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http://dx.doi.org/10.5757/ASCT.2015.24.5.167

Interband Transition and Confinement of Charge Carriers in CdS and CdS/CdSe Quantum Dots  

Man, Minh Tan (Department of Physics, Research Institute of Physics and Chemistry, Chonbuk National University)
Lee, Hong Seok (Department of Physics, Research Institute of Physics and Chemistry, Chonbuk National University)
Publication Information
Applied Science and Convergence Technology / v.24, no.5, 2015 , pp. 167-171 More about this Journal
Abstract
Quantum-confined nanostructures open up additional perspectives in engineering materials with different electronic and optical properties. We have fabricated unique cation-exchanged CdS and CdS/CdSe quantum dots and measured their first four exciton transitions. We demonstrate that the relationship between electronic transitions and charge-carrier distributions is generalized for a broad range of core-shell nanostructures. These nanostructures can be used to further improve the performance in the fields of bio-imaging, light-emitting devices, photovoltaics, and quantum computing.
Keywords
Quantum dots; Interband transition; Charge carriers; Carrier confinement;
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