Nanowire photodetectors with embedded quantum heterostructures for infrared detection
Karimi, Mohammad LU ; Heurlin, Magnus LU ; Limpert, Steven LU
; Jain, Vishal
LU
; Mansouri, Ebrahim
; Zeng, Xulu
LU
; Samuelson, Lars
LU
; Linke, Heiner
LU
; Borgström, Magnus
LU
and Pettersson, Håkan
LU
(2019)
In Infrared Physics and Technology
96.
p.209-212
- Abstract
- Nanowires offer remarkable opportunities for realizing new optoelectronic devices because of their unique fundamental properties. The ability to engineer nanowire heterostructures with large bandgap variations is particularly interesting for technologically important broadband photodetector applications. Here we report on infrared photodetectors based on arrays of InP nanowires with embedded InAsP quantum discs. We demonstrate a strongly reduced dark current in the detector elements by compensating the unintentional n-doping in the nominal intrinsic region of the InP nanowires by in-situ doping with Zn, a crucial step towards realizing high-performance devices. The optimized array detectors show a broad spectral sensitivity at normal... (More)
- Nanowires offer remarkable opportunities for realizing new optoelectronic devices because of their unique fundamental properties. The ability to engineer nanowire heterostructures with large bandgap variations is particularly interesting for technologically important broadband photodetector applications. Here we report on infrared photodetectors based on arrays of InP nanowires with embedded InAsP quantum discs. We demonstrate a strongly reduced dark current in the detector elements by compensating the unintentional n-doping in the nominal intrinsic region of the InP nanowires by in-situ doping with Zn, a crucial step towards realizing high-performance devices. The optimized array detectors show a broad spectral sensitivity at normal incidence for wavelengths from visible to far-infrared up to 20 μm, promoted by both interband and intersubband transitions. Optical simulations show that the unexpected normal incidence response at long wavelengths is due to non-zero longitudinal modes hosted by the nanowires. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/6a210a6b-76c9-45de-a20b-8577e2543e24
- author
- Karimi, Mohammad
LU
; Heurlin, Magnus
LU
; Limpert, Steven
LU
; Jain, Vishal
LU
; Mansouri, Ebrahim
; Zeng, Xulu
LU
; Samuelson, Lars
LU
; Linke, Heiner
LU
; Borgström, Magnus
LU
and Pettersson, Håkan
LU
- organization
- publishing date
- 2019
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Infrared Physics and Technology
- volume
- 96
- pages
- 209 - 212
- publisher
- Elsevier
- external identifiers
-
- scopus:85057545191
- ISSN
- 1350-4495
- DOI
- 10.1016/j.infrared.2018.11.009
- language
- English
- LU publication?
- yes
- id
- 6a210a6b-76c9-45de-a20b-8577e2543e24
- date added to LUP
- 2018-12-10 12:52:36
- date last changed
- 2023-11-18 07:54:27
@article{6a210a6b-76c9-45de-a20b-8577e2543e24,
abstract = {{Nanowires offer remarkable opportunities for realizing new optoelectronic devices because of their unique fundamental properties. The ability to engineer nanowire heterostructures with large bandgap variations is particularly interesting for technologically important broadband photodetector applications. Here we report on infrared photodetectors based on arrays of InP nanowires with embedded InAsP quantum discs. We demonstrate a strongly reduced dark current in the detector elements by compensating the unintentional n-doping in the nominal intrinsic region of the InP nanowires by in-situ doping with Zn, a crucial step towards realizing high-performance devices. The optimized array detectors show a broad spectral sensitivity at normal incidence for wavelengths from visible to far-infrared up to 20 μm, promoted by both interband and intersubband transitions. Optical simulations show that the unexpected normal incidence response at long wavelengths is due to non-zero longitudinal modes hosted by the nanowires.}},
author = {{Karimi, Mohammad and Heurlin, Magnus and Limpert, Steven and Jain, Vishal and Mansouri, Ebrahim and Zeng, Xulu and Samuelson, Lars and Linke, Heiner and Borgström, Magnus and Pettersson, Håkan}},
issn = {{1350-4495}},
language = {{eng}},
pages = {{209--212}},
publisher = {{Elsevier}},
series = {{Infrared Physics and Technology}},
title = {{Nanowire photodetectors with embedded quantum heterostructures for infrared detection}},
url = {{http://dx.doi.org/10.1016/j.infrared.2018.11.009}},
doi = {{10.1016/j.infrared.2018.11.009}},
volume = {{96}},
year = {{2019}},
}