Characterization of Cu
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Cu<inf>3</inf>SnS<inf>4</inf>nanoparticles and nanostructured flowers were synthesized by 100, 300, 600, and 800 W microwave refluxing of the mixture containing 3 mmol CuCl<inf>2</inf>\Cdot2H<inf>2</inf>O, 1 mmol SnCl<inf>2</inf>\Cdot2H<inf>2</inf>O, and 4 mmol thiosemicarbazide (NH<inf>2</inf>NHCSNH<inf>2</inf>) in 50 ml ethylene glycol (HOCH<inf>2</inf>CH<inf>2</inf>OH). X-ray diffraction (XRD), selected area electron diffraction (SAED), X-ray photoelectron spectroscopy (XPS), scanning and transmission electron microscopy (SEM and TEM), Raman analysis, and photoluminescence (PL) spectrophotometry revealed the morphology transformation of pure tetragonal Cu<inf>3</inf>SnS<inf>4</inf>with nanoparticles at 100 W into three-dimensional (3D) hierarchical flower-like structure at 800 W, including the presence of 2Cu<sup>+</sup>, Cu<sup>2+</sup>, Sn<sup>4+</sup>, and 4S<sup>2-</sup>containing in the sulfide, the PL emission of the 3D hierarchical flower-like Cu<inf>3</inf>SnS<inf>4</inf>at 366 nm, and the prominent Raman peak of Cu--Sn vibration at 319 cm<sup>-1</sup>. In this research, a formation mechanism was also proposed according to the experimental results.
- Jpn J Appl Phys
Jpn J Appl Phys 52(11), 111201-111201-4, 2013-11-25
The Japan Society of Applied Physics