Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV19)
Publication date: 6th February 2020
Organic photovoltaics (OPVs) have emerged as an alternative energy conversion electronics to inorganic electronics due to their lower cost of production, easy processing, light-weight, and flexibility. Bulk heterojunction (BHJ) solar cell is one device architecture of OPVs where a lot of efforts have been made in tuning molecular designs for both organic semiconductor donor and acceptor materials to achieve high power conversion efficiency. Naphthothiadiazole core flanked with furan and thiophene small molecules, F-NT-F and T-NT-T respectively, were designed and synthesized for high performance solution-processed BHJ solar cell. This study explores the photovoltaic properties of the small molecules (F-NT-F and T-NT-T) as a donor with a fullerene derivative as an acceptor. The donor small molecules were successfully synthesized, and their optical and electrochemical properties were investigated by UV-Visible spectroscopy, fluorescence spectrometry, and cyclic voltammetry. Both compounds showed broad absorption, but T-NT-T showed extended absorption to about 800 nm. The BHJ solar cells were fabricated using device configuration of ITO/PEDOT:PSS/photoactive layer/BCP/Al. The photoactive layer was optimized by varying the donor to acceptor ratio and using diiodo-octane (DIO) as solvent additives. The small molecules showed promising application in organic photovoltaics.
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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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