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Low-temperature thermal nanoimprint lithography of anti-reflective structures for flexible low band gap organic solar cells.

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Title: Low-temperature thermal nanoimprint lithography of anti-reflective structures for flexible low band gap organic solar cells.
Authors: Kettle, J.1 j.kettle@bangor.ac.uk, Rees, A.2,3, Brousseau, E. B.3, Horie, M.4
Source: Journal of Physics D: Applied Physics. 3/13/2013, Vol. 46 Issue 10, p1-6. 6p.
Subjects: Solar cells, Lithography, Nanostructures, Polyethylene terephthalate, Glass transitions
Abstract: The effect of adding anti-reflective structures to a PCPDTBT :PCBM organic solar cell on a flexible substrate using a one-step thermal-nanoimprint lithography process has been studied. In order to process nanostructures onto polyethylene terephthalate (PET) substrates, a low glass transition polymer was used. The power conversion efficiency (PCE) was increased by 4% when the light was irradiated at normal incidence. However, at oblique angles of incidence (80°), a 32% relative increase in PCE was observed showing the enhanced light-capturing capability of the anti-reflective features. This efficiency enhancement was attributed to reduced reflection at the air-PET interface, which is supported by optical modelling data. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Physics D: Applied Physics 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: Low-temperature thermal nanoimprint lithography of anti-reflective structures for flexible low band gap organic solar cells.
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  Data: <searchLink fieldCode="AR" term="%22Kettle%2C+J%2E%22">Kettle, J.</searchLink><relatesTo>1</relatesTo><i> j.kettle@bangor.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Rees%2C+A%2E%22">Rees, A.</searchLink><relatesTo>2,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Brousseau%2C+E%2E+B%2E%22">Brousseau, E. B.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Horie%2C+M%2E%22">Horie, M.</searchLink><relatesTo>4</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Physics+D%3A+Applied+Physics%22">Journal of Physics D: Applied Physics</searchLink>. 3/13/2013, Vol. 46 Issue 10, p1-6. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Solar+cells%22">Solar cells</searchLink><br /><searchLink fieldCode="DE" term="%22Lithography%22">Lithography</searchLink><br /><searchLink fieldCode="DE" term="%22Nanostructures%22">Nanostructures</searchLink><br /><searchLink fieldCode="DE" term="%22Polyethylene+terephthalate%22">Polyethylene terephthalate</searchLink><br /><searchLink fieldCode="DE" term="%22Glass+transitions%22">Glass transitions</searchLink>
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  Data: The effect of adding anti-reflective structures to a PCPDTBT :PCBM organic solar cell on a flexible substrate using a one-step thermal-nanoimprint lithography process has been studied. In order to process nanostructures onto polyethylene terephthalate (PET) substrates, a low glass transition polymer was used. The power conversion efficiency (PCE) was increased by 4% when the light was irradiated at normal incidence. However, at oblique angles of incidence (80°), a 32% relative increase in PCE was observed showing the enhanced light-capturing capability of the anti-reflective features. This efficiency enhancement was attributed to reduced reflection at the air-PET interface, which is supported by optical modelling data. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Journal of Physics D: Applied Physics 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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        Value: 10.1088/0022-3727/46/10/105102
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      – SubjectFull: Lithography
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      – SubjectFull: Nanostructures
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      – SubjectFull: Polyethylene terephthalate
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              Text: 3/13/2013
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