Journal
SOLID STATE COMMUNICATIONS
Volume 128, Issue 1, Pages 15-18Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0038-1098(03)00626-4
Keywords
quantum wells; optical properties; nonlinear optics
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We have confirmed biexciton formation in an organic-inorganic hybrid quantum-well material (C4H9NH3)(2)PbBr4 by photoluminescence and two-photon absorption measurements. The biexciton has extremely large binding energy, 60 meV, which to our knowledge is the largest value ever reported for a semiconductor. By analyzing the spectrum of biexciton luminescence, the biexciton gas temperature was found to be much higher than the bath temperature due to a higher local temperature arising from the large biexciton binding energy. (C) 2003 Elsevier Ltd. All rights reserved.
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