Scanning photocurrent microscopy of 3D printed light trapping structures in dye-sensitized solar cells

Converting solar energy directly into electricity as a clean and renewable energy resource is immensely important to solving the energy crisis and environmental pollution problems induced by the consumption of fossil fuels. Dye-sensitized solar cells (DSSCs) provide a technically and economically cr...

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Main Authors: Knott, Andrew N., Makarovsky, Oleg, O’Shea, Paul, Tuck, Christopher, Wu, Yupeng
Format: Article
Published: Elsevier 2018
Online Access:https://eprints.nottingham.ac.uk/50514/
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author Knott, Andrew N.
Makarovsky, Oleg
O’Shea, Paul
Tuck, Christopher
Wu, Yupeng
author_facet Knott, Andrew N.
Makarovsky, Oleg
O’Shea, Paul
Tuck, Christopher
Wu, Yupeng
author_sort Knott, Andrew N.
building Nottingham Research Data Repository
collection Online Access
description Converting solar energy directly into electricity as a clean and renewable energy resource is immensely important to solving the energy crisis and environmental pollution problems induced by the consumption of fossil fuels. Dye-sensitized solar cells (DSSCs) provide a technically and economically credible alternative that could challenge the dominance of conventional p-n junction photovoltaic devices in the solar energy market. DSSCs use dye molecules adsorbed at the surface of nanocrystalline oxide semiconductors such as TiO2 to collect sunlight. These thin films require a large surface area, to adsorb many dye molecules, and mesoporous channels so the electrolyte can permeate the film and regenerate the dye molecules. This favourable morphology is traditionally achieved by the random assembly of a network of nanoparticles by the sintering process. Two-photon polymerization is a 3D printing technique used to fabricate structures with feature resolutions down to 100 nm. We use this technique to fabricate TiO¬2 thin films of optimised 3D micro-design for use in DSSCs. Our films have a considerable advantage over the conventional (random assembly) films as it allows the implementation of light scattering designs which are shown to significantly enhance photocurrent in the cell by up to ~25%.
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spelling nottingham-505142020-05-04T19:40:48Z https://eprints.nottingham.ac.uk/50514/ Scanning photocurrent microscopy of 3D printed light trapping structures in dye-sensitized solar cells Knott, Andrew N. Makarovsky, Oleg O’Shea, Paul Tuck, Christopher Wu, Yupeng Converting solar energy directly into electricity as a clean and renewable energy resource is immensely important to solving the energy crisis and environmental pollution problems induced by the consumption of fossil fuels. Dye-sensitized solar cells (DSSCs) provide a technically and economically credible alternative that could challenge the dominance of conventional p-n junction photovoltaic devices in the solar energy market. DSSCs use dye molecules adsorbed at the surface of nanocrystalline oxide semiconductors such as TiO2 to collect sunlight. These thin films require a large surface area, to adsorb many dye molecules, and mesoporous channels so the electrolyte can permeate the film and regenerate the dye molecules. This favourable morphology is traditionally achieved by the random assembly of a network of nanoparticles by the sintering process. Two-photon polymerization is a 3D printing technique used to fabricate structures with feature resolutions down to 100 nm. We use this technique to fabricate TiO¬2 thin films of optimised 3D micro-design for use in DSSCs. Our films have a considerable advantage over the conventional (random assembly) films as it allows the implementation of light scattering designs which are shown to significantly enhance photocurrent in the cell by up to ~25%. Elsevier 2018-06-15 Article PeerReviewed Knott, Andrew N., Makarovsky, Oleg, O’Shea, Paul, Tuck, Christopher and Wu, Yupeng (2018) Scanning photocurrent microscopy of 3D printed light trapping structures in dye-sensitized solar cells. Solar Energy Materials and Solar Cells, 180 . pp. 103-109. ISSN 1879-3398 https://www.sciencedirect.com/science/article/pii/S0927024818300886 doi:10.1016/j.solmat.2018.02.028 doi:10.1016/j.solmat.2018.02.028
spellingShingle Knott, Andrew N.
Makarovsky, Oleg
O’Shea, Paul
Tuck, Christopher
Wu, Yupeng
Scanning photocurrent microscopy of 3D printed light trapping structures in dye-sensitized solar cells
title Scanning photocurrent microscopy of 3D printed light trapping structures in dye-sensitized solar cells
title_full Scanning photocurrent microscopy of 3D printed light trapping structures in dye-sensitized solar cells
title_fullStr Scanning photocurrent microscopy of 3D printed light trapping structures in dye-sensitized solar cells
title_full_unstemmed Scanning photocurrent microscopy of 3D printed light trapping structures in dye-sensitized solar cells
title_short Scanning photocurrent microscopy of 3D printed light trapping structures in dye-sensitized solar cells
title_sort scanning photocurrent microscopy of 3d printed light trapping structures in dye-sensitized solar cells
url https://eprints.nottingham.ac.uk/50514/
https://eprints.nottingham.ac.uk/50514/
https://eprints.nottingham.ac.uk/50514/