Two-dimensional electron gas at wurtzite–zinc-blende InP interfaces induced by modulation doping
(2020) In Applied Physics Letters 116.- Abstract
- The quality, such as long-range correlation and mobility, of a two-dimensional electron gas (2DEG) is limited by, among other factors, interface roughness, which is inherent to the use of compositional heterostructures. Polytypic heterostructures have atomically sharp interfaces and minimal strain, decreasing the interface roughness, which may increase the mobility and long-range correlation of 2DEGs. In this work, we show the formation of a 2DEG at the wurtzite–zinc blende interface in partially n-type-doped InP nanowires using power-dependent photoluminescence. We additionally determined the wurtzite–zinc blende InP valence band offset to be 35 meV <DEv < 70 meV. Our results may enable the study of electron gases at interfaces,... (More)
- The quality, such as long-range correlation and mobility, of a two-dimensional electron gas (2DEG) is limited by, among other factors, interface roughness, which is inherent to the use of compositional heterostructures. Polytypic heterostructures have atomically sharp interfaces and minimal strain, decreasing the interface roughness, which may increase the mobility and long-range correlation of 2DEGs. In this work, we show the formation of a 2DEG at the wurtzite–zinc blende interface in partially n-type-doped InP nanowires using power-dependent photoluminescence. We additionally determined the wurtzite–zinc blende InP valence band offset to be 35 meV <DEv < 70 meV. Our results may enable the study of electron gases at interfaces, which are atomically flat over large areas. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/dca3a33f-0881-4ac6-98b3-800be64dd905
- author
- Geijselaers, Irene LU ; Lehmann, Sebastian LU ; Dick, Kimberly LU and Pistol, Mats-Erik LU
- organization
- publishing date
- 2020-06-09
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Physics Letters
- volume
- 116
- pages
- 5 pages
- publisher
- American Institute of Physics (AIP)
- ISSN
- 0003-6951
- DOI
- 10.1063/5.0009818
- project
- Optical studies of crystal phase heterostructures
- language
- English
- LU publication?
- yes
- id
- dca3a33f-0881-4ac6-98b3-800be64dd905
- date added to LUP
- 2021-09-28 13:34:05
- date last changed
- 2022-03-31 14:54:27
@article{dca3a33f-0881-4ac6-98b3-800be64dd905, abstract = {{The quality, such as long-range correlation and mobility, of a two-dimensional electron gas (2DEG) is limited by, among other factors, interface roughness, which is inherent to the use of compositional heterostructures. Polytypic heterostructures have atomically sharp interfaces and minimal strain, decreasing the interface roughness, which may increase the mobility and long-range correlation of 2DEGs. In this work, we show the formation of a 2DEG at the wurtzite–zinc blende interface in partially n-type-doped InP nanowires using power-dependent photoluminescence. We additionally determined the wurtzite–zinc blende InP valence band offset to be 35 meV <DEv < 70 meV. Our results may enable the study of electron gases at interfaces, which are atomically flat over large areas.}}, author = {{Geijselaers, Irene and Lehmann, Sebastian and Dick, Kimberly and Pistol, Mats-Erik}}, issn = {{0003-6951}}, language = {{eng}}, month = {{06}}, publisher = {{American Institute of Physics (AIP)}}, series = {{Applied Physics Letters}}, title = {{Two-dimensional electron gas at wurtzite–zinc-blende InP interfaces induced by modulation doping}}, url = {{http://dx.doi.org/10.1063/5.0009818}}, doi = {{10.1063/5.0009818}}, volume = {{116}}, year = {{2020}}, }