Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18)
DOI: https://doi.org/10.29363/nanoge.hopv.2018.156
Publication date: 21st February 2018
PbS colloidal quantum dots (CQDs) have broad and strong light absorption spectrum covering the ultraviolent-visible-near infrared region, allowing use of very thin CQD solid films for CQD solar cells with high power conversion efficiency (PCE). Lightweight, flexible and semitransparent solar cells are very interesting for applications for example in spacecraft, aircraft and personal pack load. We have prepared an ultra-flexible and lightweight CQD solar cell constructed with a solution-processed Ag nanowire network with good mechanical properties as the front transparent and conductive electrode on a polyethylene naphthalate substrate with a thickness of only 1.3 µm. The thickness of the full CQD solar cell is less than 2 µm, and ~10 % PCE with a weight of 6.5 g m-2 is achieved. The flexible solar cell shows good mechanical properties that maintains high level photovoltaic performance under extreme deformation and highly durable repeated compression-stretching deformation. We have also prepared semitransparent CQD solar cells with a combination of high light transmission and high solar cell efficiency, which also can be interesting in many applications, for example windows in buildings. In the presentation we also show how the surface defects of the CQDs can be minimized using different surface shells of the CQDs, yielding highly efficient solar cells.
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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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The main topics of the Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP) are discussed every year in Asia-Pacific for gathering the recent advances in the fields of material preparation, modeling and fabrication of perovskite and hybrid and organic materials. Photovoltaic devices are analyzed from fundamental physics and materials properties to a broad set of applications. The conference also covers the developments of perovskite optoelectronics, including light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.
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