Nano Archive

Electroluminescent Characteristics of DBPPV-€“ZnO Nanocomposite Polymer Light Emitting Devices

Madhava Rao, M. V. and Su, Yan Kuin and Huang, Tsung Syun and Yeh, Chen-Han and Tu, Ming-Lung (2009) Electroluminescent Characteristics of DBPPV-€“ZnO Nanocomposite Polymer Light Emitting Devices. Nanoscale Research Letters, 4 (5). pp. 485-490.

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Official URL: http://www.springerlink.com/content/468n521233h357...

Abstract

We have demonstrated that fabrication and characterization of nanocomposite polymer light emitting devices with metal Zinc Oxide (ZnO) nanoparticles and 2,3-dibutoxy-1,4-poly(phenylenevinylene) (DBPPV). The current and luminance characteristics of devices with ZnO nanoparticles are much better than those of device with pure DBPPV. Optimized maximum luminance efficiencies of DBPPV–ZnO (3:1 wt%) before annealing (1.78 cd/A) and after annealing (2.45 cd/A) having a brightness 643 and 776 cd/m2 at a current density of 36.16 and 31.67 mA/cm2 are observed, respectively. Current density–voltage and brightness–voltage characteristics indicate that addition of ZnO nanoparticles can facilitate electrical injection and charge transport. The thermal annealing is thought to result in the formation of an interfacial layer between emissive polymer film and cathode.

Item Type:Article
Subjects:Physical Science > Photonics
Physical Science > Nano objects
Material Science > Nanostructured materials
ID Code:4331
Deposited By:Lesley Tobin
Deposited On:24 Mar 2009 11:30
Last Modified:24 Mar 2009 11:30

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