Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV19)
Publication date: 6th February 2020
Herein, we report the synthesis of a yellow dye. The molecule, which we denote YD, consists of a donor-p-acceptor (triarylamine-vinyl-benzyl) arrangement and it was obtained through Heck coupling reaction in a good overall yield. The molecular structure was confirmed by 1H, 13C, DEPT135 and HSQC NMR techniques and mass spectrometry. The use of J-resolved spectroscopy was a method to unambiguously identify the E isomer in the structure. The optical properties were investigated using UV-Vis absorption and fluorescence spectroscopy. The influence of organic solvents with diverse polarities on the optical characterization has been studied. A hypsochromic shift was observed when passing from chloroform to methanol, as a result of the increase in the polarity. The YD molecule exhibits an absorption peak in the region of 290-430 nm. The fluorescence maximum is in the region of 480-500 nm. The emission spectra show that the molecule has relatively large Stokes shifts of around 70-100 nm suggesting changes in geometrical configuration of the molecule upon excitation. A further investigation on the yellow dye is being continued in our laboratory mainly focused on the application of the material in solar cell devices. We are confident that this will lead to an improvement in the device efficiency and a key approach to achieve this is through the co-sensitization.
We gratefully acknowledge funding from EPSRC for DMR and RA (EP/P030068/1) and Swansea University EPSRC National Mass Spectrometry Service Centre.
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.