Performance enhancement of organic light-emitting diode by heat treatment

Autor:	H.Y. Sun, F.L. Wong, Michael C. Y. Chan, Chun-Sing Lee, Shi Wun Tong, Shuit-Tong Lee
Rok vydání:	2006
Předmět:	Fabrication Materials science business.industry Thermal treatment Electroluminescence Condensed Matter Physics law.invention Inorganic Chemistry law Materials Chemistry OLED Optoelectronics Degradation (geology) Luminescence business Diode Light-emitting diode
Zdroj:	Journal of Crystal Growth. 288:110-114
ISSN:	0022-0248
Popis:	The effects of post-fabrication heat treatments on the performance and stability of organic light-emitting diodes (OLEDs) were studied in standard NPB/Alq3 devices. Electroluminescence (EL) performance, growth of dark spots, and operation stability of the devices with different heat-treatments were measured and monitored. It was found that optimum thermal treatment can slow down the growth of dark-spot and luminescence degradation in the OLEDs. Substantial increase in operation lifetime was also observed in the heat-treated samples. Heating at 70 °C for 7.5 min increases the half-brightness lifetime from 6400 h (untreated device) to over 15,000 h.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::15932f2a2ba1e80a133e0d6d0afa43de https://doi.org/10.1016/j.jcrysgro.2005.12.032 Zobrazit plný text záznamu Full Text from ScienceDirect