White Organic Light-Emitting Diode Using the Exciplex Between DNTPD and ET-137
| Autor: | Hyun Jin Ji, Ji Geun Jang |
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| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Molecular Crystals and Liquid Crystals. 563:223-229 |
| ISSN: | 1563-5287 1542-1406 |
| DOI: | 10.1080/15421406.2012.689721 |
| Popis: | Two organic layers of the N,N′-diphenyl-N,N′-bis-[4-(phenyl-m-tolyl-amino)-phenyl]-biphenyl-4,4′-diamine [DNTPD] and the ET-137 which is a pyran derivative provided from SFC Co. were sequentially deposited between the ITO anode and the LiF/Al cathode for generating blue light-emitting excitons in the electron transport material and yellow light-emitting exciplexes at the interface of two organic layers. In this study, the DNTPD was used as a hole transport layer and the ET-137 as an electron transport and exciton formation layer. The structure of the fabricated devices is very simple compared with those of conventional white organic light-emitting devices (OLEDs) and the emission showed the nearly pure white on the Commission Internationale de I′ Eclarirage (CIE) chart. The device with two organic layers of 500A-thick DNTPD and 500A-thick ET-137 showed electroluminescent characteristics of the double peak emission with a peak wavelength of 455 nm from the excitons of ET-137 and a peak wavelength of 561 nm... |
| Databáze: | OpenAIRE |
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