Theoretical Studies on the Effect of Confinement on Quantum Dots Using the Brus Equation


Quantum confinement effect in semiconductor quantum dots (QD's) of CdSe, ZnS and GaAs has been studied using the Brus Equation. It is found that the simple models obtained for the three different semiconductor nanocrystals exhibit the size dependence predicted by the particle-in-a-box model. The result shows that ground state confinement energy is inversely proportional to the size (radius). Thus, as one increases the radius (size), the confinement energy decreases, but never reaches zero. i.e., the lowest possible energy for the quantum dot sample is not zero.

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E. Chukwuocha, M. Onyeaju and T. Harry, "Theoretical Studies on the Effect of Confinement on Quantum Dots Using the Brus Equation," World Journal of Condensed Matter Physics, Vol. 2 No. 2, 2012, pp. 96-100. doi: 10.4236/wjcmp.2012.22017.

Conflicts of Interest

The authors declare no conflicts of interest.


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