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Unravelling processing issues of nanowire-based solar cell arrays by use of electron beam induced current measurements

Barrigón, Enrique LU ; Zhang, Yuwei LU ; Hrachowina, Lukas LU ; Otnes, Gaute LU and Borgström, Magnus T. LU (2020) In Nano Energy 71.
Abstract

III-V vertical nanowire arrays have great potential for next generation photovoltaics. Development towards high performing nanowire solar cells, which consist of a parallel connection of millions of single nanowire solar cells, requires a fast characterization technique that establishes a link between device performance and device processing. In this work, we use electron beam induced current measurements to characterize fully processed InP nanowire array solar cells at the nanoscale. Non-functional areas on fully processed devices can be quickly identified and processing induced effects on device performance can be clearly distinguished from those arising from nanowire growth. We identify how limiting factors on device performance are... (More)

III-V vertical nanowire arrays have great potential for next generation photovoltaics. Development towards high performing nanowire solar cells, which consist of a parallel connection of millions of single nanowire solar cells, requires a fast characterization technique that establishes a link between device performance and device processing. In this work, we use electron beam induced current measurements to characterize fully processed InP nanowire array solar cells at the nanoscale. Non-functional areas on fully processed devices can be quickly identified and processing induced effects on device performance can be clearly distinguished from those arising from nanowire growth. We identify how limiting factors on device performance are related to the processing procedures and provide a path to improve device performance further. In this way, electron beam induced current measurements become an essential tool for nanowire solar cell efficiency optimization, providing fast and useful information at the nanoscale and thus enabling up-scaling of the technology.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Characterization, EBIC, Nanowire solar cells, Short circuit current optimization
in
Nano Energy
volume
71
article number
104575
publisher
Elsevier
external identifiers
  • scopus:85079660071
ISSN
2211-2855
DOI
10.1016/j.nanoen.2020.104575
language
English
LU publication?
yes
id
3cfc58c2-765c-416b-bfbb-4e6104c546ff
date added to LUP
2020-03-03 14:18:16
date last changed
2020-10-07 06:54:57
@article{3cfc58c2-765c-416b-bfbb-4e6104c546ff,
  abstract     = {<p>III-V vertical nanowire arrays have great potential for next generation photovoltaics. Development towards high performing nanowire solar cells, which consist of a parallel connection of millions of single nanowire solar cells, requires a fast characterization technique that establishes a link between device performance and device processing. In this work, we use electron beam induced current measurements to characterize fully processed InP nanowire array solar cells at the nanoscale. Non-functional areas on fully processed devices can be quickly identified and processing induced effects on device performance can be clearly distinguished from those arising from nanowire growth. We identify how limiting factors on device performance are related to the processing procedures and provide a path to improve device performance further. In this way, electron beam induced current measurements become an essential tool for nanowire solar cell efficiency optimization, providing fast and useful information at the nanoscale and thus enabling up-scaling of the technology.</p>},
  author       = {Barrigón, Enrique and Zhang, Yuwei and Hrachowina, Lukas and Otnes, Gaute and Borgström, Magnus T.},
  issn         = {2211-2855},
  language     = {eng},
  publisher    = {Elsevier},
  series       = {Nano Energy},
  title        = {Unravelling processing issues of nanowire-based solar cell arrays by use of electron beam induced current measurements},
  url          = {http://dx.doi.org/10.1016/j.nanoen.2020.104575},
  doi          = {10.1016/j.nanoen.2020.104575},
  volume       = {71},
  year         = {2020},
}