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Preparation and Properties of ultrafine phosphor

Author: LiuShiYi
Tutor: LiJunJian
School: University of Electronic Science and Technology
Course: Physical Electronics
Keywords: Urea sol-gel method Phosphor Ultrafine particles Nano
CLC: TN104.3
Type: Master's thesis
Year: 2001
Downloads: 217
Quote: 3
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Abstract


This thesis described in detail using the sol-gel method of urea synthesis spherical , uniform particles , the particle diameter of 100-200nm ultrafine Y of 2 O 3 : Eu red phosphor experiment , reported for the first time in the current domestic and foreign literature knowable within urea sol-gel method for the successful synthesis of ultra-fine particle size of 125-250nm, spherical uniform Y- 2 O : Tb green phosphor experiment. Different ignition temperature of ultrafine phosphor grain size and morphology were observed and photographed under a scanning electron microscope (SEM) . The diffraction pattern measured by X-ray diffraction (XRD) , microscopic crystal structure analysis . Their emission spectra were measured on a dynamic tester luminance luminescence curve , and Japanese commercial projection tube phosphors are compared . Characteristics of ultrafine phosphor prepared from the aspects of intensive research . The thesis is divided into six chapters, which consists of three parts . The first part of the first two chapters , the history of the development of the phosphor , the phosphor display technology performance requirements in the future , and phosphor luminescence mechanism of the light-emitting materials . The second part of Chapter alone constitute mainly talk about home and abroad synthetic nano or ultrafine phosphor and the subject experimental design . The third part consists of four chapters composed Experimental Preparation of ultrafine red and green phosphor , and on their performance during the study , as well as a large number of measurement data is described in detail . Last elaborated to summarize and ultrafine phosphor performance improvements put forward some ideas on the subject .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Vacuum Electronics > General issues > Electric vacuum device materials > Display materials
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