CHARGE TRANSPORT IN DYE-SENSITISED SOLAR CELLS

Blake, David (2007). CHARGE TRANSPORT IN DYE-SENSITISED SOLAR CELLS PhD Thesis, School of Physical Sciences, University of Queensland.

       
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Author Blake, David
Thesis Title CHARGE TRANSPORT IN DYE-SENSITISED SOLAR CELLS
School, Centre or Institute School of Physical Sciences
Institution University of Queensland
Publication date 2007
Thesis type PhD Thesis
Abstract/Summary In this thesis we report a study of the transport dynamics of dye-sensitised solar cells (DSCs). The work is motivated by a desire to better understand the operation of the DSC in order to realise improved power conversion efficiencies. Specifically, we focus on charge transport in these devices and the elements of DSC operation that either assist or impede this transport. We confirm that the transport in the DSC is dispersive under virtually all operating conditions (particularly around the maximum power point). We also describe a new technique for probing transport dynamics - namely transient photocurrent measurements coupled with an adapted equivalent circuit model. This technique has allowed us to calculate for the first time critical parameters such as the equivalent recombination resistance. We have also demonstrated the correspondence between a commonly accepted open circuit photovoltage decay measurement technique and a leading equivalent circuit model. This correspondence validates both our own method and the model from which it extends.

 
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Created: Fri, 21 Nov 2008, 15:26:25 EST