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Engineering phosphors for improved brightness

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Abstract

Factors affecting the cathodoluminescent (CL) efficiency of phosphors include: morphology, size, stoichiometry, composition, and surface of the phosphors. In the design of phosphors for low-voltage operations, processes such as surface etching are used to enhance phosphor efficiency. In this study, zinc-activated ZnO phosphors were subjected to three processes: acid etching, ball milling, and/or ultrasonic vibration, and the effect of each process on the CL efficiency studied. It is found that the brightness of phosphors increases 40% after ultrasonic vibration followed by etching twice with 0.005 M HNO3.

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Authors and Affiliations

  1. Department of Electronics Engineering and Institute of Electronics, National Chiao Tung University, Hsinchu, Taiwan

    C. H. Lin & Bi-Shiou Chiou

  2. Electronic Research Service Organization, Industrial Technology Research Institute, Hsinchu, Taiwan

    J. D. Lin

Authors
  1. C. H. Lin
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  2. Bi-Shiou Chiou
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  3. J. D. Lin
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Lin, C.H., Chiou, BS. & Lin, J.D. Engineering phosphors for improved brightness. Journal of Materials Science: Materials in Electronics 13, 705–711 (2002). https://doi.org/10.1023/A:1021556803612

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  • DOI: https://doi.org/10.1023/A:1021556803612

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