Structural Properties of Wurtzite InP-InGaAs Nanowire Core-Shell Heterostructures
(2015) In Nano Letters 15(4). p.2462-2467- Abstract
- We report on growth and characterization of wurtzite InP-In1-xGaxAs core-shell nanowire heterostructures. A range of nanowire structures with different Ga concentration in the shell was characterized with transmission electron microscopy and X-ray diffraction. We found that the main part of the nanowires has a pure wurtzite crystal structure, with occasional stacking faults occurring only at the top and bottom. This allowed us to determine the structural properties of wurtzite In1-xGaxAs. The InP-In1-xGaxAs core-shell nanowires show a triangular and hexagonal facet structure of {1100} and {10 (10) over bar} planes. X-ray diffraction measurements showed that the core and the shell are pseudomorphic along the c-axis, and the strained axial... (More)
- We report on growth and characterization of wurtzite InP-In1-xGaxAs core-shell nanowire heterostructures. A range of nanowire structures with different Ga concentration in the shell was characterized with transmission electron microscopy and X-ray diffraction. We found that the main part of the nanowires has a pure wurtzite crystal structure, with occasional stacking faults occurring only at the top and bottom. This allowed us to determine the structural properties of wurtzite In1-xGaxAs. The InP-In1-xGaxAs core-shell nanowires show a triangular and hexagonal facet structure of {1100} and {10 (10) over bar} planes. X-ray diffraction measurements showed that the core and the shell are pseudomorphic along the c-axis, and the strained axial lattice constant is closer to the relaxed In1-xGaxAs shell. Microphotoluminescence measurements of the nanowires show emission in the infrared regime, which makes them suitable for applications in optical communication. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/5401706
- author
- Heurlin, Magnus
LU
; Stankevic, Tomas
; Mickevicius, Simas
; Yngman, Sofie
LU
; Lindgren, David
LU
; Mikkelsen, Anders
LU
; Feidenhans'l, Robert
; Borgström, Magnus
LU
and Samuelson, Lars LU
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Nanowire, core-shell, wurtzite, X-ray diffraction, InP, InGaAs
- in
- Nano Letters
- volume
- 15
- issue
- 4
- pages
- 2462 - 2467
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000352750200038
- scopus:84926671074
- pmid:25714126
- ISSN
- 1530-6992
- DOI
- 10.1021/nl5049127
- language
- English
- LU publication?
- yes
- id
- 262ab5b2-7e87-488f-acb0-71ec48b5d1ec (old id 5401706)
- date added to LUP
- 2016-04-01 14:02:19
- date last changed
- 2024-10-11 10:39:02
@article{262ab5b2-7e87-488f-acb0-71ec48b5d1ec, abstract = {{We report on growth and characterization of wurtzite InP-In1-xGaxAs core-shell nanowire heterostructures. A range of nanowire structures with different Ga concentration in the shell was characterized with transmission electron microscopy and X-ray diffraction. We found that the main part of the nanowires has a pure wurtzite crystal structure, with occasional stacking faults occurring only at the top and bottom. This allowed us to determine the structural properties of wurtzite In1-xGaxAs. The InP-In1-xGaxAs core-shell nanowires show a triangular and hexagonal facet structure of {1100} and {10 (10) over bar} planes. X-ray diffraction measurements showed that the core and the shell are pseudomorphic along the c-axis, and the strained axial lattice constant is closer to the relaxed In1-xGaxAs shell. Microphotoluminescence measurements of the nanowires show emission in the infrared regime, which makes them suitable for applications in optical communication.}}, author = {{Heurlin, Magnus and Stankevic, Tomas and Mickevicius, Simas and Yngman, Sofie and Lindgren, David and Mikkelsen, Anders and Feidenhans'l, Robert and Borgström, Magnus and Samuelson, Lars}}, issn = {{1530-6992}}, keywords = {{Nanowire; core-shell; wurtzite; X-ray diffraction; InP; InGaAs}}, language = {{eng}}, number = {{4}}, pages = {{2462--2467}}, publisher = {{The American Chemical Society (ACS)}}, series = {{Nano Letters}}, title = {{Structural Properties of Wurtzite InP-InGaAs Nanowire Core-Shell Heterostructures}}, url = {{http://dx.doi.org/10.1021/nl5049127}}, doi = {{10.1021/nl5049127}}, volume = {{15}}, year = {{2015}}, }