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Determination of the valence-band discontinuity of InP/sub 1-x/Ga/sub x/P/sub 1-z/As/sub z/ (xapprox. 0. 13, zapprox. 0. 29) by quantum-well luminescence

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.90702· OSTI ID:6040047
By means of liquid-phase epitaxy, undoped single-quantum-well layers of In/sub 1-x/Ga/sub x/P/sub 1-z/As/sub z/ (xapprox.0.13, zapprox.0.29) of thickness L/sub z/approx.150 A are grown embedded in InP and are examined in photoluminescence. Hot-electron recombination from E/sub c/ (InP) to bound holes in the quaternary quantum well leads to stimuated emission in a band approx.80 meV below E/sub g/ (InP) and thus to an estimate of ..delta..E/sub v/approx.80 meV (..delta..E/sub c/approx...delta..E/sub v/) for the InP-InGaPAs valence-band discontinuity.
Research Organization:
Department of Electrical Engineering and Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
OSTI ID:
6040047
Journal Information:
Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 34:12; ISSN APPLA
Country of Publication:
United States
Language:
English