Effects of Indium-Tin-Oxide Surface Treatment on Organic Light-Emitting Diodes

Autor:	No Gill Park, Young Sik Kim, Tae Wan Kim, Bora You, Mi Young Kwak, Oh Kwan Kwon, Bong Ok Kim, Young Kwan Kim
Rok vydání:	2002
Předmět:	Materials science Physics and Astronomy (miscellaneous) business.industry Annealing (metallurgy) General Engineering General Physics and Astronomy chemistry.chemical_element Polishing Surface finish Electroluminescence Indium tin oxide chemistry Aluminium OLED Optoelectronics business Diode
Zdroj:	Japanese Journal of Applied Physics. 41:1523-1526
ISSN:	1347-4065 0021-4922
Popis:	Effects of mechanically polished and annealed indium-tin-oxide (ITO) substrates on tris-(8-hydroxyquinoline)aluminium (Alq3)-based light-emitting diodes were studied. It was found that the roughness and oxygen content at the ITO surface were reduced after mechanical polishing. Organic light-emitting diodes (OLEDs) fabricated on polished ITO surfaces showed ten fold better electroluminescence and current injection than OLEDs fabricated on as-received ITO surfaces, due to the increase of the smooth contact area between the ITO surface and the organic layer. The ITO substrate annealed at 300°C did not show much enhancement of electroluminescence, even though it showed high current injection at low voltage. Therefore, mechanical polishing is an effective treatment for enhancing the performance of OLEDs.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e4e1f79049a8609a03ca928490bb20de https://doi.org/10.1143/jjap.41.1523 Zobrazit plný text záznamu