Proceedings of Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP20)
DOI: https://doi.org/10.29363/nanoge.iperop.2020.058
Publication date: 14th October 2019
The Organometal halide perovskite solar cells (PSCs) have been dramatically researched and developed in the power conversion efficiency (PCE) certified over 24% [1] which is comparable to other solid state solar cells as crystalline silicon, CIGS, CdTe, etc. The modification of the components of perovskite is one of the key word for the refinement of quality and morphology of crystal and layer with increasing the abundance of photoactive phase such as tetragonal, cubic, trigonal, and decreasing the surface roughness and void in the layer, especially, with A-site cation in perovskite structure ABX3 [2]. In this talk, we report the potassium cation doping effect to perovskite absorber about properties of the expanded crystal lattice constant, red-shifted light absorption, up shifted conduction and valance band position, disappeared grain boundary in film, diminished hysteresis in photovoltaic I-V curve with over 20% PCE [3,4], furthermore, we have reached new composition as MA-Free system with over 21% PCE. The scaling up the photo active area with small less of FF without drop of Voc from single cells was maintained by development of device fabrication process point of view. Recently, the PCE was reached near 21% by 1 cm2 and 2.76 cm2 with less hysteresis based on the better flatness and less impurity of perovskite film by optimizing the process.
References
[1] Martin A. Green, et al. Prog Photovolt Res Appl. 27, 565–575 (2019).
[2] Saliba, M., Grätzel, M., et al. Science, 354, 206–209 (2016).
[3] Z. Tang, T. Bessho, H. Segawa, et al. Sci. Rep., 7, 12183 (2017).
[4] Z. Tang, S. Uchida, T. Bessho, H. Segawa et al. Nano Energy, 45, 184–192, (2018).
The authors thank the New Energy and Industrial Technology Development Organization (NEDO, Japan) for their financial supports.
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.