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Effect of Temperature and Doping Concentration on Structureof Electronic State and Intersubband Optical Absorptionof Si Delta-Doped GaAs Quantum Well(PDF)

《南京师大学报(自然科学版)》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2014年04期
Page:
51-
Research Field:
物理学
Publishing date:

Info

Title:
Effect of Temperature and Doping Concentration on Structureof Electronic State and Intersubband Optical Absorptionof Si Delta-Doped GaAs Quantum Well
Author(s):
Zhao HengfeiYang Shuangbo
School of Physics and Technology,Nanjing Normal University,Nanjing 210023,China
Keywords:
GaAs quantum wellintersubband optical absorptiontemperaturedoping concentrationthe structure of electronic state
PACS:
O413.1
DOI:
-
Abstract:
By solving Schr?dinger equation and Poisson equation self-consistently under the effective mass approximation,we calculated the structure of the electronic state of Si δ-doped GaAs quantum well system at T≠0.We studied the effect of temperature,doping concentration,and energy of incident light on the intersubband energy,Fermi energy,electron concentration distribution and intersubband optical absorption coefficient.It is found that at the given doping concentration,the Fermi energy decrease with the increase of temperature,the total intersubband optical absorption coefficient decrease with the increase of temperature.And at the given temperature,the total intersubband optical absorption coefficient increase with the increase of doping concentration.

References:

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Last Update: 2014-12-31