Stable white light emission from an externally modified organic light-emitting device

Giner-Casares, JJ; Martin-Romero, MT; Camacho, L; Martinez, BC; Cadd, D; Pearson, C; Petty, MC

Abstract

A blue organic light-emitting device, based on an iridium phosphorescent dopant in a polyvinylcarbazole host, has been modified by the addition of an external CaS:Eu inorganic phosphor layer. By incorporating a surfactant in the phosphor mixture, a uniform coating could be achieved by drop-casting. The resulting hybrid device exhibited white light emission, with Commission Internationale de l'Eclairage, CIE (x, y) coordinates of x = 0.32, y = 0.35. No significant change in these coordinates was observed for current densities in the range 25-510 A m(-2). The maximum power efficiencies of the white device was 2.3 lm W-1 at a brightness of 254 cd m(-2). (C) 2010 Elsevier B.V. All rights reserved.

Citation

Giner-Casares, J., Martin-Romero, M., Camacho, L., Martinez, B., Cadd, D., Pearson, C., & Petty, M. (2010). Stable white light emission from an externally modified organic light-emitting device. Displays, 31(4-5), 181-185. https://doi.org/10.1016/j.displa.2010.07.001

• Journal Article Type: Article
• Publication Date: 2010-12
• Deposit Date: Jan 6, 2011
• Journal: Displays
• Print ISSN: 0141-9382
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 31
• Issue: 4-5
• Pages: 181-185
• DOI: https://doi.org/10.1016/j.displa.2010.07.001
• Public URL: https://durham-repository.worktribe.com/output/1513442