6 March 2013 Enhanced efficiency in biopolymer nanocomposite light-emitting devices
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Abstract
Deoxyribonucleic acid (DNA) biopolymers have shown promise to be utilized in optoelectronic devices owing to several unique features of DNA molecules. In this study, we present the fabrication of DNA-Au nanoparticles (Au NPs) nanocomposite and incorporate it in organic light-emitting devices (OLEDs). DNA biopolymer attributes to a high lowest unoccupied molecular orbital (LUMO) level for electron blocking, whereas Au NPs are the hole traps to retard hole injection. We evaluate the performance of DNA-Au NPs nanocomposite OLEDs comprised of different concentrations of Au NPs. The results indicate that the utilization of DNA-Au NPs nanocomposite gives rise to higher luminance and higher current efficiency compared to the DNA-based device without Au NPs.
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Yi-Wen Chiu, I-Ching Chen, Yu-Chueh Hung, "Enhanced efficiency in biopolymer nanocomposite light-emitting devices", Proc. SPIE 8622, Organic Photonic Materials and Devices XV, 862217 (6 March 2013); doi: 10.1117/12.2002726; https://doi.org/10.1117/12.2002726
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