Publication date: 1st July 2014
Perovskite is a promising light harvester for use in photovoltaic solar cells. In recent years, the power conversion efficiency of perovskite solar cells has been dramatically increased, making them a competitive source of renewable energy.
This work will discuss several topics related to perovskite based solar cells:
• An in-depth study on two-step deposition, separating the perovskite deposition into two precursors. The effects of spin velocity, annealing temperature, dipping time and methylammonium iodide concentration on the photovoltaic performance are studied.
• Various concentrations of methylammonium iodide and methylammonium bromide are studied in hole conductor free perovskite solar cells, which reveal that any composition of the hybrid CH3NH3PbInBr3−n can conduct holes.
• Kelvin probe force microscopy is used to measure cross-sections of hole conductor free CH3NH3PbI3 perovskite solar cells. The work function change are measured at the interfaces between the CH3NH3PbI3 perovskites and a metal oxide, nanocrystalline TiO2 and Al2O3, respectively. The findings from this research are critical for the understanding and further improvement of perovskite based solar cells, and are valid for cells with a hole transport material.
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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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