Coulomb blockade from the shell of an InP-InAs core-shell nanowire with a triangular cross section
(2019) In Applied Physics Letters 114(5).- Abstract
We report on growth of InP-InAs core-shell nanowires and demonstration of the formation of single quantum structures, which show the Coulomb blockade effect, over entire lengths of the nanowires. The core-shell nanowires are grown by a selective area growth technique via metal-organic vapor phase epitaxy. The as-grown core-shell nanowires are found to be of wurtzite crystals. The InP cores have a hexagonal cross section, while the InAs shells are grown preferentially on specific { 1 1 ¯ 00} facets, leading to the formation of the core-shell nanowires with an overall triangular cross section. The grown core-shell nanowires are transferred onto a Si/SiO ... (More)
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We report on growth of InP-InAs core-shell nanowires and demonstration of the formation of single quantum structures, which show the Coulomb blockade effect, over entire lengths of the nanowires. The core-shell nanowires are grown by a selective area growth technique via metal-organic vapor phase epitaxy. The as-grown core-shell nanowires are found to be of wurtzite crystals. The InP cores have a hexagonal cross section, while the InAs shells are grown preferentially on specific { 1 1 ¯ 00} facets, leading to the formation of the core-shell nanowires with an overall triangular cross section. The grown core-shell nanowires are transferred onto a Si/SiO
2
substrate and then contacted by several narrow metal electrodes. Low-temperature transport measurements show the Coulomb-blockade effect. We analyze the measured gate capacitance and single electron charging energy of the devices and demonstrate that a quantum structure which shows the Coulomb blockade effect of a many-electron quantum dot is formed over the full length of a single core-shell nanowire and consists of the entire InAs shell in the nanowire.
- author
- Göransson, D. J.O.
LU
; Heurlin, M.
LU
; Dalelkhan, B.
LU
; Abay, S.
; Messing, M. E.
LU
; Maisi, V. F.
LU
; Borgström, M. T.
LU
and Xu, H. Q. LU
- organization
- publishing date
- 2019-02-04
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Physics Letters
- volume
- 114
- issue
- 5
- article number
- 053108
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- scopus:85061257170
- ISSN
- 0003-6951
- DOI
- 10.1063/1.5084222
- language
- English
- LU publication?
- yes
- id
- 8f2dfdc5-19f7-42a8-a55e-61808493cd2a
- date added to LUP
- 2019-02-19 10:16:49
- date last changed
- 2025-04-04 15:09:15
@article{8f2dfdc5-19f7-42a8-a55e-61808493cd2a, abstract = {{<p><br> We report on growth of InP-InAs core-shell nanowires and demonstration of the formation of single quantum structures, which show the Coulomb blockade effect, over entire lengths of the nanowires. The core-shell nanowires are grown by a selective area growth technique via metal-organic vapor phase epitaxy. The as-grown core-shell nanowires are found to be of wurtzite crystals. The InP cores have a hexagonal cross section, while the InAs shells are grown preferentially on specific { 1 1 ¯ 00} facets, leading to the formation of the core-shell nanowires with an overall triangular cross section. The grown core-shell nanowires are transferred onto a Si/SiO <br> <sub>2</sub><br> substrate and then contacted by several narrow metal electrodes. Low-temperature transport measurements show the Coulomb-blockade effect. We analyze the measured gate capacitance and single electron charging energy of the devices and demonstrate that a quantum structure which shows the Coulomb blockade effect of a many-electron quantum dot is formed over the full length of a single core-shell nanowire and consists of the entire InAs shell in the nanowire. <br> </p>}}, author = {{Göransson, D. J.O. and Heurlin, M. and Dalelkhan, B. and Abay, S. and Messing, M. E. and Maisi, V. F. and Borgström, M. T. and Xu, H. Q.}}, issn = {{0003-6951}}, language = {{eng}}, month = {{02}}, number = {{5}}, publisher = {{American Institute of Physics (AIP)}}, series = {{Applied Physics Letters}}, title = {{Coulomb blockade from the shell of an InP-InAs core-shell nanowire with a triangular cross section}}, url = {{http://dx.doi.org/10.1063/1.5084222}}, doi = {{10.1063/1.5084222}}, volume = {{114}}, year = {{2019}}, }