Applied Physics A

, Volume 118, Issue 2, pp 675–682 | Cite as

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

  • S. S. Talwatkar
  • A. L. Sunatkari
  • Y. S. Tamgadge
  • V. G. Pahurkar
  • G. G. MuleyEmail author


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.


Quantum Confinement Effect NdCl3 Effective Mass Approximation Neodymium Oxide Linear Optical Property 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



Authors are thankful to the Director, SAIF facility, IIT-Bombay for providing FTIR, HR-TEM and EDAX facility and the Chairman, DST-FIST, SGB Amravati University for providing XRD and PL facility.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • S. S. Talwatkar
    • 1
  • A. L. Sunatkari
    • 2
  • Y. S. Tamgadge
    • 3
  • V. G. Pahurkar
    • 4
  • G. G. Muley
    • 4
    Email author
  1. 1.Department of PhysicsN. G. Aacharya and D.K. Marathe College of Arts, Science and CommerceChembur, MumbaiIndia
  2. 2.Department of PhysicsSiddharth College of Arts, Science and CommerceFort, MumbaiIndia
  3. 3.Department of PhysicsShri Shivaji Arts, Commerce and Science CollegeAkolaIndia
  4. 4.Department of PhysicsSant Gadge Baba Amravati UniversityAmravatiIndia

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