Proceedings of 6th International Conference on Hybrid and Organic Photovoltaics (HOPV14)
Publication date: 1st March 2014
Hybrid lead halide perovskite based solar cells have recently gained enormous interest in the photovoltaics research community due to their outstanding performance and facile fabrication methods. Recent reports have commented on the variability in device performance as a function of perovskite layer fabrication. However, no correlation has been made between the fabrication method and the various photo physical properties associated with the device. Therefore, understanding the correlation between the fabrication methods of the CH3NH3PbI3 layer, and their consequent precise chemical composition, optical band gap, and charge transport properties is crucial for further device optimization. In this work, we study the effect of the preparatory method of the perovskite layer to the device performance, from 1 step method [1] to 2 step method [2] with different crystal growth time. Ultimately, this work unravels unexpected photovoltaic trends which illustrate the surprising key features necessary to yield high efficiency perovskite based solar cells.
[1] Kim, H-S.; Lee, C-R.; Im, J-H., Lee, K-B., Moehl, T.; Machioro, A.; Moon, S-J., Humphry-Baker, R.; Yum, J-H., Moser, J.; Gratzel, M.; Park, N-G. Lead Iodide Perovskite Sensitized All-Solid-State Submicron Thin Film Mesoscopic Solar Cell with Efficiency Exceeding 9%. Scientific Reports 2012, 2, 591. [2] Burschka, J.; Pellet, N.; Moon, S-J.; Humphry-Baker, R.; Gao, P.; Nazeeruddin, M.; Gratzel, M. Sequential deposition as a route to high-performance perovskite-sensitized solar cells. Nature 2013, 499, 316–319.
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International Conference on Hybrid and Organic Photovoltaics
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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