Organic light-emitting diodes tuned with an external color tuning layer

Chi Sheng Chang*, Po-Tsun Liu, Chin H. Chen, Yi Teh Chou

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Blue phosphorescence OLED devices with an external color tuning layer (ECTL) for the purpose of producing white lighting emission has been fabricated. A graded FIrpic phosphorescent blue device shows a much higher efficiency than one that is not graded, and by applying 1.0wt.% ECTL will produce WOLED with high efficiency of 9.6 cd/A and CIE x,y at (0.31, 0.43), and by using a lower concentration of 0.5wt.% ECTL, the efficiency will even reach 12.6 cd/A and CIE x,y at (0.25, 0.43). It is demonstrated that this methodology provides an easy fabrication process for producing highly efficient WOLED devices with tunable colors.

Original languageEnglish
Title of host publicationECS Transactions - Physics and Chemistry of Luminescent Materials, Including the 4th Symposium on Persistent Phosphors
Pages11-15
Number of pages5
Edition31
DOIs
StatePublished - 25 Nov 2009
EventPhysics and Chemistry of Luminescent Materials, Including the 4th Symposium on Persistent Phosphors - 214th ECS Meeting - Honolulu, HI, United States
Duration: 12 Oct 200817 Oct 2008

Publication series

NameECS Transactions
Number31
Volume16
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

ConferencePhysics and Chemistry of Luminescent Materials, Including the 4th Symposium on Persistent Phosphors - 214th ECS Meeting
CountryUnited States
CityHonolulu, HI
Period12/10/0817/10/08

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