Publication date: 1st July 2014
A novel type of thin film photovoltaic device, known as perovskite solar cell, has entered the field during the last 2 years based on a solution-processable layered semiconductor as the absorber, which combines a range of unique properties such as large optical absorption cross section, low exciton binding energy and high crystallinity. Quite notably, this absorber was successfully incorporated in different solar cell configurations (sensitized solar cells, mesosuperstructured solar cells, planar heterojunction solar cells and hole conductor-free solar cells) providing maximum overall power conversion efficiencies ranging from around 11% up to more than 17.0% under 1 sun AM1.5G solar illumination [1]. However, to make a big step towards commercialization, improved efficiencies of more than 20% (surpassing those of CIGS cells), accompanied with stability performance and absence of non-toxic elements (such as lead), should be attained. To this end, we here present some novel concepts for highly efficient perovskite solar cells employing either lead-free perovskites or by judicious engineering of the perovskite/electron acceptor interface.
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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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