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Spirobifluorene derivatives for ultraviolet organic light-emitting diodes

✍ Scribed by Hideki Etori; Xiu Lan Jin; Takeshi Yasuda; Shuntaro Mataka; Tetsuo Tsutsui

Book ID
116898117
Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
464 KB
Volume
156
Category
Article
ISSN
0379-6779

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## Abstract We report on the development of AlGaN‐based deep UV light emitting diodes (LEDs) with emission wavelengths from 254 to 340 nm, focusing on the improvement of 280 nm LEDs efficiency. Under optimal device structure the UV LEDs efficiency was found to strongly depend on the AlGaN material