Proceedings of nanoGe Fall Meeting19 (NFM19)
Publication date: 18th July 2019
Hybrid organic-inorganic perovskite solar cells attract much attention because their power conversion efficiency reached very high values (above 24%) in a few years. However, the best values still lag below the theoretical limit and one important reason to that is a non-optimal Voc. According to Shockley and Queisser’s detailed balance, Voc reaches its maximal so-called radiative value Voc,rad if the cell re-emits all the light it absorbs, i.e. if its fluorescence quantum yield QY reaches 100%. Whereas perovskite films have been shown to present high QYs with values up to 43% [1], much lower QYs of a few % have been reported for complete perovskite solar cells [2,3]. Although several phenomena such as non-radiative recombination and parasitic absorption have been proposed to account for these low values, their contribution in actual devices remains to be quantified. Another open question is whether such devices present an ideal behaviour as the one predicted by Shockley and Queisser. To address these points, we will show the results of our recent work in which we measured the QY and photovoltaic properties of complete perovskite solar cells, and analysed the data using an optical model that enables a rigorous calculation of Voc,rad and the quantification of parasitic absorption in a realistic device structure.
nanoGe is a prestigious brand of successful science conferences that are developed along the year in different areas of the world since 2009. Our worldwide conferences cover cutting-edge materials topics like perovskite solar cells, photovoltaics, optoelectronics, solar fuel conversion, surface science, catalysis and two-dimensional materials, among many others.
Previously nanoGe Spring Meeting (NSM) and nanoGe Fall Meeting (NFM), MATSUS is a multiple symposia conference focused on a broad set of topics of advanced materials preparation, their fundamental properties, and their applications, in fields such as renewable energy, photovoltaics, lighting, semiconductor quantum dots, 2-D materials synthesis, charge carriers dynamics, microscopy and spectroscopy semiconductors fundamentals, etc.
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.