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Journal of Nanophotonics / Volume 5 / Letters

Ultraviolet electroluminescence from zinc oxide nanorods/deoxyribonucleic acid hybrid bio light-emitting diode

J. Nanophoton. 5, 059505 (Aug 12, 2011); http://dx.doi.org/10.1117/1.3618630

Rohini Bhardwaj Gupta, Pramod Kumar Bhatnagar, and Parmatma Chandra Mathur

University of Delhi South Campus, Department of Electronic Science, Benito Juarez Road, New Delhi-110021, India

Swati Nagpal

Delhi University, Rajdhani College, Department of Physics and Electronics New Delhi-110015, India

Swati Arora

Delhi University, Zakhir Husain College, Department of Physics New Delhi-110001, India

Ultraviolet (UV) light-emitting diode using salmon deoxyribonucleic acid (sDNA)-cetyltrimethylammonium complex as an electron blocking layer and zinc oxide (ZnO) nanorods as emissive material was fabricated. UV emission, which was blue shifted up to 335 nm with respect to the band edge emission of 390 nm, was observed. This blue shift was caused due to accumulation of electrons in the conduction band of ZnO because of a high potential barrier existing at the sDNA/ZnO interface.

© 2011 Society of Photo-Optical Instrumentation Engineers (SPIE)

History
Received May 02, 2011
Accepted Jul 08, 2011
Revised Jul 08, 2011
Published online Aug 12, 2011
Digital Object Identifier
http://dx.doi.org/10.1117/1.3618630
Citation
Rohini Bhardwaj Gupta, Swati Nagpal, Swati Arora, Pramod Kumar Bhatnagar and Parmatma Chandra Mathur, "Ultraviolet electroluminescence from zinc oxide nanorods/deoxyribonucleic acid hybrid bio light-emitting diode", J. Nanophoton. 5, 059505 (Aug 12, 2011); http://dx.doi.org/10.1117/1.3618630

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