한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
권호 표지

Luminous phosphor with modified surface composition and microwave treatment for plasma planar back light

  • Ting, Chu-Chi (Central Research Institute, Chungwha Picture Tubes, Ltd) ;
  • Cheng, Hao-Ping (Central Research Institute, Chungwha Picture Tubes, Ltd) ;
  • Hsieh, Yu-Heng (Central Research Institute, Chungwha Picture Tubes, Ltd) ;
  • Sun, Oliver (Central Research Institute, Chungwha Picture Tubes, Ltd) ;
  • Chen, San-Yuan (Department of Materials Science and Engineering, NCTU) ;
  • Lin, Chin-Ching (Department of Materials Science and Engineering, NCTU) ;
  • Kuo, Kuan-Ting (Department of Materials Science and Engineering, NCTU) ;
  • Lee, Shu-Ping (Department of Materials Science and Engineering, NCTU)
  • Published : 2005.07.19
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Abstract

Highly luminescent efficiency phosphors have been successfully produced by surface modification and microwave irradiation treatment. The SEM image and XRD analysis reveal that the surface morphology of the white-light phosphors can be notably modified by microwave irradiation and exhibit with better crystalline property. The VUV PL spectra show that the microwave irradiation treatment can effectively enhance the luminescent efficiency by a factor of 1.5 times for intensity compared to that without microwave treatment. A further improvement in all visible emission can be made by modifying surface composition through MgO coating on the phosphor powder. These results demonstrate that such a simple approach can provide for improving luminescent efficiency of phosphors for the optoelectronic devices.

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