Study on effects of time and temperature on growth of nanocrystalline zinc selenide synthesized by hydrothermal method

Study on Raman spectra of zinc selenide nanopowders synthesized by hydrothermal method

“…The above results indicate that the growth of the ZnSe nanoparticles from solution is inhomogeneous and the inhomogeneous growth mechanism was studied in our previous work [10]. Here the Raman spectra of the ZnSe nanopowders were analyzed emphatically.…”

“…The ZnSe nanopowders were prepared from sodium hydroxide solution by hydrothermal method at different temperatures [10]. The 0.8 g of zinc powder (90%), 1.09 g of selenium power (99.95%) and 6.4 g of sodium hydroxide powder (96%) were mixed in about 40 ml of deionized water in a Teflon-lined autoclave of 50 ml capacity.…”

“…As shown in Fig. 1, there exists residual zinc in every reaction process, thus the interface between the ZnSe and Zn particles can be formed because ZnSe nucleates on the surface of a zinc particle in sodium hydroxide solution [10]. Zhang et al studied the Raman scattering on CdSe/ZnTe superlattice to find an interface vibration mode between the CdSe and ZnTe layers, which is attributed to the stretching of a localized Zn-Se bond in the interface [13].…”

Raman scattering and photoluminescence of zinc telluride nanopowders at room temperature

“…[2]. 0.67 g of zinc powder (90%), 1.32 g of tellurium powder (99.999%) and 6.41 g of sodium hydroxide powder (96%) were mixed in about 40 mL deionized water in a Teflon-lined autoclave of 50 mL capacity.…”

“…Jie et al [1] reviewed the advances in synthesis, properties, and optoelectronic applications of one-dimensional II-VI nanostructures and suggested that the preparation and properties of II-VI nanostructures should be further studied for their applications. In the previous work, we studied the hydrothermal synthesis of zinc selenium nanopowders and Raman scattering from them [2,3]. In this work, we study the properties of the zinc telluride (ZnTe) nanopowders.…”