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Effect of spontaneous and piezoelectric polarization on optical characteristics of ultraviolet AlGaInN light-emitting diodes

โœ Scribed by Miao-Chan Tsai; Sheng-Horng Yen; Shu-Hsuan Chang; Yen-Kuang Kuo


Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
417 KB
Volume
282
Category
Article
ISSN
0030-4018

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## Abstract Currentโ€“voltage (__I__โ€“__V__) characteristics and electroluminescence spectra of several ultraviolet and blue lightโ€emitting diodes (LEDs) emitting nominally at 380, 400, 430, and 468โ€‰nm were studied. These diodes exhibited an Ohmic regime at low forward biases; then the current increas