Duke Physics

Publications [#217987] of Henry Everitt

Papers Published

1. Peng, HY and Lee, CW and Everitt, HO and Lee, DS and Steckl, AJ and Zavada, JM, Effect of optical excitation energy on the red luminescence of Eu3+ in GaN, Applied Physics Letters, vol. 86 no. 5 (2005), pp. -- [GetabsServlet], [doi] .

   Abstract:
   Photoluminescence (PL) excitation spectroscopy mapped the photoexcitation wavelength dependence of the red luminescence (D-5(0) --> F-7(2)) from GaN:Eu. Time-resolved PL measurements revealed that for excitation at the GaN bound exciton energy, the decay transients are almost temperature insensitive between 86 K and 300 K, indicating an efficient energy transfer process. However, for excitation energies above or below the GaN bound exciton energy, the decaying luminescence indicates excitation wavelength- and temperature-dependent energy transfer influenced by intrinsic and Eu3+-related defects. (C) 2005 American Institute of Physics.

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