Proceedings of International Conference Asia-Pacific Hybrid and Organic Photovoltaics (AP-HOPV17)
Publication date: 7th November 2016
In the past few years, we have all witnessed the unprecedented zeal for the rapid growth of the organometal halide perovskite solar cell field. The tremendous efforts devoted to device fabrication and optimization have led to PCEs exceeding 20%. In spite of such an impressive development, an in-depth understanding of many of the physical properties of this class of eclectic materials remain elusive, including the energetic distribution of trap states, the dynamics of charge transport/recombination and light harvesting efficiency in the assembled planar solar cells. The underlying mechanism of the carrier transport/recombination processes are systematically studied by optoelectronic transient measurements. The transient photocurrent (TPC) and photovoltage (TPV)measurements are frequently used to elucidate the mechanism of photoelectrical conversion processes and evaluate charge transport/recombination lifetime in the planar perovskite solar cells. The photovoltaic performance of planar perovskite solar cell is significantly influenced by the morphology of perovskite film. We found that best morphology of perovskite film prepared from the moderate concentration of CH3NH3Cl in precursor solutions results the excellent photovoltaic performance with an average efficiency of 15.52% and a champion efficiency of 16.38%. The results of transient optoelectronic measurements, TPV and TPC, indicate that the morphology of perovskite film strongly influences the charge recombination and transport processes in planar perovskite solar cells, as proved by the derived charge collection efficiency. The cell with the best perovskite film exhibits slowest recombination and fastest transport dynamics. In addition, it is found that improper CH3NH3Cl may bring about more trap states. Density-of-state distribution is investigated by means of time-resolved charge extraction (TRCE). For TRCE measurements, photogenerated electrons under a given photovoltage are dumped out at specified timing by rapidly switching the solar cells from open- to short-circuit conditions. In a word, the preparation of high-quality perovskite film with controllable morphologies via chloride to optimize charge recombination and charge transport is significant for fabricating high-performance perovskite solar cells.
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.