Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18)
Publication date: 21st February 2018
Side-chain engineering is an important strategy for optimizing photovoltaic properties of organic photovoltaic materials, the type, size, topology, and distribution of side chains have a great impact on the photovoltaic parameters of the corresponding organic solar cells (OSCs)[1-3]. It has been demonstrated that introducing an tri-n-propylsilyl side chain in a benzodithiophene-alt-fluorobenzotriazole (BDT-alt-FBTA) based polymer J71, effectively down-shifted the HOMO energy level, increased the absorption coefficient, and enhanced hole mobility of the corresponding polymer, leading to excellent photovoltaic properties for a blend with the non-fullerene acceptors ITIC and m-ITIC[4,5]. Here we designed and synthesized a new polymer donor J75 which with branched alkylsilyl side chains, and studied the photovoltaic properties by fabricating OSCs with the polymer as donor and ITIC as acceptor. It was found the OSCs based on J75:ITIC can achieve a power conversion efficiency (PCE) of 10.40% with a high open-circuit voltage (Voc) of 0.98 V, a short-circuit current density (Jsc) of 16.40 mA cm−2 and a fill factor (FF) of 65% without any extra treatment.
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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.
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