Publication: Polarity-controlled visible/infrared electroluminescence in Si-nanocrystal/Si light-emitting devices
Open/View Files
Date
2010
Published Version
Journal Title
Journal ISSN
Volume Title
Publisher
AIP Publishing
The Harvard community has made this article openly available. Please share how this access benefits you.
Citation
Liu, Zhihong, Jiandong Huang, Pooran C. Joshi, Apostolos T. Voutsas, John Hartzell, Federico Capasso, and Jiming Bao. 2010. “Polarity-Controlled Visible/infrared Electroluminescence in Si-nanocrystal/Si Light-Emitting Devices.” Applied Physics Letters 97 (7): 071112. doi:10.1063/1.3480403.
Research Data
Abstract
We report the demonstration of a room-temperature visible/infrared color-switchable light-emitting device comprising a Si nanocrystal-embedded silicon oxide thin film on a p-type Si substrate. The device emits band-edge infrared light from the silicon substrate when the substrate is positively forward biased with respect to the Si-nanocrystal film. Under reverse bias, visible emission from the Si-nanocrystal film is observed. Compared to the photoluminescence of the Si-nanocrystal film, the visible electroluminescence is broader and blueshifted to shorter wavelength, and is ascribed to impact ionization in the Si-nanocrystal/SiO2 film.
Description
Other Available Sources
Keywords
Terms of Use
This article is made available under the terms and conditions applicable to Other Posted Material (LAA), as set forth at Terms of Service