Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/25462
Title: Bipolar pulsed excitation of erbium-doped nanosilicon light emitting diodes
Author: Anopchenko, Aleksei
Tengattini, Andrea
Marconi, A.
Prtljaga, Nikola
Ramírez Ramírez, Joan Manel
Jambois, Olivier
Berencén Ramírez, Yonder Antonio
Navarro Urrios, Daniel
Garrido Fernández, Blas
Milesi, F.
Colonna, J. P.
Fedeli, Jean-Marc
Pavesi, Lorenzo
Keywords: Fotònica
Òptica integrada
Photonics
Integrated optics
Issue Date: 21-Mar-2012
Publisher: American Institute of Physics
Abstract: High quantum efficiency erbium doped silicon nanocluster (Si-NC:Er) light emitting diodes (LEDs) were grown by low-pressure chemical vapor deposition (LPCVD) in a complementary metal-oxide-semiconductor (CMOS) line. Erbium (Er) excitation mechanisms under direct current (DC) and bipolar pulsed electrical injection were studied in a broad range of excitation voltages and frequencies. Under DC excitation, Fowler-Nordheim tunneling of electrons is mediated by Er-related trap states and electroluminescence originates from impact excitation of Er ions. When the bipolar pulsed electrical injection is used, the electron transport and Er excitation mechanism change. Sequential injection of electrons and holes into silicon nanoclusters takes place and nonradiative energy transfer to Er ions is observed. This mechanism occurs in a range of lower driving voltages than those observed in DC and injection frequencies higher than the Er emission rate.
Note: Reproducció del document publicat a: http://dx.doi.org/10.1063/1.3694680
It is part of: Journal of Applied Physics, 2012, vol. 111, núm. 6, p. 063102-1-063102-5
Related resource: http://dx.doi.org/10.1063/1.3694680
URI: http://hdl.handle.net/2445/25462
ISSN: 0021-8979
Appears in Collections:Articles publicats en revistes (Electrònica)
Publicacions de projectes de recerca finançats per la UE

Files in This Item:
File Description SizeFormat 
600585.pdf650.08 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.