Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV16)
Publication date: 28th March 2016
Organometallic perovskite has been attracting much attention as a low-cost material for highly efficient photovoltaics. The power conversion efficiency (PCE) of perovskite solar cells (PSCs) has surpassed all solution-processed thin-film solar cells, and reached 21% in only 6 years of research. In PSCs, the perovskite layer is responsible for light absorption and charge transportation. The quality of the perovskite layer is very important to achieve highly efficient PSCs. Larger perovskite crystals would lead to less barriers and defects in the perovskite layer and thus less recombination and lower series resistance.
In this work, we in-situ monitored the phase transformation of perovskite layer during annealing, and demonstrated that the excess organic and halide ion largely improved the crystallinity of perovskite layer.[1] Based on the results, we propose a vapor-assisted high-temperature (VAHT) method to form high quality pinhole-free perovskite layers. In perovskite layers fabricated by traditional two-step processes, the crystal size are usually small, about 500 nm.[2,3] Using the proposed VAHT method, the crystal size reached 50 µm. The crystal-growth mechanism will be explained, and photovoltaic applications of the high quality pinhole-free perovskite layer will also be discussed in the presentation.
[1] T. Ma, et al, J. Mater. Chem. A, 2015, 3, 14195-14201.
[2] Q. Chen, et al, J. Am. Chem. Soc., 2014, 136, 622−625.
[3] Z. Xiao, et al, Energy Environ. Sci., 2014, 7, 2619–2623.
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.