White organic light emitting diodes based on fluorene-carbazole dendrimers

Usluer Ö., Demic S., Kus M., Özel F., Serdar Sariciftci N.

Journal of Luminescence, cilt.146, ss.6-10, 2014 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 146
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.jlumin.2013.09.044
  • Dergi Adı: Journal of Luminescence
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.6-10
  • Anahtar Kelimeler: Carbazole, Dendrimer, Fluorene, P-sexiphenyl, White organic light-emitting diode
  • Recep Tayyip Erdoğan Üniversitesi Adresli: Hayır

Özet

In this paper, we report on theProd. Type: FTP fabrication and characterization of blue and white light emitting devices based on two fluorene-carbazole containing dendrimers and para-sexiphenyl (6P) oligomers. Blue light emitting diodes were fabricated using 9′,9″-(9,9-dioctyl- 9H-fluorene-2,7-diyl)bis-9′H-9,3′:6′,9″-tercarbazole (OFC-G2) and 9′,9″-(9,9′-spirobi[fluorene]-2,7-diyl)bis- 9′H-9,3′:6′,9″-tercarbazole (SBFC-G2) dendrimers as a hole transport and emissive layer (EML) and 2,9-dimethyl-4,7-diphenyl-1,10- phenanthroline (BCP) as an electron transport layer. White light emitting diodes were fabricated using 6P and these two dendrimers as an EML. OLED device with the structure of ITO/PEDOT:PSS (50 nm)/OFC-G2 (40 nm)/6P (20 nm)/LiF:Al (0.5:100 nm) shows maximum luminance of nearly 1400 cd/m2 and a Commission Internationale de l'Eclairage chromaticity coordinates of (0.27, 0.30) at 12 V. © 2013 Elsevier B.V. All rights reserved.