Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV16)
Publication date: 28th March 2016
In recent times, there have been several reports of dye-sensitized solar cell (DSC) device efficiencies over 12% leading last year to the highest efficiencies for a liquid DSC device of 14.7% for a device co-sensitized using two dyes with two different types of linker; one a carboxylate and the other a silyl ether linker [1]. By comparison, solid state DSC (ss-DSC) devices have reached 8% using a new Cu-complex based hole transport material [2].
Whilst DSC devices can be manufactured using non-toxic and earth abundant sub-components, this paper addresses two key issues which remain for DSC technology:-
Firstly, the need to improve DSC device efficiencies whilst maintaining control during rapid processing. In this paper, we will report our studies into dye sorption using self-assembly techniques and also into dye uptake rates whilst increasing device sizes towards module scale [3,4].
Secondly, we will report our recent studies to develop better understanding of DSC degradation mechanisms. We will also explore potential routes to enhance device lifetimes.
We have studied both device processing and lifetime issues using digital imaging and analysis techniques and compared these with I-V device testing data and forensic analysis techniques.
References
(1) K. Kakiage, Y. Aoyama, T. Yano, K. Oya, J. Fujisawa, M. Hanaya, Chem. Commun., 2015, 51, 15894.
(2) C.M. Freitag, Q. Daniel, M. Pazoki, K. Sveinbjörnsson, J. Zhang, L. Sun, A. Hagfeldt, G. Boschloo, Energy Environ. Sci., 2015, 8, 2634.
(3) P.J. Holliman, A. Connell, E.W. Jones, S. Ghosh, L. Furnell, R.J. Hobbs, M.L. Davies, Materials Research Innovations, 2015, 19, 494.
(4) A. Connell, P.J. Holliman, E.W. Jones, L. Furnell, C. Kershaw, M.L. Davies, C.D. Gwenin, M.B. Pitak, S.J. Coles, G. Cooke, J. Mater. Chem., 2015, 3, 2883.
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International Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.
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