Quantum-confinement effects in InAs-InP core-shell nanowires
(2007) In Journal of Physics: Condensed Matter 19(29).- Abstract
- We report the detection of quantum confinement in single InAs-InP core shell nanowires. The wires, having an InAs core with similar to 25 nm diameter, are characterized by emission spectra in which two peaks are identified under high excitation intensity conditions. The peaks are caused by emission from the ground and excited quantized levels, due to quantum confinement in the plane perpendicular to the nanowire axis. We have identified different energy contributions in the emission spectra, related to the wurtzite structure of the wires, the strain between the wurtzite core and the shell, and the confinement energy of the InAs core. Calculations based on six-band strain-dependent k (.) p theory allow the theoretical estimation of the... (More)
- We report the detection of quantum confinement in single InAs-InP core shell nanowires. The wires, having an InAs core with similar to 25 nm diameter, are characterized by emission spectra in which two peaks are identified under high excitation intensity conditions. The peaks are caused by emission from the ground and excited quantized levels, due to quantum confinement in the plane perpendicular to the nanowire axis. We have identified different energy contributions in the emission spectra, related to the wurtzite structure of the wires, the strain between the wurtzite core and the shell, and the confinement energy of the InAs core. Calculations based on six-band strain-dependent k (.) p theory allow the theoretical estimation of the confined energy states in such materials, and we found these results to be in good agreement with those from the photoluminescence studies. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/645604
- author
- Zanolli, Zeila LU ; Pistol, Mats-Erik LU ; Fröberg, Linus LU and Samuelson, Lars LU
- organization
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Physics: Condensed Matter
- volume
- 19
- issue
- 29
- article number
- 295219
- publisher
- IOP Publishing
- external identifiers
-
- wos:000247929700021
- scopus:34547282643
- ISSN
- 1361-648X
- DOI
- 10.1088/0953-8984/19/29/295219
- language
- English
- LU publication?
- yes
- id
- eff1af4e-668e-4730-b03a-7e40f5cf7657 (old id 645604)
- date added to LUP
- 2016-04-01 16:53:11
- date last changed
- 2022-03-31 11:07:03
@article{eff1af4e-668e-4730-b03a-7e40f5cf7657,
abstract = {{We report the detection of quantum confinement in single InAs-InP core shell nanowires. The wires, having an InAs core with similar to 25 nm diameter, are characterized by emission spectra in which two peaks are identified under high excitation intensity conditions. The peaks are caused by emission from the ground and excited quantized levels, due to quantum confinement in the plane perpendicular to the nanowire axis. We have identified different energy contributions in the emission spectra, related to the wurtzite structure of the wires, the strain between the wurtzite core and the shell, and the confinement energy of the InAs core. Calculations based on six-band strain-dependent k (.) p theory allow the theoretical estimation of the confined energy states in such materials, and we found these results to be in good agreement with those from the photoluminescence studies.}},
author = {{Zanolli, Zeila and Pistol, Mats-Erik and Fröberg, Linus and Samuelson, Lars}},
issn = {{1361-648X}},
language = {{eng}},
number = {{29}},
publisher = {{IOP Publishing}},
series = {{Journal of Physics: Condensed Matter}},
title = {{Quantum-confinement effects in InAs-InP core-shell nanowires}},
url = {{http://dx.doi.org/10.1088/0953-8984/19/29/295219}},
doi = {{10.1088/0953-8984/19/29/295219}},
volume = {{19}},
year = {{2007}},
}