Temperature-induced broadening of the emission lines from a quantum-dot nanostructure

V. M. Apalkov; T. Chakraborty; N. Ulbrich; D. Schuh; J. Bauer; G. Abstreiter

doi:10.1016/j.physe.2004.05.003

Temperature-induced broadening of the emission lines from a quantum-dot nanostructure

V. M. Apalkov, T. Chakraborty, N. Ulbrich, D. Schuh, J. Bauer, G. Abstreiter

Research output: Contribution to journal › Article › peer-review

Abstract

We report on the effect of temperature fluctuations on the midinfrared electroluminescence from a cascade of coupled AlInAs quantum dots and GaAs quantum wells. The observed line width is significantly broadened with increasing temperature. We then present our theoretical results on homogeneous line broadening due to temperature fluctuations for our experimental system. Our numerical simulations clearly indicate that, temperature fluctuations can account for the observed finite width of the emission lines at high-temperatures.

Original language	English
Pages (from-to)	272-277
Number of pages	6
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	24
Issue number	3-4
DOIs	https://doi.org/10.1016/j.physe.2004.05.003
State	Published - Sep 2004
Externally published	Yes

Keywords

Intersub-band transitions
Quantum dots
Quantum wells

Access to Document

10.1016/j.physe.2004.05.003

Cite this

@article{1e41943d190b423c88fce8dc069ec375,

title = "Temperature-induced broadening of the emission lines from a quantum-dot nanostructure",

abstract = "We report on the effect of temperature fluctuations on the midinfrared electroluminescence from a cascade of coupled AlInAs quantum dots and GaAs quantum wells. The observed line width is significantly broadened with increasing temperature. We then present our theoretical results on homogeneous line broadening due to temperature fluctuations for our experimental system. Our numerical simulations clearly indicate that, temperature fluctuations can account for the observed finite width of the emission lines at high-temperatures.",

keywords = "Intersub-band transitions, Quantum dots, Quantum wells",

author = "Apalkov, {V. M.} and T. Chakraborty and N. Ulbrich and D. Schuh and J. Bauer and G. Abstreiter",

year = "2004",

month = sep,

doi = "10.1016/j.physe.2004.05.003",

language = "English",

volume = "24",

pages = "272--277",

journal = "Physica E: Low-Dimensional Systems and Nanostructures",

issn = "1386-9477",

publisher = "Elsevier",

number = "3-4",

}

TY - JOUR

T1 - Temperature-induced broadening of the emission lines from a quantum-dot nanostructure

AU - Apalkov, V. M.

AU - Chakraborty, T.

AU - Ulbrich, N.

AU - Schuh, D.

AU - Bauer, J.

AU - Abstreiter, G.

PY - 2004/9

Y1 - 2004/9

N2 - We report on the effect of temperature fluctuations on the midinfrared electroluminescence from a cascade of coupled AlInAs quantum dots and GaAs quantum wells. The observed line width is significantly broadened with increasing temperature. We then present our theoretical results on homogeneous line broadening due to temperature fluctuations for our experimental system. Our numerical simulations clearly indicate that, temperature fluctuations can account for the observed finite width of the emission lines at high-temperatures.

AB - We report on the effect of temperature fluctuations on the midinfrared electroluminescence from a cascade of coupled AlInAs quantum dots and GaAs quantum wells. The observed line width is significantly broadened with increasing temperature. We then present our theoretical results on homogeneous line broadening due to temperature fluctuations for our experimental system. Our numerical simulations clearly indicate that, temperature fluctuations can account for the observed finite width of the emission lines at high-temperatures.

KW - Intersub-band transitions

KW - Quantum dots

KW - Quantum wells

UR - http://www.scopus.com/inward/record.url?scp=4544350460&partnerID=8YFLogxK

U2 - 10.1016/j.physe.2004.05.003

DO - 10.1016/j.physe.2004.05.003

M3 - Article

AN - SCOPUS:4544350460

SN - 1386-9477

VL - 24

SP - 272

EP - 277

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 3-4

ER -

Temperature-induced broadening of the emission lines from a quantum-dot nanostructure

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this