Preparation and improvement in luminescence property of ZnWO4 phosphors by Sol-gel method

• Main Authors: Woan-Ling Wu, 吳婉伶
• Other Authors: Su-Hua Yang
• Format: Others
• Language: en_US
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/97348308724320122094

碩士 === 國立高雄應用科技大學 === 電子工程系 === 98 === In this study, the ZnWO4 phosphor was synthesized by sol-gel method. Zinc (Zn) and tungsten (W) compounds were used as source materials. From the evaluation of synthesis parameters of mixed temperature, aging time, standing time, sintering temperature and time, it is found that the synthesis parameters indeed affect the particle size and luminescence intensity of the phosphor. The characteristics of the phosphors synthesized by sol-gel method and solid state reaction were compared and discussed. Additionally, the electroluminescence device (ELD) was fabricated, in which the phosphor synthesized at optimal parameters was used as emission layer. The luminance and CIE coordinates of the ELD were measured.