Synthesis and Electroluminescence Studies of CdSe Nanocrystals Embedded in PVK Matrix

Authors

  • Kumari S Department of Physics & Electronics, Rani Durgavati Vishwavidhyalaya, Jabalpur, India
  • Dubey S Department of Physics & Electronics, Rani Durgavati Vishwavidhyalaya, Jabalpur, India
  • Ramrakhiani M Department of Physics & Electronics, Rani Durgavati Vishwavidhyalaya, Jabalpur, India

Keywords:

CdSe/PVK nanocomposites and Electroluminescence (EL)

Abstract

There is currently a great interest in semiconductor nanoparticles which are organically capped or embedded in polymeric matrices for their ready to use application in devices. These materials show excellent optical and mechanical behaviour at Nano scale. Nano crystalline powder and nanocomposites of II-VI compounds with different doping are being prepared by various routes. Poly-vinylcarbozole (PVK) is a hole transport organic semiconducting polymer. It has been widely used as an organic and optical material. Combination of polymer and semiconductor nanocrystals allows the fabrication of flexible and light weight EL devices. Electroluminescence of the films was studied at different voltage and frequency by placing the films between ITO coated conducting glass plate and aluminium electrodes. It is found that a turn on voltage is required for light emission and brightness increases exponentially with voltage. Turn on voltage is found to decrease as CdSe concentration is increased.

References

[1] Han, D. Qin, X. Jiang et al., “Synthesis of high quality zinc-blende CdSe nanocrystals and their application in hybrid solar cells,” Nanotechnology, vol. 17, no. 18, pp.4736–4742, 2006.

[2] R. E. Bailey, A. M. Smith, and S. Nie, “Quantum dots in biology and medicine,” Physica E, vol. 25, no. 1, pp. 1–12, 2004.

[3] O. Niitsoo, S. K. Sarkar, C. Pejoux, S. Ruhle, D. Cahen, and G. Hodes, “Chemical bath deposited CdS/CdSe-sensitized porous TiO2 solar cells,” Journal of Photochemistry and Photobiology A: Chemistry, vol. 181, no. 2-3, pp. 306–313, 2006.

[4] Guo, C., Lin, Y. H., Witman, M. D., Smith, K. A., Wang, C., Hexemer, A.Verduzco, R. “Conjugated block copolymer photovoltaics with near 3% efficiency through microphase separation”, Nano letters, 13(6), 2957-2963. 2013 .

[5] IAnn Lei, DaiFu Lai, TrongMing Don, WenChang Chen, YangYen Yu, and WenYen Chiu, Mater. Chem. Phys. 144, 41, 2011

[6] J.Y. Suh, C.H. Kim, W. Zhou, M.D. Huntington, D.T.Co, M.R. Wasielewski, T.W. Odom, “Plasmonic bowtie nanolaser arrays”, Nano Lett. 12, 5769–5774, 2012.

[7] A. Agrawal, C. Susut, G. Stafford, U. Bertocci, B. McMorran, H. J. Lezec, and A. A. Talin, “An integrated electrochromic nanoplasmonic optical switch”, Nano Lett. 11, 2774, 2011.

[8] O. S. Oluwafemi, “A novel”green” synthesis of starch-capped CdSe nanostructures,” Colloids and Surfaces B: Biointerfaces, vol. 73, no. 2, pp. 382–386, 2009.

[9] D.Jiang, L. Ding, J. Huang ,E.Gu, L. Liu, Z. Chai, D. Liu, Synthesis and characterization of photorefractive polymer based on chemically hybridized CdSePVK nanocomposite with a new azo chromophore , Polymer, 48, 7156e7162, 2007.

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Published

2025-11-25

How to Cite

[1]
S. Kumari, S. Dubey, and M. Ramrakhiani, “Synthesis and Electroluminescence Studies of CdSe Nanocrystals Embedded in PVK Matrix”, Int. J. Comp. Sci. Eng., vol. 7, no. 10, pp. 172–174, Nov. 2025.

Issue

Vol. 7 No. 10 (2019): IJCSE Special Issue May Edition

Section

Research Article

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