Optical properties for N,N-bis (lnaphyhly)- N,N-diphenyl-1,1-biphenyl-4,4-diamine and tris (8-hydroxyquinolinato) aluminum in organic light emitting devices.

Citation

Mei, Yee Lim and Mat Yunus, Wan Mahmood and Talib, Zainal Abidin and Kassim, Anuar (2010) Optical properties for N,N-bis (lnaphyhly)- N,N-diphenyl-1,1-biphenyl-4,4-diamine and tris (8-hydroxyquinolinato) aluminum in organic light emitting devices. Natural Science, 2 (6). pp. 631-634. ISSN 2150-4091

Abstract

The optical properties of N,N’-bis (Inaphthyl)-N,N’diphenyl 1,1’-biphenyl-4,4’-diamine (NPB) and tris (8-hydroxyquinolinato) aluminum (Alq3)organic materials used as hole transport and electron transport layers in organic light-emitting devices (OLED) have been investigated. The NPB and Alq3 layers were prepared using thermal evaporation method. The results show that the energy band gap of Alq3 is thickness independence while the energy band gap of NPB decreases with the increasing of sample thickness. For the case of photoluminescence the Alq3 with thickness of 84 nm shows the highest relative intensity peak at 510 nm.

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Additional Metadata

Item Type:	Article
Divisions:	Faculty of Science
DOI Number:	https://doi.org/10.4236/ns.2010.26078
Publisher:	Scientific Research Publishing
Keywords:	Energy Band Gap; N,N-Bis (Inaphthyl) -N,N-Diphenyl-1,1-Biphenyl-4,4-Diamine Tris (8 Hydroxyquinolinato) Aluminum; Organic Light Emitting Diode; Photoluminescence.
Depositing User:	Najwani Amir Sariffudin
Date Deposited:	16 Oct 2013 02:21
Last Modified:	20 Oct 2015 08:38
Altmetrics:	http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.4236/ns.2010.26078
URI:	http://psasir.upm.edu.my/id/eprint/15949
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