Mes2B(p-4,4´-biphenyl-NPh(1-naphthyl)): A multifunctional molecule for Electroluminescent Devices

Jia, Wen Li, Feng, Xiao Dong, Bai, Dong Ren, Lu, Zheng Hong, Wang, Suning and Vamvounis, George (2005) Mes2B(p-4,4´-biphenyl-NPh(1-naphthyl)): A multifunctional molecule for Electroluminescent Devices. Chemistry of Materials, 17 1: 164-170. doi:10.1021/cm048617t

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Author Jia, Wen Li
Feng, Xiao Dong
Bai, Dong Ren
Lu, Zheng Hong
Wang, Suning
Vamvounis, George
Title Mes2B(p-4,4´-biphenyl-NPh(1-naphthyl)): A multifunctional molecule for Electroluminescent Devices
Formatted title
Mes2B(p-4,4´-biphenyl-NPh(1-naphthyl)): A multifunctional molecule for Electroluminescent Devices
Journal name Chemistry of Materials   Check publisher's open access policy
ISSN 0897-4756
1520-5002
Publication date 2005-01-11
Year available 2004
Sub-type Article (original research)
DOI 10.1021/cm048617t
Volume 17
Issue 1
Start page 164
End page 170
Total pages 7
Place of publication Washington, DC, United States
Publisher American Chemical Society
Language eng
Subject 0306 Physical Chemistry (incl. Structural)
0912 Materials Engineering
Formatted abstract
Mes2B(p-4,4´-biphenyl-NPh(1-naphthyl)), (BNPB) a novel luminescent molecule that contains part of the well-known NPB functionality (NPB = N,N´-di-1-naphthyl-N,-diphenylbenzidine) and a three-coordinate boron center has been synthesized. BNPB is a bright blue emitter with λmax (emission) = 452 nm and a photoluminescent quantum yield of 95% in solution and 31% in the solid state. BNPB is an amorphous material and forms films readily via either solution casting or vacuum vapor deposition. A single layer EL device A with the device structure of ITO/BNPB/LiF/Al, two double-layer EL devices B and C with the device structure of ITO/NPB/BNPB/Ag for B and ITO/BNPB/Alq3/LiF/Al for C, and a triple-layer device D with the structure of ITO/NPB/BNPB/Alq3/LiF/Al have been fabricated and their performance has been evaluated. Device A produces a weak blue electroluminescence (EL). Device B produces a bright blue EL, identical to that of device A. Device C produces a green EL, typical of Alq3. Device D produces a broadband whitish-blue EL attributable to dual emission from the BNPB zone and the Alq3 zone. Devices AD demonstrate that BNPB is capable of transporting both holes and electrons in addition to being a blue emitter for EL devices. © 2005 American Chemical Society
Keyword BNPB
Electron affinity (Ea)
Electroluminescence
Ionization potential (Ip)
TD-DFT
Q-Index Code C1
Additional Notes Publication Date (Web): 1 December 2004.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Chemistry and Molecular Biosciences
 
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