Thermally Responsive Electroluminescence in ZnS: Mn Phosphors: Experimental Insights
Abstract
ZnS: Mn phosphors and thin film technologies have been used to create alternative current thin film light emitters. Establishing a precise model for these devices becomes challenging because they rely on frameworks that have a definitive effect on the final product, such as the size of the molecules used, the phosphor fabrication process, and the doping concentration, the purity of ZnS, the device structure, and so forth. The ZnS: Mn phosphor, which emits yellowish-orange light, has remained dominant from its initial commercial use in monochromic displays. The phosphorescence has an extremely long lifetime and high chance of radiative recombination. The solid inorganic materials made up of a host lattice that has been lightly doped with impurities to act as sensitizers and activators. As activators or sensitizers, rare-earth ions or transition metals are typically employed electroluminescence (EL) emission is influenced by a number of parameters, including applied voltage, applied frequency, material ageing, and material kinds. This study demonstrates how the temperature of the EL cell affects the brightness of the EL. As the EL cell's temperature rises, it is possible to see a decrease in the saturation level of EL brightness as well as a decrease in the threshold voltage. This paper reports the preparation of ACTFEL cell and showing the influence of temperature on the brightness of it with varying voltage.
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D. Denzler, M. Olschewski, and K. Sattler, “Luminescence studies of localized gap states in colloidal ZnS nanocrystals,” J. Appl. Phys., vol. 84, no. 5, pp. 2841–2845, Sep. 1998.
A. A. Khosravi et al., “Green luminescence from copper doped zinc sulphide quantum particles,” Appl. Phys. Lett., vol. 67, no. 18, p. 2702, Jun. 1998.
S. J. Xu, S. J. Chua, B. Liu, L. M. Gan, C. H. Chew, and G. Q. Xu, “Luminescence characteristics of impurities-activated ZnS nanocrystals prepared in microemulsion with hydrothermal treatment,” Appl. Phys. Lett., vol. 73, no. 4, p. 478, Jul. 1998.
J. Huang, Y. Yang, S. Xue, B. Yang, S. Liu, and J. Shen, “Photoluminescence and electroluminescence of ZnS:Cu nanocrystals in polymeric networks,” Appl. Phys. Lett., vol. 70, no. 18, p. 2335, Aug. 1998.
D. Wauters, D. Poelman, and RL Van Meirhaeghe -, “Optical characterisation of SrSá: áCu and SrSá: áCu, Ag EL devices,” J. Lumin., 2000.
G. Mueller, Ed., Electroluminescence II. In Semiconductors and Semimetals, Academic Press, New York, NY, USA, vol. 65, ch. 2–4, 2000.
J. Ibañez, E. Garcia, L. Gil, M. Mollar, and B. Marı´, “Frequency-dependent light emission and extinction of electroluminescent ZnS:Cu phosphor,” Displays, vol. 28, no. 3, pp. 112–117, Jul. 2007.
P. F. Smet, I. Moreels, Z. Hens, and D. Poelman, “Luminescence in Sulfides: A Rich History and a Bright Future,” Materials (Basel)., vol. 3, no. 4, p. 2834, 2010.
Y. He et al., “Paper-based ZnS: Cu alternating current electroluminescent devices for current humidity sensors with high-linearity and flexibility,” Sensors (Switzerland), vol. 19, no. 21, Nov. 2019
R. Mach and G. O. Müller, “Physical Concepts of High-Field, Thin-Film Electroluminescence Devices,” Phys. status solidi, vol. 69, no. 1, pp. 11–66, Jan. 1982.
U.shukla “Effect of temperature on the thin film Electroluminescence of ZnS:Tb Phosphors” ISAFBM, 2019, pp. 100–103 [Online]. Available: https://www.researchgate.net/
profile/Preeti Prajapati/publication/333943061_Effect_of_hydrogen_bonding_on_vibrational_properties_and_chemical_reactivity_of_molecular_systems/links/5d0dcaf292851cf44040e856/Effect-of-hydrogen-bonding-on-vibrational-properties-and-chemical-reactivity-of-molecular-systems.pdf#page=106
U. Shukla “Electroluminescence,” Trends in Opto-Electro and Optical Communications, Vol. 11 no. 1, 2021. Available: https://engineeringjournals.stmjournals.in/index.php/TOEOC/article/
view/5683.
van Bunningen AJ, Sontakke AD, van der Vliet R, Spit VG, Meijerink A. Luminescence Temperature Quenching in Mn2+ Phosphors. Advanced Optical Materials. 2023 Mar;11(6):2202794.
U. Shukla and K. Priyadarshi, “Study on the Electroluminescence of Y 2 O 3 Material Doped with Rare Earth Elements,” RRJPAP, vol. 9, 2021.
Zhou T, Chen H, Guo J, Zhao Y, Du X, Zhang Q, Chen W, Bian T, Zhang Z, Shen J, Liu W. Unrevealing Temporal Mechanoluminescence Behaviors at High Frequency via Piezoelectric Actuation. Small. 2023 Feb;19(8):2207089.
U. Shukla and S. Gupta, “Mechanisms and Applications of Lyoluminescence,” J. Nucl. Eng. Technol., vol. 12, no. 1, pp. 1–6, Jun. 2022.
U. Shukla and G. Srivastava, “Influence of the Temperature on the Photoluminescence Intensity of the CdS:Cu Nanophosphors,” Int. J. Multidiscip. Consort., vol. 1, no. 1, pp. 1–4, 2014.
U. Shukla, “Mechanisms and Applications of Bioluminescence,” J. Pure Appl. Ind. PhysicsAn Int. Res. Journal), vol. 8(1), no. 4, pp. 1–6, 2018.
U. Shukla and S. Bari, “Study on the Photoluminescence,” Online) J. Pure Appl. Ind. Phys., vol. 8, no. 5, pp. 25–31, 2018.
U. Shukla and Mohd. Taib, “THERMOLUMINESCENCE, “Research direction,” ISSN No. 2321–5488, 2019.
Shukla, U. (2022). Bioluminescence: Biologically Living Organism. International Journal of Optical Sciences, 8(2), 9–19.
Zhang H, Wei Y, Huang X, Huang W. Recent development of elastico-mechanoluminescent phosphors. Journal of Luminescence. 2019 Mar 1;207:137–48.
Shukla, U. (2023). Recent Advances in Mechaniluminescence. Mukt Shabd Journal, 12(5),5 9–71.
Shukla Usha. (2022). Mechanism and Application of Chemiluminescence. In Naikwade V. Pratap (Ed.), Recent Advances in Basic and Applied Research (3rd ed., Vol. 5, pp. 15–24). Lambert Academic Publishing. https://www.lap-publishing.com/catalog/details/store/pt/book/978-620-4-95627-5/recent-advances-in-basic-and-applied-research?search=Recent%20Advances%20in%20Basic%20and%20Applied%20Sciences
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