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American Institute of Physics, Applied Physics Letters, 14(79), p. 2276
DOI: 10.1063/1.1407300
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Room-temperature ultraviolet emission from an organic light-emitting diode
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Abstract
Ultraviolet emission was obtained from N,N′-diphenyl-N,N′-bis(3-methylphenyl)-(1,1′-biphenyl)-4,4′-diamine. Gallium nitride was used as a hole-blocking layer to contain the holes. A peak emission wavelength of 400 nm was measured. The external quantum efficiency is about 0.35%. © 2001 American Institute of Physics.