Photon mapping of quantum dots using a scanning tunneling microscope
(2002) In Applied Physics Letters 81(23). p.4443-4445- Abstract
- Scanning tunneling microscopy (STM) and scanning tunneling luminescence (STL) have been used to investigate the geometric and optical properties of individual self-assembled InP quantum dots overgrown with a thin layer of GaInP. STL spectra and monochromatic photon maps were used to correlate the surface topography with the optical properties of single quantum dots. We find a spatial resolution of about 10 nm in the photon maps. Theoretical emission spectra were calculated by six-band k.p theory using a realistic shape of the dot as well as of the cap layer. The calculated emission spectrum of a single dot is in good agreement with the experimental findings. (C) 2002 American Institute of Physics.
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/record/322896
- author
- Håkanson, Ulf LU ; Johansson, Mikael LU ; Holm, Magnus LU ; Pryor, C; Samuelson, Lars LU ; Seifert, Werner LU and Pistol, Mats-Erik LU
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Physics Letters
- volume
- 81
- issue
- 23
- pages
- 4443 - 4445
- publisher
- American Institute of Physics
- external identifiers
-
- wos:000179481900044
- scopus:0037011564
- ISSN
- 0003-6951
- DOI
- 10.1063/1.1527239
- language
- English
- LU publication?
- yes
- id
- 70f1e8bf-362d-4c77-88af-fc6e8451d8c1 (old id 322896)
- date added to LUP
- 2007-08-23 08:27:17
- date last changed
- 2018-03-18 03:48:35
@article{70f1e8bf-362d-4c77-88af-fc6e8451d8c1, abstract = {Scanning tunneling microscopy (STM) and scanning tunneling luminescence (STL) have been used to investigate the geometric and optical properties of individual self-assembled InP quantum dots overgrown with a thin layer of GaInP. STL spectra and monochromatic photon maps were used to correlate the surface topography with the optical properties of single quantum dots. We find a spatial resolution of about 10 nm in the photon maps. Theoretical emission spectra were calculated by six-band k.p theory using a realistic shape of the dot as well as of the cap layer. The calculated emission spectrum of a single dot is in good agreement with the experimental findings. (C) 2002 American Institute of Physics.}, author = {Håkanson, Ulf and Johansson, Mikael and Holm, Magnus and Pryor, C and Samuelson, Lars and Seifert, Werner and Pistol, Mats-Erik}, issn = {0003-6951}, language = {eng}, number = {23}, pages = {4443--4445}, publisher = {American Institute of Physics}, series = {Applied Physics Letters}, title = {Photon mapping of quantum dots using a scanning tunneling microscope}, url = {http://dx.doi.org/10.1063/1.1527239}, volume = {81}, year = {2002}, }