Fast and reliable approach to calculate energy levels in semiconductor nanostructures

François Thierry; Judikaël Le Rouzo; François Flory; Gérard Berginc; Ludovic Escoubas

doi:10.1117/1.JNP.9.093080

6 March 2015 Fast and reliable approach to calculate energy levels in semiconductor nanostructures

François Thierry, Judikaël Le Rouzo, François Flory, Gérard Berginc, Ludovic Escoubas

Author Affiliations +

Journal of Nanophotonics, Vol. 9, Issue 1, 093080 (March 2015). https://doi.org/10.1117/1.JNP.9.093080

Abstract

We propose a method under the effective mass approximation with an original formulation that applies to quantum wells, circular quantum wires, and spherical quantum dots of arbitrary materials with sizes as small as 1 nm. Hundreds of structures are resolved on the second scale on a laptop, allowing for optimization procedures. We demonstrate its capability by confronting bandgap calculations with exhaustive literature data for CdS, CdSe, PbS, and PbSe nanoparticles. Our approach includes a correction of the mass to address the nonparabolicity of the band structure. The correction gives an accuracy comparable to more demanding calculation methods, such as eight-band k·p, tight-binding, or even semiempirical pseudopotential methods. The effect of the correction is shown on the intrasubband optical properties of InGaAs/AlGaAs coupled quantum wells.

Citation Download Citation

François Thierry, Judikaël Le Rouzo, François Flory, Gérard Berginc, and Ludovic Escoubas "Fast and reliable approach to calculate energy levels in semiconductor nanostructures," Journal of Nanophotonics 9(1), 093080 (6 March 2015). https://doi.org/10.1117/1.JNP.9.093080

Published: 6 March 2015

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available