한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
권호 표지

Conduction properties of phosphorescent emitting layers and their application to optimizing white OLEDs

  • Baek, Heume-Il (School of electrical engineering and Computer Science, Seoul National University) ;
  • Noh, Seung-Uk (School of electrical engineering and Computer Science, Seoul National University) ;
  • Lee, Hyun-Koo (School of electrical engineering and Computer Science, Seoul National University) ;
  • Suman, C.K. (School of electrical engineering and Computer Science, Seoul National University) ;
  • Lee, Chang-Hee (School of electrical engineering and Computer Science, Seoul National University)
  • Published : 2009.10.12
Download PDF
⟨ Previous Next ⟩

Abstract

The mobility of charge carriers has been investigated in the pristine and phosphorescent materials doped host materials using time-of-flight photoconductivity technique. The field and temperature dependences of the mobility were analyzed with the Gaussian disorder model. Based on these results, we optimized white organic light emitting diodes (WOLEDs) consisting of multi-emitting layers doped with phosphorescent and fluorescent dopants. Especially, we studied the effect of each emitter position and an interlayer on the device characteristics of WOLEDs.

Keywords