Effect of Oxygen Plasma Treatment of Indium Tin Oxide for Organic Light-Emitting Devices with Iodogallium Phthalocyanine Layer

Autor: Masato Tanaka, Yuichi Hashimoto, Takeshi Sakakibara, Manabu Hamagaki, Yoichi Osato
Rok vydání: 2002
Předmět:
Zdroj: Japanese Journal of Applied Physics. 41:2249-2251
ISSN: 1347-4065
0021-4922
DOI: 10.1143/jjap.41.2249
Popis: We demonstrate the improvement of device lifetime by organic light-emitting devices with an iodogallium phthalocyanine (IGaPc) layer fabricated on indium tin oxide (ITO) treated with positive oxygen ions. The device performance improves markedly as follows: (a) long-term stability (an operational half-lifetime of 100 h at high current density of 100 mA/cm2), and (b) the driving voltage is unchanged. The change in the device characteristics is attributed to changes in IGaPc molecular configurations during the growth process, leading to enhanced hole injection from the ITO to IGaPc layer.
Databáze: OpenAIRE