White light from an electroluminescent diode made from poly[3(4‐octylphenyl)‐2,2′‐bithiophene] and an oxadiazole derivative
1994 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 76, no 11, 7530-7534 p.Article in journal (Refereed) Published
We report on an electroluminescent diode emitting red, green, and blue light simultaneously. The device is based on a thin polymer layer, poly[3‐(4‐octylphenyl)‐2,2′‐bithiophene] and a thick molecular layer, 2‐(4‐biphenylyl)‐5‐(4‐tertbutyl‐phenyl)1,3,5‐oxadiazole. The quantum efficiency for light conversion is 0.3% and the turn‐on voltage for light emission is 7 V. In this article we present electric and spectroscopic characterizations. A mechanism for the light emission, based on electron and hole recombination between the two organic layers, is proposed
Place, publisher, year, edition, pages
American Institute of Physics (AIP) , 1994. Vol. 76, no 11, 7530-7534 p.
National CategoryEngineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-74935DOI: 10.1063/1.357984ISI: A1994PU81800054OAI: oai:DiVA.org:liu-74935DiVA: diva2:497102