Elucidating the localized plasmonic enhancement effects from a single Ag nanowire in organic solar cells
The origins of performance enhancement in hybrid plasmonic organic photovoltaic devices are often embroiled in a complex interaction of light scattering, localized surface plasmon resonances, exciton–plasmon energy transfer and even nonplasmonic effects. To clearly deconvolve the plasmonic contribut...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2015
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| Online Access: | https://hdl.handle.net/10356/106658 http://hdl.handle.net/10220/25024 |
| _version_ | 1811685868213108736 |
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| author | Liu, Xinfeng Wu, Bo Zhang, Qing Yip, Jing Ngei Yu, Guannan Xiong, Qihua Mathews, Nripan Sum, Tze Chien |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Liu, Xinfeng Wu, Bo Zhang, Qing Yip, Jing Ngei Yu, Guannan Xiong, Qihua Mathews, Nripan Sum, Tze Chien |
| author_sort | Liu, Xinfeng |
| collection | NTU |
| description | The origins of performance enhancement in hybrid plasmonic organic photovoltaic devices are often embroiled in a complex interaction of light scattering, localized surface plasmon resonances, exciton–plasmon energy transfer and even nonplasmonic effects. To clearly deconvolve the plasmonic contributions from a single nanostructure, we herein investigate the influence of a single silver nanowire (NW) on the charge carriers in bulk heterojunction polymer solar cells using spatially resolved optical spectroscopy, and correlate to electrical device characterization. Polarization-dependent photocurrent enhancements with a maximum of ∼36% over the reference are observed when the transverse mode of the plasmonic excitations in the Ag NW is activated. The ensuing higher absorbance and light scattering induced by the electronic motion perpendicular to the NW long axis lead to increased exciton and polaron densities instead of direct surface plasmon-exciton energy transfer. Finite-difference time-domain simulations also validate these findings. Importantly, our study at the single nanostructure level explores the fundamental limits of plasmonic enhancement achievable in organic solar cells with a single plasmonic nanostructure. |
| first_indexed | 2024-10-01T04:51:21Z |
| format | Journal Article |
| id | ntu-10356/106658 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:51:21Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/1066582021-01-08T06:57:45Z Elucidating the localized plasmonic enhancement effects from a single Ag nanowire in organic solar cells Liu, Xinfeng Wu, Bo Zhang, Qing Yip, Jing Ngei Yu, Guannan Xiong, Qihua Mathews, Nripan Sum, Tze Chien School of Electrical and Electronic Engineering School of Materials Science & Engineering School of Physical and Mathematical Sciences Energy Research Institute @ NTU (ERI@N) DRNTU::Engineering::Electrical and electronic engineering::Nanoelectronics The origins of performance enhancement in hybrid plasmonic organic photovoltaic devices are often embroiled in a complex interaction of light scattering, localized surface plasmon resonances, exciton–plasmon energy transfer and even nonplasmonic effects. To clearly deconvolve the plasmonic contributions from a single nanostructure, we herein investigate the influence of a single silver nanowire (NW) on the charge carriers in bulk heterojunction polymer solar cells using spatially resolved optical spectroscopy, and correlate to electrical device characterization. Polarization-dependent photocurrent enhancements with a maximum of ∼36% over the reference are observed when the transverse mode of the plasmonic excitations in the Ag NW is activated. The ensuing higher absorbance and light scattering induced by the electronic motion perpendicular to the NW long axis lead to increased exciton and polaron densities instead of direct surface plasmon-exciton energy transfer. Finite-difference time-domain simulations also validate these findings. Importantly, our study at the single nanostructure level explores the fundamental limits of plasmonic enhancement achievable in organic solar cells with a single plasmonic nanostructure. Accepted version 2015-02-06T04:06:40Z 2019-12-06T22:15:46Z 2015-02-06T04:06:40Z 2019-12-06T22:15:46Z 2014 2014 Journal Article Liu, X., Wu, B., Zhang, Q., Yip, J. N., Yu, G., Xiong, Q., et al. (2014). Elucidating the localized plasmonic enhancement effects from a single Ag nanowire in organic solar cells. ACS nano, 8(10), 10101–10110. https://hdl.handle.net/10356/106658 http://hdl.handle.net/10220/25024 10.1021/nn505020e 183208 en ACS nano © 2014 American Chemical Society. This is the author created version of a work that has been peer reviewed and accepted for publication by ACS Nano, American Chemical Society. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1021/nn505020e]. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Nanoelectronics Liu, Xinfeng Wu, Bo Zhang, Qing Yip, Jing Ngei Yu, Guannan Xiong, Qihua Mathews, Nripan Sum, Tze Chien Elucidating the localized plasmonic enhancement effects from a single Ag nanowire in organic solar cells |
| title | Elucidating the localized plasmonic enhancement effects from a single Ag nanowire in organic solar cells |
| title_full | Elucidating the localized plasmonic enhancement effects from a single Ag nanowire in organic solar cells |
| title_fullStr | Elucidating the localized plasmonic enhancement effects from a single Ag nanowire in organic solar cells |
| title_full_unstemmed | Elucidating the localized plasmonic enhancement effects from a single Ag nanowire in organic solar cells |
| title_short | Elucidating the localized plasmonic enhancement effects from a single Ag nanowire in organic solar cells |
| title_sort | elucidating the localized plasmonic enhancement effects from a single ag nanowire in organic solar cells |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Nanoelectronics |
| url | https://hdl.handle.net/10356/106658 http://hdl.handle.net/10220/25024 |
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