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Short and ultra-short pulsed laser synthesis of plasmonic substrates for enhancing the efficiency of organic solar cells

Short and ultra-short pulsed laser synthesis of plasmonic substrates for enhancing the efficiency of organic solar cells
Short and ultra-short pulsed laser synthesis of plasmonic substrates for enhancing the efficiency of organic solar cells
One important new technology to address the rising global demand for clean, low-cost energy generation is polymer (organic) photovoltaics. However, the efficiency of these systems is currently quite low due to poor light harvesting and low charge carrier mobilities. Here, we introduce the controllable nanostructuring of thin metal films by short (25 ns, 248 nm) and ultra-short (100 femtosecond, 800 nm) laser pulses as a novel technique for the production of supported noble metal nanoparticles over large areas on polymer and ITO substrate for increased light harvesting. These laser nanostructured surfaces are employed as substrates for polymer bulk heterojunction (P3HT:PCBM) solar cells and a significant increase in the solar cell efficiency is demonstrated due to light scattering from nanoparticles excited at their surface plasmon energy. In addition, we discuss the differing mechanisms, relative merits and thermal budgets for laser nanostructuring with short and ultra-short pulses and demonstrate how the surface plasmon energy can be tuned via laser-induced alloying.
Henley, S.J.
c53e0d71-cb47-42d6-8f70-7cc8337503c1
Beliatis, M.J.
7ea74dc4-0e1e-463f-a064-4c1d55a27f5a
Silva, S.R.P.
69969d01-5ca0-4e8b-981c-d3bf21b0ab18
Mills, B.
05f1886e-96ef-420f-b856-4115f4ab36d0
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020
Henley, S.J.
c53e0d71-cb47-42d6-8f70-7cc8337503c1
Beliatis, M.J.
7ea74dc4-0e1e-463f-a064-4c1d55a27f5a
Silva, S.R.P.
69969d01-5ca0-4e8b-981c-d3bf21b0ab18
Mills, B.
05f1886e-96ef-420f-b856-4115f4ab36d0
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020

Henley, S.J., Beliatis, M.J., Silva, S.R.P., Mills, B. and Eason, R.W. (2011) Short and ultra-short pulsed laser synthesis of plasmonic substrates for enhancing the efficiency of organic solar cells. EMRS 2011 Materials Research Society Spring Meeting, Nice, France. 08 - 12 May 2011.

Record type: Conference or Workshop Item (Paper)

Abstract

One important new technology to address the rising global demand for clean, low-cost energy generation is polymer (organic) photovoltaics. However, the efficiency of these systems is currently quite low due to poor light harvesting and low charge carrier mobilities. Here, we introduce the controllable nanostructuring of thin metal films by short (25 ns, 248 nm) and ultra-short (100 femtosecond, 800 nm) laser pulses as a novel technique for the production of supported noble metal nanoparticles over large areas on polymer and ITO substrate for increased light harvesting. These laser nanostructured surfaces are employed as substrates for polymer bulk heterojunction (P3HT:PCBM) solar cells and a significant increase in the solar cell efficiency is demonstrated due to light scattering from nanoparticles excited at their surface plasmon energy. In addition, we discuss the differing mechanisms, relative merits and thermal budgets for laser nanostructuring with short and ultra-short pulses and demonstrate how the surface plasmon energy can be tuned via laser-induced alloying.

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More information

e-pub ahead of print date: May 2011
Published date: May 2011
Venue - Dates: EMRS 2011 Materials Research Society Spring Meeting, Nice, France, 2011-05-08 - 2011-05-12
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 341392
URI: http://eprints.soton.ac.uk/id/eprint/341392
PURE UUID: 9e9acd84-b5c0-445d-98f7-a35d222144e3
ORCID for B. Mills: ORCID iD orcid.org/0000-0002-1784-1012
ORCID for R.W. Eason: ORCID iD orcid.org/0000-0001-9704-2204

Catalogue record

Date deposited: 23 Jul 2012 14:04
Last modified: 18 Feb 2021 17:08

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Contributors

Author: S.J. Henley
Author: M.J. Beliatis
Author: S.R.P. Silva
Author: B. Mills ORCID iD
Author: R.W. Eason ORCID iD

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