Cu2ZnSnS4 (CZTS) microspheres by the microwave-assisted solution method. X-ray diffraction (XRD) and Raman spectroscopy confirmed the formation of single phase CZTS with tetragonal crystal structure. Scanning electron microscope (SEM) and transmission electron microscope (TEM) showed the formation of sphere-like CZTS microparticles. Optical absorption studies revealed that CZTS microparticles have an optical band gap of 1.76eV, which is optimal for photovoltaic applications. The simplicity, rapidity, and commercial feasibility of the current synthesis strategy would be beneficial for the low-cost and large-scale industrial production of CZTS. [Display omitted] ► Cu2ZnSnS4 microparticles were synthesized by microwave-assisted solution method. ► XRD and Raman confirmed the formation of single phase tetragonal Cu2ZnSnS4. ► SEM revealed sphere-like Cu2ZnSnS4 microparticles. ► Cu2ZnSnS4 microparticles exhibited strong photon absorption in the entire visible range.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2012.07.059