Type

Other / n/a

Authors

Yury Rakovich
John Francis Donegan
Louise Bradley

Subjects

Physics

Topics
room temperature luminescence quantum dots cdte quantum dots nanocrystals photoluminescence spectroscopy cdte stokes shift

Size selective photoluminescence excitation spectroscopy in CdTe quantum dots (2003)

Abstract We present a photoluminescence and photoluminescence excitation study of CdTe quantum dots, prepared via a novel organometallic approach. The global photoluminescence (excited at the energy above the absorption edge) showed a red shift of 75 meV with respect to the first absorption peak. This band edge emission was found to be strongly dependent on the excitation photon. Resonant emission spectra showed a pronounced spectral shift and line narrowing with decreasing excitation energy. The resonant Stokes shifts were extracted from photoluminescence and photoluminescence excitation data. The minimum magnitude of the resonant Stokes shift of 14 meV was obtained at room temperature.
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Full list of authors on original publication

Yury Rakovich, John Francis Donegan, Louise Bradley

Experts in our system

1
John Francis Donegan
Trinity College Dublin
Total Publications: 152
 
2
Louise Bradley
Trinity College Dublin
Total Publications: 62