Proceedings of nanoGe Fall Meeting 2021 (NFM21)
DOI: https://doi.org/10.29363/nanoge.nfm.2021.099
Publication date: 23rd September 2021
With the emergence of indoor photovoltaics as a possible application for organic solar cells, new design criteria are developed to facilitate optimum performance under indoor light sources such as light emitting diodes and low light intensities.[1] For instance, a high parallel resistance is more relevant than under 1 sun illumination. Such a high parallel resistance is typically realized by a thick absorber layer to avoid leakage currents.[2] However, organic solar cells with thick active layers are often limited in their performance by space-charge effects caused by doping, asymmetric carrier mobilities or charged trap states.[3, 4] The latter effect is not well understood yet even though shallow defects are commonly found in organic solar cells due to their intrinsic energetic disorder. Thus, we present a theoretical analysis of the influence of photo-induced space charge evoked by energetic disorder on the performance of organic solar cells under indoor conditions.[5] Drift-diffusion simulations enable us to watch space charge build up in shallow defects with increasing light intensity. Also, we observe that the performance of organic solar cells is less sensitive to high levels of energetic disorder under low light operation than under solar irradiation since the density of space charge increases with light intensity. As a consequence, experimentalists should not quickly discard material systems that perform badly under standard test conditions due to energetic disorder as they still could be viable candidates for indoor application.
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.