Patent
Light-emitting diode suitable as a pressure sensor
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TLDR
In this article, a light-emitting diode is characterized for the purpose of pressure-dependent brightness of the light radiation, which is useful for potential-free measurement of pressure forces.Abstract:
A light-emitting diode comprises III-V semiconductor material having a pn junction as its light-active zone from which luminescent radiation is emitted, the radiation having a pressure-dependent characteristic. The diode is characterized in that, for the purpose of pressure-dependent brightness of the light radiation, the composition of the light-active zone at the pn junction comprises a semiconductor material which has a composition which corresponds to a position close to the transition from a direct energy gap to an indirect energy gap and at which a change of the composition would result in a significant change in the brightness of the emission. The invention is particularly useful for potential-free measurement of pressure forces.read more
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Journal ArticleDOI
Effect of composition and pressure on the nitrogen isoelectronic trap in GaAs 1-x P x
R. J. Nelson,Nick Holonyak,James J. Coleman,David Lazarus,W. O. Groves,D. L. Keune,M. G. Craford,D. J. Wolford,B. G. Streetman +8 more
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