Proceedings of International Conference Asia-Pacific Hybrid and Organic Photovoltaics (AP-HOPV17)
Publication date: 7th November 2016
One of the most important factors leading to the rapid advancement of perovskite solar cells is the ability to manipulate the microstructure of the perovskite layer and the adjacent functional layers within the device. Through the manipulation of the solution concentration and degree of supersaturation, it is possible to control the size and morphology of perovskite grains. A non-classical growth mechanism was found in solution-processed thin films containing large perovskite grains. This serves as a useful framework for the design of future perovskite morphologies.
Planar and mesoscopic perovskite architectures were characterized to assess the effect of the perovskite morphology on the charge transport and recombination dynamics. It was found that the large perovskite grains in the planar structure exhibited longer radiative recombination lifetimes as well as faster charge mobilities. But the mesoporous scaffold is more effective at suppressing recombination across the FTO/c-TiO2/perovskite interfaces.
Through proper control of the electron dose and the exposure time in transmission electron microscopy study we have been able to provide direct and unequivocal evidence for the existence and crystallography of twin domains in tetragonal CH3NH3PbI3 thin films. The twin domains range from ~100-300 nm in width and have a twin boundary parallel to {112}. The absence/presence of the twin domains is reversible when cycling through the cubic/tetragonal phase transition.
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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.