Proceedings of Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP20)
DOI: https://doi.org/10.29363/nanoge.iperop.2020.059
Publication date: 14th October 2019
The emerging technology of perovskite solar cells (PSCs) has a revolutionary influence on the research community due to the unprecedent growth rate of its power conversion efficiency (PCE). Despite PSC has a history that shows a seemly promising future, most studies have been focusing on PCE and lifetime optimization instead of verifying the performance governing factor of PSCs. Recently, time-of-flight secondary-ion mass spectrometry (ToF-SIMS) has been utilized for getting insights into the perovskite material due to its extremely high detection limit and its ability of detecting molecular component signals. These features have made ToF-SIMS a powerful tool in uncovering the fundamental property of the perovskite film, which is crucial for turning PSCs into a transformative technology. Unfortunately, very few have been aware that the probing beam must be carefully chosen during ToF-SIMS analysis otherwise misleading artifacts will appear [1],[2].
During this presentation, the origin of depth profile artifacts induced by the most commonly used sputter beams, O2+ and Ar-gas cluster ion beam (Ar-GCIB), will be discussed. These artifacts, although often ignored, could be widely observed in the perovskite depth profiles. We demonstrated an approach to eliminate depth profile artifacts by replacing O2+/Ar-GCIB with either C60+ or Ar+ sputtering. Based on this finding, we were able to reveal the true component distribution of PSCs and identified the performance governing factor. We verified that different manufacturing procedures could result in different component distributions of the perovskite film, which would greatly influence the PCE and J-V response of the device. As for stability issues, we confirmed that the major compositional difference between a fresh and an aged PCS was resulted from iodide diffusion. These results provided evidences that could support and facilitate the development of a more efficient and stable PSC.
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.