Ms. Laura L. Tobin Profile

Laura L. Tobin

at Univ College Dublin

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Author | Career Lab Leader | Leadership Workshop Facilitator

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Publications (2)

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Proceedings Article | 18 May 2010 Paper

Investigating dye-sensitised solar cells

Laura Tobin, Thomas O'Reilly, Dominic Zerulla, John Sheridan

Proceedings Volume 7725, 77251A (2010) https://doi.org/10.1117/12.854591

KEYWORDS: Dye sensitized solar cells, Solar cells, Glasses, Solar energy, Electrodes, Coating, Silicon, Electrons, Manufacturing, Titanium dioxide

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At present there is considerable global concern in relation to environmental issues and future energy supplies, for instance climate change (global warming) and the rapid depletion of fossil fuel resources. This trepidation has initiated a more critical investigation into alternative and renewable sources of power such as geothermal, biomass, hydropower, wind and solar energy. The immense dependence on electrical power in today's society has prompted the manufacturing of devices such as photovoltaic (PV) cells to help alleviate and replace current electrical demands of the power grid. The most popular and commercially available PV cells are silicon solar cells which have to date the greatest efficiencies for PV cells. The drawback however is that the manufacturing of these cells is complex and costly due to the expense and difficulty of producing and processing pure silicon. One relatively inexpensive alternative to silicon PV cells that we are currently studying are dye-sensitised solar cells (DSSC or Grätzel Cells). DSSC are biomimetic solar cells which are based on the process of photosynthesis. The SFI Strategic Research Centre for Solar Energy Conversion is a research cluster based in Ireland formed with the express intention of bringing together industry and academia to produce renewable energy solutions. Our specific research area is in DSSC and their electrical properties. We are currently developing testing equipment for arrays of DSSC and developing optoelectronic models which todescribe the performance and behaviour of DSSCs.

Proceedings Article | 10 October 2009 Paper

Characterising dye-sensitized solar cells

Laura Tobin, Thomas O'Reilly, Dominic Zerulla, John Sheridan

Proceedings Volume 7416, 74161L (2009) https://doi.org/10.1117/12.826221

KEYWORDS: Solar cells, Dye sensitized solar cells, Solar energy, Silicon, Coating, Glasses, Electrodes, Semiconductors, Photovoltaics, Titanium dioxide

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With growing energy and environmental concerns due to fossil fuel depletion and global warming there is an increasing attention being attracted by alternative and/or renewable sources of power such as biomass, hydropower, geothermal, wind and solar energy. In today's society there is a vast and in many cases not fully appreciated dependence on electrical power for everyday life and therefore devices such as PV cells are of enormous importance. The more widely used and commercially available silicon (semiconductor) based cells currently have the greatest efficiencies, however the manufacturing of these cells is complex and costly due to the cost and difficulty of producing and processing pure silicon. One new direction being explored is the development of dye-sensitised solar cells (DSSC). The SFI Strategic Research Centre for Solar Energy Conversion is a new research cluster based in Ireland, formed with the express intention of bringing together industry and academia to produce renewable energy solutions. Our specific area of research is in biomimetic dye sensitised solar cells and their electrical properties. We are currently working to develop test equipment, and optoelectronic models describing the performance and behaviors of dye-sensitised solar cells (Grätzel Cells). In this paper we describe some of the background to our work and also some of our initial experimental results. Based on these results we intend to characterise the opto-electrical properties and bulk characteristics of simple dye-sensitised solar cells and then to proceed to test new cell compositions.

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