6 March 2013 Enhanced efficiency in biopolymer nanocomposite light-emitting devices
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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, Yi-Wen Chiu, I-Ching Chen, I-Ching Chen, Yu-Chueh Hung, 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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