Manganese doped zinc sulphide as an electroluminescent phosphor.
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Manganese doped zinc sulphide as an electroluminescent phosphor. by Declan Macken

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Published by The Author] in [S.l .
Written in English


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Thesis (D. Phil.) - University of Ulster, 1993.

ID Numbers
Open LibraryOL19839229M

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Zinc sulfide phosphors are used with radioactive materials, where the phosphor was excited by the alpha- and beta-decaying isotopes, to create luminescent paint for dials of watches and instruments (radium dials).Between and radium and radium were used to activate a phosphor made of silver doped zinc sulfide (ZnS:Ag), which gave a greenish glow. Thin-film electroluminescent structures (TFELS) based on calcium sulfide doped with cerium have long evoked interest, especially in recent years. Such systems feature a higher quantum yield compared with traditional zinc-sulfide doped with manganese due to the screened state of the shells within. Results are presented from a systematic investigation to design and optimize a low-pressure chemical vapor deposition (CVD) process for manganese-doped zinc sulfide (ZnS:Mn) thin films for. An Electroluminescent Device Using Sintered Manganese-Doped Zinc Sulfide Phosphor Ceramics. Cathode-Zinc Sulphide Barrier Heights and Electron Injection in Direct Current Thin Film Electroluminescent Devices. Electroluminescence Book Subtitle Proceedings of the Fourth International Workshop Tottori, Japan, October 11–14,

Using manganese yields an orange-red color at around nanometers. Copper gives long-time glow, and it has the familiar greenish glow-in-the-dark. Copper-doped zinc sulfide ("ZnS plus Cu") is used also in electroluminescent panels. [2] It also exhibits phosphorescence due to impurities on illumination with blue or ultraviolet light. Optical. Request PDF | Chemistry and Synthesis of Inorganic Light-Emitting Phosphors | The synthesis of phosphors is described in terms of the broad range of techniques that have been utilized in different.   Abstract. ZnS and Cu 2+ ( and %) doped ZnS (i.e., ZnS:Cu) nanoparticles (NPs) are synthesized by chemical co-precipitation method at room temperature. X-ray diffraction (XRD) studies and the analysis of the selected area electron diffraction pattern (SAED) obtained from transmission electron microscopy (TEM) confirmed the formation of zinc blende structure of all the synthesized Author: A. K. Kole, P. Kumbhakar. Electroluminescence: proceedings of the fourth international workshop Tottori, Japan, October , An Electroluminescent Device Using Sintered Manganese-Doped Zinc Sulfide Phosphor Ceramics.- Role of Sulfur Vacancies in Luminescence of Pure CaS.- proceedings of the fourth international workshop Tottori, Japan, October

Bredhikhin and Shmurak exposed that pure zinc sulphide was mechanoluminescent and exhibited the lightning lines characteristics of FML. Later, ZnS doped with small percentage of strongly luminescent transition metal ions, such as copper, manganese,,,, and even silver has been studied for strong ML under by: 1. The handbook of electroluminescent materials D R Vij, Institute of Physics (Great phosphor emitting electroluminescence lattice luminescent gan density conduction Post a Review You can write a book review and share your experiences. Other readers will always be interested in your opinion of the. Zinc sulfide, with addition of few ppm of suitable activator, is used as phosphor in many applications, from cathode ray tubes through X-ray screens to glow in the dark products. When silver is used as activator, the resulting color is bright blue, with maximum at nanometers. Using manganese yields an orange-red color at around Rating: % positive. This chapter focuses on electroluminescent (EL) devices and electrical energy that is converted to visible light by a nonthermal process. The EL devices can be divided into two classes: (1) light-emitting diodes (LEDs), where the light is generated by electron-hole pairs, and (2) high-energy EL devices, where the high-energy electrons excite the emitting centers (dopant ions) to give by: 6.