Room temperature blue light emitting p-n diodes from Zn(S,Se)-based multiple quantum well structures
- 20 April 1992
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 60 (16), 1999-2001
- https://doi.org/10.1063/1.107123
Abstract
Blue (494 nm) light emitting quantum well diodes based on Zn(S,Se) p‐n junctions are demonstrated at room temperature. P‐type Zn(S,Se) is realized by using a nitrogen rf plasma cell. The light emitting diode is formed on homoepitaxial GaAs buffer layers by molecular beam epitaxy. The S fraction of the alloy is selected to provide a lattice match between the II‐VI active region and the GaAs buffer; the result is an active region having a dislocation density below 105/cm−2. The letter discusses emission characteristics as well as the x‐ray rocking curve and transmission electron microscopy characterization of the structures.Keywords
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