Applied Science and Convergence Technology

The Korean Vacuum Society (한국진공학회)
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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)
  • Received : 2015.09.15
  • Accepted : 2015.09.24
  • Published : 2015.09.30
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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.

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References

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