ZnS Microbelts

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Study on Structures and Photoluminescence Emission of ZnS Microcrystals Grown by Thermal Deposition

In this work, we report on the controlled synthesis of ZnS microstructures with high purity on Au-coated silicon substrates by thermal evaporation of ZnS powder in Ar gas ambient at atmospheric pressure. The growth mechanism is confirmed as a typical vapor–liquid–solid (VLS) process. The prepared ZnS microstructures have wurtzite (hexagonal) structures. The catalytically grown ZnS microstructures, including microwires and microbelts, are tens of micrometers in length.

8p truongtien_09 08-04-2018 19 0 Download

Blue, Green and Yellow Emissions at the Same Time from Mn-doped ZnS Microbelts

An investigation of the morphology, structure, composition and optical properties of ZnS:Mn2+ microbelts grown by the thermal evaporation method using ZnS powder and MnCl2.4H2O powder as precursor materials is presented. The SEM images of the products show that ZnS:Mn2+ microbelts are bigger and shorter than ZnS microbelts. EDS reveals that the composition of the microbelts include Zn, S, O, Mn and Cl elements.

6p truongtien_09 08-04-2018 32 1 Download