Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV22)
DOI: https://doi.org/10.29363/nanoge.hopv.2022.191
Publication date: 20th April 2022
In a molecular photovoltaic device, charge separation and energy conversion result from the evolution of a photogenerated exciton into a charge separated state, in competition with recombination to ground. Recently, new molecular materials have led to steady increases in power conversion efficiency that now appoach 20%. To make further advances, we need to understand and isolate the effects of chemical structure, molecular packing, energetics and disorder on the competition between charge separation and recombination and hence on device efficiency. Electro- and photo-luminescence have proved to be valuable tools to probe the energy and dynamics of excited states involved in photoinduced charge separation, and to study structural and energetic disorder at molecular interfaces. The combination luminescence with other spectroscopic techniques, transient electrical measurements and computational modelling can be effective in helping us to understand how chemical and physical structure control the basic mechanisms of a photovoltaic device. Such an approach can be used to study the properties and role of charge transfer states, and the impact of structural and energetic disorder. We show how an integrated computational model allows different experimental measurements to be reconciled within a single picture and helps to show how the properties of interfacial states control the device [1]. We use our results to consider the ultimate limitations placed on solar to electric conversion by the molecular nature of the materials.
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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.
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
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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