Optical and photoluminescent properties of plasma polymer films used in electroluminescent display structures |
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Authors: | E Radeva K Kolentsov L Yourukova D Zhechev E Dimova |
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Institution: | Georgi Nadjakov Institute of Solid State Physics, Bulgarian Academy of Sciences 72, Tzarigradsko Chaussee, Blvd. 1784 Sofia, Bulgaria |
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Abstract: | The optical and photoluminescent properties of plasma polymer layers synthesized from hexamethyldisiloxane are examined. The value of the polymer layer transparence is in the limits from 55% at 400 nm to 88% at 800 nm. Photoluminescence is stimulated by using the spectral line λ=365 nm emitted by a Hg spectral lamp.The organosilicon plasma polymers are included as protective and capsulating layers in electroluminescent (EL) structures. The structure obtained is characterized by a significant increase in emission brightness, compared to inorganic protective layers. For EL structures with a chalcogenide protective layer the increase is more than 6 times and for structures with heterogeneous matrix on the base of TiO2 it is more than 20 times. As a stable covering the organosilicon plasma polymer increases the lifetime of the EL structures too. |
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Keywords: | A Polymers A Thin films B Plasma deposition D Luminescence D Optical properties |
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