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http://hdl.handle.net/10119/4529
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| Title: | Organic light emitting devices with saturated red emission using 6,13-diphenyl pentacene |
| Authors: | Picciolo, L. C.
Murata, H.
Kafafi, Z. H. |
| Issue Date: | 2001-04-16 |
| Publisher: | American Institute of Physics |
| Magazine name: | Applied Physics Letters |
| Volume: | 78 |
| Number: | 16 |
| Start page: | 2378 |
| End page: | 2380 |
| DOI: | 10.1063/1.1362259 |
| Abstract: | Organic electroluminescent devices with saturated red emission were developed using 6,13-diphenylpentacene (DPP) doped into tris(8-hydroxyquinolinato) aluminum III (Alq_3). DPP exhibits a narrow emission spectrum giving rise to a saturated red peak, centered around 625 nm, with excellent chromaticity coordinates (x = 0.63 and y = 0.34) in accordance with the Commission Internationale de l'Eclairage. An absolute photoluminescence (PL) quantum yield (Φ_PL) of ～30% was measured for a composite film of 0.55 mol % of DPP doped into Alq_3. An electroluminescence (EL) quantum efficiency of 1.3% at 100 A/m^2, close to the estimated theoretical limit (1.5%), was measured for an unoptimized device structure that consists of an active emissive layer sandwiched between hole- and electron-transport layers. In addition, the EL quantum efficiency is constant or stable over a wide range of current densities (1-1000 A/m^2) or luminance values (1-1000 cd/m^2). |
| Rights: | Copyright 2001 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in L. C. Picciolo, H. Murata, and Z. H. Kafafi, Applied Physics Letters, 78(16), 2378-2380 (2001) and may be found at http://link.aip.org/link/?APPLAB/78/2378/1 |
| URI: | http://hdl.handle.net/10119/4529 |
| Material Type: | publisher |
| Appears in Collections: | c10-1. 雑誌掲載論文 (Journal Articles)
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