High-Luminance Thin Film Electroluminescent Devices Using Monoclinic Y2O3 Phosphor Activated with Mn.
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A new Mn-activated yttria (Y<FONT SIZE="-1"><SUB>2</SUB></FONT>O<FONT SIZE="-1"><SUB>3</SUB></FONT>:Mn) phosphor with a high luminous efficiency was developed using monoclinic Y<FONT SIZE="-1"><SUB>2</SUB></FONT>O<FONT SIZE="-1"><SUB>3</SUB></FONT> as the host material. The monoclinic Y<FONT SIZE="-1"><SUB>2</SUB></FONT>O<FONT SIZE="-1"><SUB>3</SUB></FONT>:Mn phosphor thin films were prepared on substrates at a temperature of below approximately 400°C and postannealed at a temperature of approximately 1020°C in Ar atmosphere. Luminances of 7440 and 538 cd/m<FONT SIZE="-1"><SUP>2</SUP></FONT> and luminous efficiencies of 1.1 and 10.1 lm/W for yellow emission were obtained for a thin-film electroluminescent device fabricated using monoclinic Y<FONT SIZE="-1"><SUB>2</SUB></FONT>O<FONT SIZE="-1"><SUB>3</SUB></FONT>:Mn phosphor and driven at 1 kHz and 60 Hz, respectively.
- 公益社団法人 応用物理学会の論文
公益社団法人 応用物理学会 | 論文
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