Proceedings of International Conference Asia-Pacific Hybrid and Organic Photovoltaics (AP-HOPV17)
Publication date: 7th November 2016
Perovskite solar cells (PSCs) are one of most promising next generation solar cells due to their high conversion efficiency, low materials cost, and ease for production. After the conversion efficiency has achieved over 20%, interests of researchers gradually spread across lead-free materials, flexible device, and high durability of performance. Among them, technology to minimize the production cost is a major issue for industrialization. We have focused on a low temperature fabrication of PSC, which allows use of plastic substrates for development of flexible and low cost devices. For low temperature fabrication process, organic carrier transporting materials are generally useful. However, inorganic materials are superior in chemical stability if materials of thin compact film can be prepared by low temperature method. As a candidate of such materials, amorphous metal oxide semiconductors are promising because of their high stability and low material's cost. We employed amorphous Nb-doped TiO2 [TiO2(Nb)] as a compact layer (CL) material and combined it with binder-free Brookite TiO2 nano-particles to prepare mesoscopic TiO2 substrate. Based on the substrate, we fabricated formamidinium (FA) and methylammonium (MA) mixed perovskite [(FAPbI3)0.85(MAPbBr3)0.15] solar cells. PSCs fabricated below 100°C and 150 °C successfully achieved conversion efficiencies of up to 15% and over 17%, respectively. Additionally, the amorphous TiO2(Nb) based device showed less hysteretic behavior in J–V curve compared to high temperature (550 °C) sintered crystalline non-doped TiO2 CL based device.
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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.