Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18)
Publication date: 21st February 2018
P-type dye sensitized solar cells has been intensively investigated due to its potential application in tandem solar cells and solar fuel devices [1,2,3]. The efficiency of p-type DSC is limited by all the unsatisfying photovoltaic parameters, photocurrent, photovoltage and fill factor. Molecular engineering is an effective strategy to improve the photocurrent of p-type DSCs [4, 5]. In order to increase the photovoltage of this kind of device, new materials including p-type semiconductors with more positive Fermi Level or redox mediators with more negative redox potentials are required. The fundamental concept proposed in our previous work is to investigate the potential of solid state p-type DSCs based on mesoporous NiO with an electron transport material as mediator undertaking the electron transport between two electrodes [6]. Recently, we have fabricated a dye sensitized NiO-Dye-TiO2 core-shell photocathode[7], in which the charge separation and dye regeneration are proceeded within 500 fs. We also proved that this dye sensitized core-shell photocathode can be made into real solar cells [8]. This core-shell photocathode also shows potential application in dye sensitized solar fuel devices.
Reference:
[1] H. Tian. ChemSusChem, 2015, 8, 3745
[2] J. He, H. Lindstroem, A. Hagfeldt, S.-E. Lindquist, J. Phys. Chem. B, 1999, 103, 8940.
[3] E. A. Gibson, A. L. Smeigh, L. Le Pleux, et al., Angew. Chem. Int. Ed., 2009, 48, 4402.
[4] H. Tian, J. Oscarsson, E. Gabrielsson, et al, Sci. Rep., 2014, 4, 4282
[5] E. Sheibani, L. Zhang, P. Liu, et al., RSC Adv., 2016, 6, 18165.
[6] L. Zhang, G. Boschloo, L. Hammarstrom, H. Tian, Phys. Chem. Chem. Phys., 2016, 18, 5080
[7] L. Tian, J. Föhlinger, P. B. Palas, et al. Phys. Chem. Chem. Phys., 2018, 20, 36-40
[8] L. Tian, J. Föhlinger, B. Zhang, et la., Manuscript.
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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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