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Advanced radial junction thin film photovoltaics and detectors built on standing silicon nanowires.

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Title: Advanced radial junction thin film photovoltaics and detectors built on standing silicon nanowires.
Authors: Ting Zhang1, Junzhuan Wang1,2 wangjz@nju.edu.cn, Linwei Yu1,2,3 linwei.yu@polytechnique.edu, Jun Xu1, Pere Roca i Cabarrocas3
Source: Nanotechnology. 7/26/2019, Vol. 30 Issue 30, p1-1. 1p.
Subjects: Silicon nanowires, Thin films, Silicon solar cells, Photovoltaic power generation, Structural optimization, Planar antennas, Biomimetic materials, Blind source separation
Abstract: Three-dimensional (3D) construction of radial junction hydrogenated amorphous silicon (a-Si:H) thin film solar cells on standing silicon nanowires (SiNWs) is a promising strategy to maximize the light harvesting performance and improve the photocarrier collection in an optimized junction configuration. The unique light in-coupling and absorption behaviour in the antenna-like 3D photonic structures also necessitates a set of new theoretical models and simulation tools to design, predict and optimize the photovoltaic performance of radial junction solar cells, which can be rather different from planar junction solar cells. Recently, the performance of radial junction a-Si:H thin film solar cells has progressed steadily to a level comparable or even superior to that of their planar counterparts, with plenty of room for further improvement. This review will first address the growth strategy and critical parameter control of SiNWs produced via a plasma-assisted low-temperature vapour–liquid–solid procedure using low-melting-point metals as the catalyst. Then, the construction of high-performance radial junction thin film solar cells over the standing SiNW matrix, as well as their optimal structural designs, will be introduced. At the end, the new applications of 3D radial junction units will be summarized, which include, for example, the construction of very flexible, low-cost and efficient a-Si:H solar cells with the highest power-to-weight ratio, the demonstration of highly sensitive solar-blind photodetectors operating at the ultraviolet wavelength spectrum and the development of novel biomimetic radial tandem junction photodetectors with an intrinsic red–green–blue (RGB) colour distinguishing capability. [ABSTRACT FROM AUTHOR]
Copyright of Nanotechnology is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Advanced radial junction thin film photovoltaics and detectors built on standing silicon nanowires.
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  Data: <searchLink fieldCode="AR" term="%22Ting+Zhang%22">Ting Zhang</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Junzhuan+Wang%22">Junzhuan Wang</searchLink><relatesTo>1,2</relatesTo><i> wangjz@nju.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Linwei+Yu%22">Linwei Yu</searchLink><relatesTo>1,2,3</relatesTo><i> linwei.yu@polytechnique.edu</i><br /><searchLink fieldCode="AR" term="%22Jun+Xu%22">Jun Xu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Pere+Roca+i+Cabarrocas%22">Pere Roca i Cabarrocas</searchLink><relatesTo>3</relatesTo>
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  Data: <searchLink fieldCode="DE" term="%22Silicon+nanowires%22">Silicon nanowires</searchLink><br /><searchLink fieldCode="DE" term="%22Thin+films%22">Thin films</searchLink><br /><searchLink fieldCode="DE" term="%22Silicon+solar+cells%22">Silicon solar cells</searchLink><br /><searchLink fieldCode="DE" term="%22Photovoltaic+power+generation%22">Photovoltaic power generation</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+optimization%22">Structural optimization</searchLink><br /><searchLink fieldCode="DE" term="%22Planar+antennas%22">Planar antennas</searchLink><br /><searchLink fieldCode="DE" term="%22Biomimetic+materials%22">Biomimetic materials</searchLink><br /><searchLink fieldCode="DE" term="%22Blind+source+separation%22">Blind source separation</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Three-dimensional (3D) construction of radial junction hydrogenated amorphous silicon (a-Si:H) thin film solar cells on standing silicon nanowires (SiNWs) is a promising strategy to maximize the light harvesting performance and improve the photocarrier collection in an optimized junction configuration. The unique light in-coupling and absorption behaviour in the antenna-like 3D photonic structures also necessitates a set of new theoretical models and simulation tools to design, predict and optimize the photovoltaic performance of radial junction solar cells, which can be rather different from planar junction solar cells. Recently, the performance of radial junction a-Si:H thin film solar cells has progressed steadily to a level comparable or even superior to that of their planar counterparts, with plenty of room for further improvement. This review will first address the growth strategy and critical parameter control of SiNWs produced via a plasma-assisted low-temperature vapour–liquid–solid procedure using low-melting-point metals as the catalyst. Then, the construction of high-performance radial junction thin film solar cells over the standing SiNW matrix, as well as their optimal structural designs, will be introduced. At the end, the new applications of 3D radial junction units will be summarized, which include, for example, the construction of very flexible, low-cost and efficient a-Si:H solar cells with the highest power-to-weight ratio, the demonstration of highly sensitive solar-blind photodetectors operating at the ultraviolet wavelength spectrum and the development of novel biomimetic radial tandem junction photodetectors with an intrinsic red–green–blue (RGB) colour distinguishing capability. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Nanotechnology is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1088/1361-6528/ab0e57
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      – Code: eng
        Text: English
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    Subjects:
      – SubjectFull: Silicon nanowires
        Type: general
      – SubjectFull: Thin films
        Type: general
      – SubjectFull: Silicon solar cells
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      – SubjectFull: Photovoltaic power generation
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      – SubjectFull: Structural optimization
        Type: general
      – SubjectFull: Planar antennas
        Type: general
      – SubjectFull: Biomimetic materials
        Type: general
      – SubjectFull: Blind source separation
        Type: general
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      – TitleFull: Advanced radial junction thin film photovoltaics and detectors built on standing silicon nanowires.
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            NameFull: Ting Zhang
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            NameFull: Junzhuan Wang
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            NameFull: Linwei Yu
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            NameFull: Jun Xu
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              M: 07
              Text: 7/26/2019
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              Y: 2019
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              Value: 30
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