Infoscience

Journal article

Photoluminescence excitation spectra of disordered superlattices

We investigate photoluminescence excitation (PLE) and selective photoluminescence (SPL) of ordered and disordered superlattices, showing that the coexistence of localized and extended states in disordered superlattices produces a dramatic dependence of the PLE spectra on the detection energy. We demonstrate that the PLE of disordered superlattices gives ambiguous information on joint density of states, and we use SPL in order to show that this effect is a consequence of the localization and of the lack of thermal equilibrium in disordered systems. (C) 1998 Elsevier Science B.V. All rights reserved.

    Keywords: disordered systems ; quantum wells ; electronic states (localized) ; LOCALIZATION

    Note:

    Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. Univ Bari, Dipartmento Fis, I-70126 Bari, Italy. INFM, I-70126 Bari, Italy. Ecole Polytech Fed Lausanne, Dept Phys, CH-1015 Lausanne, Switzerland. Lorusso, GF, Univ Calif Berkeley, Lawrence Berkeley Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA.

    ISI Document Delivery No.: ZV487

    Times Cited: 0

    Cited Reference Count: 13

    Cited References:

    ANDERSON PW, 1958, PHYS REV, V109, P1492

    CAPOZZI V, 1986, PHYS REV B, V34, P3924

    CAPOZZI V, 1991, I PHYS C SER, V123, P195

    CAPOZZI V, 1996, PHYS REV B, V54, P7643

    CHOMETTE A, 1986, PHYS REV LETT, V57, P1464

    CHOMETTE A, 1988, SEMICOND SCI TECH, V3, P351

    CRISANTI A, 1989, J PHYS-CONDENS MAT, V1, P9509

    LORUSSO GF, 1996, PHYS REV B, V53, P1018

    LORUSSO GF, 1996, SEMICOND SCI TECH, V11, P308

    LORUSSO GF, 1996, SOLID STATE COMMUN, V100, P17

    MOORE KJ, 1988, PHYS REV B, V38, P5535

    SASAKI A, 1994, APPL PHYS LETT, V64, P2016

    YAMG MF, 1993, PHYS REV LETT, V70, P323

    Reference

    Record created on 2007-08-31, modified on 2016-08-08

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