NDLI: Influence of Li+ and Nd3+ co-doping on structural and optical properties of l-arginine-passivated ZnS nanoparticles

Content Provider	Springer Nature Link
Author	Talwatkar, S. S. Sunatkari, A. L. Tamgadge, Y. S. Pahurkar, V. G. Muley, G. G.
Copyright Year	2014
Abstract	We report the effect of Li + and Nd3+ co-doping on structural and optical properties of l-arginine-passivated ZnS nanoparticles (NPs) synthesized by chemical co-precipitation method. High-resolution transmission electron microscopy (HR-TEM) and X-ray diffraction study were used to explore the morphological and structural aspects of prepared NPs. HR-TEM analysis confirmed that the size of ZnS NPs reduces from 5 to 3 nm as the concentration of co-dopant increases from 1 to 5 wt%. Ultraviolet–visible absorption spectra show absorption peaks in the range of 295–315 nm indicating huge blue shift as compared to the bulk ZnS (340 nm, E g = 3.6 eV) due to the quantum confinement effect. The large optical band gap was estimated in the range of 3.95–4.62 eV and found increasing as the co-dopant concentration increases. Photoluminescence spectra showed that co-doped ZnS NPs emit multiple intense violet-colored (370, 375, 380, 388 and 398 nm) and blue-colored (425, 448, 455 and 465 nm) peaks with increasing intensity. Fourier transform infrared study confirmed the strong interaction between ZnS NPs and l-arginine ligands. The presence of co-dopant in the sample is confirmed by energy dispersive X-ray analysis. Based on the results, we proposed that this material is a new class of luminescent material suitable in optoelectronics devices application, especially in light-emitting devices, electroluminescent devices, display devices, etc.
Starting Page	675
Ending Page	682
Page Count	8
File Format	PDF
ISSN	09478396
Journal	Applied Physics A
Volume Number	118
Issue Number	2
e-ISSN	14320630
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-09-16
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Condensed Matter Physics Optical and Electronic Materials Nanotechnology Characterization and Evaluation of Materials Surfaces and Interfaces, Thin Films Operating Procedures, Materials Treatment
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Science

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