Optical properties of rotationally twinned InP nanowire heterostructures
(2008) In Nano Letters 8(3). p.836-841- Abstract
- We have developed a technique so that both transmission electron microscopy and microphotoluminescence can be performed on the same semiconductor nanowire over a large range of optical power, thus allowing us to directly correlate structural and optical properties of rotationally twinned zinc blende InP nanowires. We have constructed the energy band diagram of the resulting multiquantum well heterostructure and have performed detailed quantum mechanical calculations of the electron and hole wave functions. The excitation power dependent blue-shift of the photoluminescence can be explained in terms of the predicted staggered band alignment of the rotationally twinned zinc blende/wurzite InP heterostructure and of the concomitant diagonal... (More)
- We have developed a technique so that both transmission electron microscopy and microphotoluminescence can be performed on the same semiconductor nanowire over a large range of optical power, thus allowing us to directly correlate structural and optical properties of rotationally twinned zinc blende InP nanowires. We have constructed the energy band diagram of the resulting multiquantum well heterostructure and have performed detailed quantum mechanical calculations of the electron and hole wave functions. The excitation power dependent blue-shift of the photoluminescence can be explained in terms of the predicted staggered band alignment of the rotationally twinned zinc blende/wurzite InP heterostructure and of the concomitant diagonal transitions between localized electron and hole states responsible for radiative recombination. The ability of rotational twinning to introduce a heterostructure in a chemically homogeneous nanowire material and alter in a major way its optical properties opens new possibilities for band-structure engineering. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1185950
- author
- Bao, Jiming ; Bell, David C ; Capasso, Federico ; Wagner, Jakob LU ; Mårtensson, Thomas LU ; Trägårdh, Johanna LU and Samuelson, Lars LU
- organization
- publishing date
- 2008
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Nano Letters
- volume
- 8
- issue
- 3
- pages
- 836 - 841
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000253947400013
- scopus:61449125972
- pmid:18275163
- ISSN
- 1530-6992
- DOI
- 10.1021/nl072921e
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Solid State Physics (011013006), Polymer and Materials Chemistry (LTH) (011001041)
- id
- e7e35448-8b91-4e50-8822-bea733e03a38 (old id 1185950)
- date added to LUP
- 2016-04-01 13:57:08
- date last changed
- 2022-03-21 21:26:49
@article{e7e35448-8b91-4e50-8822-bea733e03a38, abstract = {{We have developed a technique so that both transmission electron microscopy and microphotoluminescence can be performed on the same semiconductor nanowire over a large range of optical power, thus allowing us to directly correlate structural and optical properties of rotationally twinned zinc blende InP nanowires. We have constructed the energy band diagram of the resulting multiquantum well heterostructure and have performed detailed quantum mechanical calculations of the electron and hole wave functions. The excitation power dependent blue-shift of the photoluminescence can be explained in terms of the predicted staggered band alignment of the rotationally twinned zinc blende/wurzite InP heterostructure and of the concomitant diagonal transitions between localized electron and hole states responsible for radiative recombination. The ability of rotational twinning to introduce a heterostructure in a chemically homogeneous nanowire material and alter in a major way its optical properties opens new possibilities for band-structure engineering.}}, author = {{Bao, Jiming and Bell, David C and Capasso, Federico and Wagner, Jakob and Mårtensson, Thomas and Trägårdh, Johanna and Samuelson, Lars}}, issn = {{1530-6992}}, language = {{eng}}, number = {{3}}, pages = {{836--841}}, publisher = {{The American Chemical Society (ACS)}}, series = {{Nano Letters}}, title = {{Optical properties of rotationally twinned InP nanowire heterostructures}}, url = {{http://dx.doi.org/10.1021/nl072921e}}, doi = {{10.1021/nl072921e}}, volume = {{8}}, year = {{2008}}, }