Proceedings of International Conference on Perovskite and Organic Photovoltaics and Optoelectronics (IPEROP19)
DOI: https://doi.org/10.29363/nanoge.iperop.2019.027
Publication date: 23rd October 2018
The remarkable performance of perovskite solar cells (> 20%) is hindered by the fact that this material present dynamic optical and electrical responses, which can lead to degradation. Specifically, identifying and controlling the effect of water, oxygen, temperature, bias, and light on their physical behavior is a pressing topic of research. To unfold the contribution of each intrinsic and extrinsic parameter on materials’ properties and devices’ performance, we combine advanced scanning probe methods based on photoluminesce (PL) microscopy and atomic force microscopy (AFM). We investigate a series of hybrid perovskites, including MAPbI3, MAPbBr3, CsxFA1−xPb(IyBr1−y)3 , and triple cation Cs-mixed. Through environmental PL microscopy we identify a humidity-induced PL hysteresis that strongly depends on the Cs/Br ratio [1]. Using fast Kelvin-probe force microscopy we quantify a dynamic open-circuit voltage (Voc) response as a function of perovskite chemical composition and illumination treatment, as will be discussed in details during the presentation [2,3]. The individual and collective effects of the five abovementioned parameters on perovskites ability to recover are further investigated using a machine learning (ML) approach. Our functional imaging platform [4,5], combined with ML, can be expanded to test the stability of emerging perovskites, including Pb-free options, and novel perovskites for multijunction 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.
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.
The International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics (NIPHO) is the best place to hear the latest developments in perovskite solar cells as well as on recent advances in the fields of perovskite light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.