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A Comparative Study of Absorption in Vertically and Laterally Oriented InP Core-Shell Nanowire Photovoltaic Devices.

Nowzari, Ali; Heurlin, Magnus; Jain, Vishal; Storm, Kristian; Hosseinnia, Ali; Anttu, Nicklas; Borgström, Magnus T; Pettersson, Håkan and Samuelson, Lars LU (2015) In Nano Letters 15(3). p.1809-1814
Abstract
We have compared the absorption in InP core-shell nanowire p-i-n junctions in lateral and vertical orientation. Arrays of vertical core-shell nanowires with 400 nm pitch and 280 nm diameter, as well as corresponding lateral single core-shell nanowires, were configured as photovoltaic devices. The photovoltaic characteristics of the samples, measured under 1 sun illumination, showed a higher absorption in lateral single nanowires compared to that in individual vertical nanowires, arranged in arrays with 400 nm pitch. Electromagnetic modeling of the structures confirmed the experimental observations and showed that the absorption in a vertical nanowire in an array depends strongly on the array pitch. The modeling demonstrated that, depending... (More)
We have compared the absorption in InP core-shell nanowire p-i-n junctions in lateral and vertical orientation. Arrays of vertical core-shell nanowires with 400 nm pitch and 280 nm diameter, as well as corresponding lateral single core-shell nanowires, were configured as photovoltaic devices. The photovoltaic characteristics of the samples, measured under 1 sun illumination, showed a higher absorption in lateral single nanowires compared to that in individual vertical nanowires, arranged in arrays with 400 nm pitch. Electromagnetic modeling of the structures confirmed the experimental observations and showed that the absorption in a vertical nanowire in an array depends strongly on the array pitch. The modeling demonstrated that, depending on the array pitch, absorption in a vertical nanowire can be lower or higher than that in a lateral nanowire with equal absorption predicted at a pitch of 510 nm for our nanowire geometry. The technology described in this Letter facilitates quantitative comparison of absorption in laterally and vertically oriented core-shell nanowire p-i-n junctions and can aid in the design, optimization, and performance evaluation of nanowire-based core-shell photovoltaic devices. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nano Letters
volume
15
issue
3
pages
1809 - 1814
publisher
The American Chemical Society
external identifiers
  • pmid:25671437
  • wos:000351188000056
  • scopus:84924598071
ISSN
1530-6992
DOI
10.1021/nl504559g
language
English
LU publication?
yes
id
4a6a3577-e5ce-4928-b3f4-acec68ab6cdf (old id 5144836)
alternative location
http://www.ncbi.nlm.nih.gov/pubmed/25671437?dopt=Abstract
date added to LUP
2015-03-07 11:51:49
date last changed
2017-10-01 03:18:28
@article{4a6a3577-e5ce-4928-b3f4-acec68ab6cdf,
  abstract     = {We have compared the absorption in InP core-shell nanowire p-i-n junctions in lateral and vertical orientation. Arrays of vertical core-shell nanowires with 400 nm pitch and 280 nm diameter, as well as corresponding lateral single core-shell nanowires, were configured as photovoltaic devices. The photovoltaic characteristics of the samples, measured under 1 sun illumination, showed a higher absorption in lateral single nanowires compared to that in individual vertical nanowires, arranged in arrays with 400 nm pitch. Electromagnetic modeling of the structures confirmed the experimental observations and showed that the absorption in a vertical nanowire in an array depends strongly on the array pitch. The modeling demonstrated that, depending on the array pitch, absorption in a vertical nanowire can be lower or higher than that in a lateral nanowire with equal absorption predicted at a pitch of 510 nm for our nanowire geometry. The technology described in this Letter facilitates quantitative comparison of absorption in laterally and vertically oriented core-shell nanowire p-i-n junctions and can aid in the design, optimization, and performance evaluation of nanowire-based core-shell photovoltaic devices.},
  author       = {Nowzari, Ali and Heurlin, Magnus and Jain, Vishal and Storm, Kristian and Hosseinnia, Ali and Anttu, Nicklas and Borgström, Magnus T and Pettersson, Håkan and Samuelson, Lars},
  issn         = {1530-6992},
  language     = {eng},
  number       = {3},
  pages        = {1809--1814},
  publisher    = {The American Chemical Society},
  series       = {Nano Letters},
  title        = {A Comparative Study of Absorption in Vertically and Laterally Oriented InP Core-Shell Nanowire Photovoltaic Devices.},
  url          = {http://dx.doi.org/10.1021/nl504559g},
  volume       = {15},
  year         = {2015},
}