Ballistic electron luminescence studies of superlattice minibands

M. V. Petrov, S. A. Lyon

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

Short-period superlattice minibands have been studied by ballistic electron luminescence spectroscopy. Using a combination of optical and electrical measurements in a single device, electron transport through an AlGaAs/GaAs superlattice was observed. The optical measurement provided a precise energy scale for calibration of voltages obtained in the electrical experiment. A three terminal n-p-p device was used, where the electrons were injected through an emitter-base tunnel barrier into a p-type base, which was separated from the p-doped collector by a superlattice. Luminescence emitted by ballistic electrons recombining in the base was used to measure their kinetic energy. Oscillations in the transistor gain were detected and are due to transport through the superlattice miniband.

Original languageEnglish (US)
Pages (from-to)3263-3265
Number of pages3
JournalApplied Physics Letters
Volume70
Issue number24
DOIs
StatePublished - Jun 16 1997

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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