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Zoology and wildlife conservation

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Abstracts » Zoology and wildlife conservation

Injection and detection of a spin-polarized current in a light-emitting diode

Article Abstract:

It has been possible to obtain strong evidence that the polarized electroluminescence of the spin-aligner light-emitting diode is the result of the injection of spin-polarized carriers into GaAs. New research has achieved injection efficiencies of 90% spin-polarized current into a non-magnetic semiconductor device, a GaAs/AlGaAs light-emitting diode. The extremely large degree of spin-polarization achieved in this device shows that the spin-aligner approach is very well suited to test the many remaining predictions on the physics of spin transport.

Author: Schmidt, G., Fiederling, R., Keim, M., Reuscher, G., Ossau, W., Waag, A., Molenkamp, L.W.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1999

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A silicon/iron-disilicide light-emitting diode operating at a wavelength of 1.5 um

Article Abstract:

Silicon, long the chosen material for most microelectronic purposes, is a poor light emitter, so hindering the development of integrated silicon optoelectric instruments. Many attempts have been made to develop efficient silicon-based structures with good light-emitting properties that will operate at a wavelength of 1.5 um. The successful construction of a working silicon/iron-disilicide light-emitting diode is described.

Author: Homewood, K.P., Leong, D., Harry, M., Reeson, K.J.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
Product development, Microelectronics, Silicon diodes

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An efficient room-temperature silicon-based light-emitting diode

Article Abstract:

Research is presented concerning the use of standard silicon processing techniques to develop a silicon light-emitting diode which operates effectively at room temperature due to the spacial confinement of the charge carriers.

Author: Wai Lek Ng, Lourenco, M.A., Gwilliam, R.M., Ledain, S., Shao, G., Homewood, K.P.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2001
Letter to the Editor, Silicon

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Subjects list: Research, Light-emitting diodes, LEDs
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