Article (Scientific journals)
Direct electro-optical pumping for hybrid CdSe nanocrystal/III-nitride based nano-light-emitting diodes
Mikulics, Martin; Arango, Y.C.; Winden, Andreas et al.
2016In Applied Physics Letters, 108, p. 061107
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Abstract :
[en] We propose a device concept for a hybrid nanocrystal/III-nitride based nano-LED. Our approach is based on the direct electro-optical pumping of nanocrystals (secondary excitation) by electrically driven InGaN/GaN nano-LEDs as the primary excitation source. To this end, a universal hybrid optoelectronic platform was developed for a large range of optically active nano- and mesoscopic structures. The advantage of the approach is that the emission of the nanocrystals can be electrically induced without the need of contacting them. The proof of principal was demonstrated for the electro-optical pumping of CdSe nanocrystals. The nano-LEDs with a diameter of 100 nm exhibit a very low current of 8 nA at 5V bias which is several orders of magnitude smaller than for those conventionally used. The leakage currents in the device layout were typically in the range of 8 pA to 20 pA/cm2 at 5V bias. The photon-photon down conversion efficiency was determined to be 27%. Microphotoluminescence and microelectroluminescence characterization demonstrate the potential for future optoelectronics and highly secure “green” information technology applications.
Disciplines :
Materials science & engineering
Author, co-author :
Mikulics, Martin;  Peter Grünberg Institute (PGI-9), Forschungszentrum Jülich, D-52425 Jülich, Germany and Jülich-Aachen Research Alliance, JARA, Fundamentals of Future Information Technology, Germany
Arango, Y.C.;  Peter Grünberg Institute (PGI-9), Forschungszentrum Jülich, D-52425 Jülich, Germany and Jülich-Aachen Research Alliance, JARA, Fundamentals of Future Information Technology, Germany
Winden, Andreas;  Peter Grünberg Institute (PGI-9), Forschungszentrum Jülich, D-52425 Jülich, Germany and Jülich-Aachen Research Alliance, JARA, Fundamentals of Future Information Technology, Germany
Adam, Roman;  Peter Grünberg Institute (PGI-9), Forschungszentrum Jülich, D-52425 Jülich, Germany and Jülich-Aachen Research Alliance, JARA, Fundamentals of Future Information Technology, Germany
Hardtdegen, A.;  Peter Grünberg Institute (PGI-9), Forschungszentrum Jülich, D-52425 Jülich, Germany and Jülich-Aachen Research Alliance, JARA, Fundamentals of Future Information Technology, Germany
Grützmacher, Detlev;  Peter Grünberg Institute (PGI-9), Forschungszentrum Jülich, D-52425 Jülich, Germany and Jülich-Aachen Research Alliance, JARA, Fundamentals of Future Information Technology, Germany
Plinski, E.;  Faculty of Electronics, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, pOLAND
Gregusova, Dagmar;  Institute of Electrical Engineering, Slovak Academy of Sciences, SK-84104 Bratislava, Slovak Republic
Novak, Jozef;  Institute of Electrical Engineering, Slovak Academy of Sciences, SK-84104 Bratislava, Slovak Republic
Kordos, Peter;  Institute of Electronics and Photonics, Slovak University of Technology, SK-81219 Bratislava, Slovakia
Moonshiram, Anusha ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Marso, Michel ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Sofer, Zdenek;  Department of Inorganic Chemistry, Institute of Chemical Technology, Technická 5, 166 28 Prague 6, Czech Republic
Lüth, Hans;  Peter Grünberg Institute (PGI-9), Forschungszentrum Jülich, D-52425 Jülich, Germany and Jülich-Aachen Research Alliance, JARA, Fundamentals of Future Information Technology, Germany
Hardtdegen, hILDE;  Peter Grünberg Institute (PGI-9), Forschungszentrum Jülich, D-52425 Jülich, Germany and Jülich-Aachen Research Alliance, JARA, Fundamentals of Future Information Technology, Germany
More authors (5 more) Less
External co-authors :
yes
Language :
English
Title :
Direct electro-optical pumping for hybrid CdSe nanocrystal/III-nitride based nano-light-emitting diodes
Publication date :
2016
Journal title :
Applied Physics Letters
ISSN :
1077-3118
Publisher :
American Institute of Physics, Melville, United States - New York
Volume :
108
Pages :
061107
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBilu :
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