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Solar cells employing metal halide perovskites as light absorbers have undergone a tremendous development over the past years, resulting in photovoltaic devices with record efficiencies exceeding 22%. Commercialization of the technology is coming closer, however there are still some hurdles that need to be overcome. My work focusses on the main challenges of this technology; cost, stability and environmental impact which can be specified in the following topics:
- The synthesis of low-cost and environmentally friendly organic hole transporting materials using condensation chemistry
- The environmental impact of perovskite solar cells; recycling and replacing lead
- Studying the influence of moisture on perovskites and with this knowledge improving the stability against humidity
- Studying charge transporting properties in small-molecules, polymers and covalent organic frameworks using hole-only and conductivity measurements
A Low Cost Azomethine-Based Hole Transporting Material for Perovskite Photovoltaics; M.L. Petrus, T. Bein, T.J. Dingemans, P. Docampo, J. Mater. Chem. A. 2015, 3, 16874.
Recycling perovskite solar cells to avoid lead waste; A. Binek,* M.L. Petrus,* N. Huber, H. Bristow, Y. Hu, T. Bein, P. Docampo, ACS Applied Materials Inter. 2016, 8, 12881.
The Influence of Water Vapor on the Stability and Processing of Hybrid Perovskite Solar Cells Made from Non-Stoichiometric Precursor Mixtures; M.L. Petrus,* Y. Hu,* D. Moia, P. Calado, A. Leguy, P.R.F. Barnes, P. Docampo, ChemSusChem, 2016, 9, 2699.
Directional Charge Carrier Transport in Oriented Benzodithiophene Covalent Organic Framework Thin Films; D.D. Medina,* M.L. Petrus,* A.N. Jumabekov,* J.T. Margraf, S. Weinberger, J.M. Rotter, T. Clark, T. Bein, ACS Nano, 2017 (in press).