Synthesis and Characterization of ZnSe/PVA nanocomposites for optical devices
Main Article Content
Abstract
This paper reports in situ preparation of ZnSe-PVA nanocomposite film using ecofriendly, safe, inexpensive, facile and non-organometallic synthetic chemical route, with PVA as the stabilizing agent. The XRD studies showed the formation of cubic ZnSe nanoparticles in PVA matrix with an average size of ~7 nm. Energy band gap determined by absorption edge of UV-VIS absorption spectra revealed increase in band gap with decrease in particle size. The optical properties like Refractive index and Photoluminescence (PL) of ZnSe /PVA with varying concentration of ZnSe content are also reported. The blue shift was found due to size reduction of ZnSe nanoparticles in PVA matrix.
Downloads
Article Details
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
References
C. B. Murray, C. R. Kaganand, M. G. Bavendi, Self-Organization of CdSe Nanocrystallites into Three-Dimensional Quantum Dot Superlattices, Science, 270: 1335-1338, 1995.
J. H. Fendler, F. C. Maldrum, The Colloid Chemical Approach to Nanostructured Materials, Advance Materials, 1995.
B. O. Dabbouri, J. R. Viejo, F. B. Mikules, J. R. Heins, H. Mattonoro, R. Ober, K. F. Jonsen, M. G. Bawendi, (CdSe)ZnS Core−Shell Quantum Dots: Synthesis and Characterization of a Size Series of Highly Luminescent Nanocrystallites, J Phys Chem B, 9463-9475, 1997.
V. Platschek, B. Schreder, K. Herz, U. Hilbert, W. Ossau, G. Schottner, O. Rahauser, T. Bischof, G. Lermann, A. Malemy, W. Keifer, G. Bacher, A. Forchel, D. Su, M. Glusig, G. Muller, L. Spanhal, Sol−Gel Synthesis and Spectroscopic Properties of Thick Nanocrystalline CdSe Films, J Phys Chem B, 101:8898-8906,1997.
W. W C. Chan, and N. Shuming, Quantum Dot Bioconjugates for Ultrasensitive Nonisotopic Detection, Science 281 (1998) 2016-2018.
X.D. Ma, X. F. Qian, J. Yin, Z. K. Zhu, Preparation and characterization of polyvinyl alcohol-selenide nanocomposites at room temperature, J. Mater. Chem., 12: 663-666, 2002.
K. L. Chopra, R. C. Kainthla, D. K. Pandya, A. P. Thakoor. In: Physics of Thin Films, Academic Press, New York and London, 12:167, 1982.
H. Su, Y. Xie, B. Li, Y. Qian, A simple, Convenient, mild hydrothermal route to nanocrystalline CuSe and Ag2Se, Mater. Res. Bull., 35: 465-469, 2000.
V. Lahariya, Luminescence study of ZnSe/PVA (polyvinyl alcohol) composite film, AIP Conference Proceedings, 1728:020575, 2016.
B. Pejova, I. Grozdanov, Three-dimensional confinement effects in semiconducting zinc selenide quantum dots deposited in thin-film form, Mater. Chem. Phy. 90: 35-46, 2005.
Y. Badr, M. A. Mahmoud, Effect of PVA surrounding medium on ZnSe nanoparticles: Size, optical, and electrical properties, Spectrochimica Acta Part A, 65: 584-590, 2006.
N. Kumbhojkar, V. V. Nikesh, A. Kshirsagar, Photophysical properties of ZnS nanoclusters, AIP , Journal of Applied Physics, 88:6260, 2008.
P. E. Lippens, M. Lannoo, Optical properties of II-VI semiconductor nanocrystals, Semi. Sci. Tech. 6:157- 160, 1991.
W. Wang, Y. Geng, P. Yan, .F Liu, Y. Xie, Q. Yitai, A. Novel Mild Route to Nanocrystalline Selenides at Room Temperature, J. Am. Chem. Soc., 121:4062-4063, 1999.
M. Nirmal, L. Brus, Luminescence Photophysics in Semiconductor Nanocrystals, Acc. Chem. Res.,32 (5): 407-414, 1999.
K. Kushwaha, N. Gautam, P. Singh, M. Ramrakhaini, J. of Physics: Journal of Physics: Conference Series, 365: 012014, 2012.
J. L. H. Chau, Y. M, Lin, A. K. Li, W. F. Su, K. S. Chang, S. L. C. Hsu, T. L. Li, Transparent high refractive index nanocomposite thin films, Materials Letters, 61:2908-2910, 2007.