title: Highly efficient blue fluorescent materials based on fluorene derivatives end-capped with arylaminofluorenylethylenes for organic light-emitting diodes.
abstract: Multilayered organic light-emitting diodes (OLEDs) were fabricated by using the new fluorine derivatives end-capped with arylaminofluorenylethylenes as dopant materials. The device structure was ITO/NPB/15% blue dopants doped in MADN/Bphen/Liq/Al. Among those, a device shows the maximum luminance of 40800 cd/m2 at 12 V, the luminous efficiency of 12.8 cd/A at 20 mA/cm2, power efficiency of 9.13 Im/W at 20 mA/cm2 and CIE(x,y) coordinates of (x = 0.188, y = 0.372) at 8 V.
authors.affiliation: Department of Chemistry, Sungkyunkwan University, Suwon 440-746, Korea.
authors.forename: Kum Hee
authors.initials: KH
authors.lastname: Lee
authors.forename: Jeong Keun
authors.initials: JK
authors.lastname: Park
authors.forename: Gu Young
authors.initials: GY
authors.lastname: Kim
authors.forename: Ji Hoon
authors.initials: JH
authors.lastname: Seo
authors.forename: Young Kwan
authors.initials: YK
authors.lastname: Kim
authors.forename: Seung Soo
authors.initials: SS
authors.lastname: Yoon
mesh_terms: D003116:Color; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005030:Ethylenes / Q000737:chemistry*; D005449:Fluorenes / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000737:chemistry*; D008029:Lighting / Q000295:instrumentation*; D009930:Organic Chemicals / Q000737:chemistry*; D012666:Semiconductors
chemical_list: D005030:Ethylenes; D005449:Fluorenes; D005456:Fluorescent Dyes; D009930:Organic Chemicals; C041509:fluorene