TU Darmstadt / ULB / TUbiblio

Highly efficient energy transfer to a novel organic dye in OLED devices

Hepp, Aline and Ulrich, G. and Schmechel, Roland and Seggern, Heinz von and Ziessel, R. (2004):
Highly efficient energy transfer to a novel organic dye in OLED devices.
In: Synthetic metals, 146 (1), pp. 11-15. Elsevier Science Publishing, [Article]

Abstract

The neutral 4,4-difluoro-8-(2,2′:6′,2″-terpyridine-4′-yl)-1,3,5,7-tetramethyl-2,6-diethyl-4-bora-3a,4a-diaza-s-indacene (Boditerpy) molecule was synthesized and incorporated as dopant (<1%) in double-layer organic light emitting diodes (OLEDs) with the configuration ITO/α-NPD(60 nm)/Alq3(60 nm):Boditerpy (0.4 nm)/LiF(0.02 nm)/Al(80 nm). This device exhibits green emission with a brightness of 545 cd/m2 at 8 V and a maximum power efficiency of 0.9 lm/W. A full quantitative energy transfer process is indicated by a complete quenching of light emission from Alq3 in photoluminescence. However, I–V characteristics indicate some losses during the charge transfer processes in OLED configuration

Item Type: Article
Erschienen: 2004
Creators: Hepp, Aline and Ulrich, G. and Schmechel, Roland and Seggern, Heinz von and Ziessel, R.
Title: Highly efficient energy transfer to a novel organic dye in OLED devices
Language: English
Abstract:

The neutral 4,4-difluoro-8-(2,2′:6′,2″-terpyridine-4′-yl)-1,3,5,7-tetramethyl-2,6-diethyl-4-bora-3a,4a-diaza-s-indacene (Boditerpy) molecule was synthesized and incorporated as dopant (<1%) in double-layer organic light emitting diodes (OLEDs) with the configuration ITO/α-NPD(60 nm)/Alq3(60 nm):Boditerpy (0.4 nm)/LiF(0.02 nm)/Al(80 nm). This device exhibits green emission with a brightness of 545 cd/m2 at 8 V and a maximum power efficiency of 0.9 lm/W. A full quantitative energy transfer process is indicated by a complete quenching of light emission from Alq3 in photoluminescence. However, I–V characteristics indicate some losses during the charge transfer processes in OLED configuration

Journal or Publication Title: Synthetic metals
Journal volume: 146
Number: 1
Publisher: Elsevier Science Publishing
Uncontrolled Keywords: OLEDs, Alq3, α-NPD, Boditerpy dyes, Energy transfer
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Electronic Materials
Date Deposited: 20 Nov 2008 08:19
Official URL: http://www.sciencedirect.com/science/article/pii/S0379677904...
Identification Number: doi:10.1016/j.synthmet.2004.06.016
License: [undefiniert]
Funders: The authors are grateful to the European Union for financial support through the EU-FET-IST project ILO #IST-2001-33057.
Export:
Suche nach Titel in: TUfind oder in Google
Send an inquiry Send an inquiry

Options (only for editors)
Show editorial Details Show editorial Details