Research on blue emitting BaAl2S4: Eu phosphor layers of TFEL

Zhao Ding; Zhinong Yu; Wei Xue

doi:10.1117/12.791191

12 March 2008 Research on blue emitting BaAl₂S₄: Eu phosphor layers of TFEL

Zhao Ding, Zhinong Yu, Wei Xue

Proceedings Volume 6624, International Symposium on Photoelectronic Detection and Imaging 2007: Optoelectronic System Design, Manufacturing, and Testing; 66241W (2008) https://doi.org/10.1117/12.791191
Event: International Symposium on Photoelectronic Detection and Imaging: Technology and Applications 2007, 2007, Beijing, China

Abstract

Europium-doped barium thioaluminate based on BaAl₂S₄: Eu is currently the most efficient blue phosphor for inorganic thin film electroluminescence. Many researchers and experts have been investigating on this material and have also got great achievements. The phosphors exhibit EL luminescence up to 900cd/m², peak efficiency over 1 lm/W, and long life time of 30 thousand hours, which is sufficient to TV display application. In this work we will review the experimental research process of the fabrication on the BaAl₂S₄:Eu phosphor layers, introduce the four main methods of fabricating the blue emitting phosphors: two targets pulse electron beam evaporation; four targets pulse electron beam evaporation; two targets sputter deposition and one target sputter deposition. Finally we will also summarize the principal conclusions drawn from those experiments mentioned above, which will be beneficial to our research in the future.

Citation Download Citation

Zhao Ding, Zhinong Yu, and Wei Xue "Research on blue emitting BaAl₂S₄: Eu phosphor layers of TFEL", Proc. SPIE 6624, International Symposium on Photoelectronic Detection and Imaging 2007: Optoelectronic System Design, Manufacturing, and Testing, 66241W (12 March 2008); https://doi.org/10.1117/12.791191

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