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Title: Interband optical transition energy and oscillator strength in a lead based CdSe quantum dot quantum well heterostructure

Binding energies of the exciton and the interband optical transition energies are studied in a CdSe/Pb{sub 1-x}Cd{sub x}Se/CdSe spherical quantum dot-quantum well nanostructure taking into account the geometrical confinement effect. The core and shell are taken as the same material. The initial and final states of energy and the overlap integrals of electron and hole wave functions are determined by the oscillator strength. The oscillator strength and the radiative transition life time with the dot radius are investigated for various Cd alloy content in the core and shell materials.
Authors:
 [1] ;  [2]
  1. Dept. of Physics, Devanga Arts College, Aruppukottai-626101. Virudhunagar. India (India)
  2. Dept. of Physics, Govt. Arts College, Melur-625106. Madurai. India (India)
Publication Date:
OSTI Identifier:
22490528
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1665; Journal Issue: 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BINDING ENERGY; CADMIUM ALLOYS; CADMIUM SELENIDES; ELECTRONS; EXCITONS; HOLES; LEAD SELENIDES; OSCILLATOR STRENGTHS; QUANTUM DOTS; QUANTUM WELLS; WAVE FUNCTIONS