P‐209: Late‐News Poster: Ordered and Coplanar Chain Conformation of Polyfluorenes by Adopting Solvent Vapor Treatment Process for Enhanced Color Purity in Polymer Light Emitting Diode. Issue 1 (30th May 2018)

• Record Type: Journal Article
• Authors: Kim, Chi-Heon; Park, Ji-sub; Kim, Byeonggon; Ko, Jeong-Hoon; Jang, Dong Hoon; Kim, Hak-Rin
• Is Part Of: Digest of technical papers. Volume 49:Issue 1(2018)
• Page Start: 1868
• Page End: 1871
• Publication Date: 2018-05-30
• Subjects: polyfluorenes -- polymer light emitting diode (PLED) -- β phase -- solvent vapor annealing -- AC-driven PLED; Information display systems -- Congresses; 621.3815422
• DOI: 10.1002/sdtp.12470
• Languages: English
• ISSNs: 0097-966X

Abstract

Abstract : We investigated molecular chain conformation effect in polyfluorenes (PFO) according to film preparation conditions. By using solvent vapor annealing and introducing anisotropic alignment interface, the molecular conformation of the β phase could be effectively enhanced. The electroluminescence properties of the alterative current driven PLED with the β phase‐enhanced PFO layer exhibited improved color purity for blue, polarized light emission, and more reliable light‐emitting operation owing to the ordered and coplanar molecular chain conformation effects.