Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Intersubband Quantum Disc-in-Nanowire Photodetectors with Normal-Incidence Response in the Long-Wavelength Infrared

Karimi, Mohammad LU ; Heurlin, Magnus LU ; Limpert, Steven LU orcid ; Jain, Vishal LU ; Zeng, Xulu LU ; Geijselaers, Irene LU ; Nowzari, Ali LU ; Fu, Ying ; Samuelson, Lars LU and Linke, Heiner LU orcid , et al. (2018) In Nano Letters 18(1). p.365-372
Abstract
Semiconductor nanowires have great potential for realizing broadband photodetectors monolithically integrated with silicon. However, the spectral range of such detectors has so far been limited to selected regions in the ultraviolet, visible, and near-infrared regions. Here, we report on the first intersubband nanowire heterostructure array photodetectors exhibiting a spectrally resolved photoresponse from the visible to long-wavelength infrared. In particular, the infrared response from 3 to 20 μm is enabled by intersubband transitions in low-bandgap InAsP quantum discs synthesized axially within InP nanowires. The intriguing optical characteristics, including unexpected sensitivity to normal incident radiation, are explained by... (More)
Semiconductor nanowires have great potential for realizing broadband photodetectors monolithically integrated with silicon. However, the spectral range of such detectors has so far been limited to selected regions in the ultraviolet, visible, and near-infrared regions. Here, we report on the first intersubband nanowire heterostructure array photodetectors exhibiting a spectrally resolved photoresponse from the visible to long-wavelength infrared. In particular, the infrared response from 3 to 20 μm is enabled by intersubband transitions in low-bandgap InAsP quantum discs synthesized axially within InP nanowires. The intriguing optical characteristics, including unexpected sensitivity to normal incident radiation, are explained by excitation of the longitudinal component of optical modes in the photonic crystal formed by the nanostructured portion of the detectors. Our results provide a generalizable insight into how broadband nanowire photodetectors may be designed and how engineered nanowire heterostructures open up new, fascinating opportunities for optoelectronics. (Less)
Please use this url to cite or link to this publication:
author
; ; ; ; ; ; ; ; and , et al. (More)
; ; ; ; ; ; ; ; ; ; and (Less)
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nano Letters
volume
18
issue
1
pages
365 - 372
publisher
The American Chemical Society (ACS)
external identifiers
  • scopus:85040312470
  • pmid:29256612
ISSN
1530-6992
DOI
10.1021/acs.nanolett.7b04217
language
English
LU publication?
yes
id
555a76fb-f3ca-445d-9d32-82f7126b9788
date added to LUP
2018-01-20 13:08:44
date last changed
2022-03-31 14:58:17
@article{555a76fb-f3ca-445d-9d32-82f7126b9788,
  abstract     = {{Semiconductor nanowires have great potential for realizing broadband photodetectors monolithically integrated with silicon. However, the spectral range of such detectors has so far been limited to selected regions in the ultraviolet, visible, and near-infrared regions. Here, we report on the first intersubband nanowire heterostructure array photodetectors exhibiting a spectrally resolved photoresponse from the visible to long-wavelength infrared. In particular, the infrared response from 3 to 20 μm is enabled by intersubband transitions in low-bandgap InAsP quantum discs synthesized axially within InP nanowires. The intriguing optical characteristics, including unexpected sensitivity to normal incident radiation, are explained by excitation of the longitudinal component of optical modes in the photonic crystal formed by the nanostructured portion of the detectors. Our results provide a generalizable insight into how broadband nanowire photodetectors may be designed and how engineered nanowire heterostructures open up new, fascinating opportunities for optoelectronics.}},
  author       = {{Karimi, Mohammad and Heurlin, Magnus and Limpert, Steven and Jain, Vishal and Zeng, Xulu and Geijselaers, Irene and Nowzari, Ali and Fu, Ying and Samuelson, Lars and Linke, Heiner and Borgström, Magnus and Pettersson, Håkan}},
  issn         = {{1530-6992}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{365--372}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{Nano Letters}},
  title        = {{Intersubband Quantum Disc-in-Nanowire Photodetectors with Normal-Incidence Response in the Long-Wavelength Infrared}},
  url          = {{http://dx.doi.org/10.1021/acs.nanolett.7b04217}},
  doi          = {{10.1021/acs.nanolett.7b04217}},
  volume       = {{18}},
  year         = {{2018}},
}