Investigating the luminescent property of transition metal doped ZnS nanoparticles synthesised by co-precipitation method

Abstract

The group II-IV nanoparticles have excellent semiconducting properties having a possibility of tuning it by changing the size, shape and precursors. This makes them an ideal candidate for their applications in the field of science and technology. Amongst several semiconductor nanoparticles, zinc sulphide (ZnS) nanoparticles are promising material because of chemical stability, low toxicity and better optical properties. Introducing transition metal impurities in ZnS nanoparticles further improves the physical properties like optical and magnetic. The synthesis and optical properties of transition metal doped ZnS nanoparticles with varying doping percentage is reported. The doping of ZnS with the transition metal with variable doping concentration improves the luminescence in comparison of pure ZnS. The photoluminescence spectrum has a single major peak at 780nm, and the intensity increases with the type and concentration of the impurity but at higher concentration the luminescence is quenching. This paper tries to give a comprehensive study of photoluminescence of ZnS nanoparticles doped with different transition metal with varying concentration.

Defect engineering for enhanced optical and photocatalytic properties of ZnS nanoparticles synthesized by hydrothermal method

“…It is considered a viable candidate for light-emitting diodes, electroluminescent devices, flat panel displays, infrared windows, sensors, lasers, and solar cells 1 – 3 . Numerous methods, including electrochemical deposition, microemulsion 4 , solvothermal 5 , sol–gel 6 , co-precipitation 7 , combustion synthesis 8 , pyrolysis, hydrothermal, laser ablation, and vapor deposition 9 , have been used to fabricate ZnS nanostructures. The hydrothermal method is adaptable, productive, and able to be adjusted; it doesn't require milling or calcination, has low contamination, and is cost-effective.…”

Zns Nanocrystals Were Prepared by Co-precipitation Method and Their Structure and Optical Properties Were Studied

“…ZnS applied in luminescent materials generally has zinc blende structure [8]. The optical properties of ZnS doped with different transition metal ions and the potential applications of these luminescent materials have been reported by different research group [9][10][11][12][13]. Different metal ions doped with ZnS have been studied by many researchers because of their extensive optical properties.…”

“…Generally, ZnS doped with transition metal ion provide new opportunities for research and different applications. Now days, different synthesis techniques are being used to prepare pure ZnS and doped with transition metal ions semiconductors nanoparticles [11,[14][15][16][17][18]. For the synthesis of ZnS nanoparticles chemical co precipitation method was used.…”

Influence of L-cysteine engineering on structural and optical properties of nanocrystalline ZnS synthesized by the cost effective chemical co-precipitation method

“…The ZnS nanoparticle synthesized by various methods are green synthesis [6], simple coprecipitation method [7][8][9][10], microwave irradiation method [11], sonochemical method, chemical vapor deposition [12], mechanochemical, solid state reaction, microwave hydrothermal, microwave assisted solvothermal, sol-gel and green synthesis [13]. Among this method, coprecipitation method has enhanced nano property and tunes the size and shape of nanoparticles.…”