Proceedings of 6th International Conference on Hybrid and Organic Photovoltaics (HOPV14)
Publication date: 1st March 2014
Carbon nanostructures ([60]fullerene, carbon nanotubes, graphene) can undergo chemical functionalization with different electro-active systems in a covalent or non-covalent way to enhance solubility in various solvents and to produce novel hybrid materials potentially suitable for applications. These architectures composed of arrays of photoactive moieties ordered in a suitable disposition are of interest because upon selective light excitation of a given chromophore they can undergo directional multi-step electron and/or energy transfer processes similar to the photosynthetic process. On the other hand, the synthesis of novel electron acceptors with controlled molecular electronic structures and solid-state supramolecular structures is urgently required for generating high photovoltaic performances. Commonly, a derivative of fullerene such as 6,6-phenyl-C61-butyric acid methylester (PCBM) is used as an electron acceptor material, along with an electron donor material to form the active layer in bulk heterojunction devices.[1] However, PCBM suffers disadvantages that include high material production cost and poor absorption in the visible spectrum. Therefore, there is a need for an electron acceptor material that absorbs photons in the visible region.
Perylenediimides (PDIs) have demonstrated exceptional photochemical stability, strong absorption of visible light, and high fluorescence quantum yields. [2] Due to these features, and also to their capability to form crystalline domains with high electron mobilities, PDI derivatives are good candidates to link with carbon nanostructures, as artificial photosynthetic systems and components for organic photovoltaics. Herein, I will report our more recent results related with the synthesis of different perylenediimides [3] and carbon nanostructure-perylenediimide arrays (Figure 1) [4] focussing mainly in the photoinduced electron transfer properties and in their application as PCBM replacements in organic photovoltaics.
Figure 1. Structures of the PDI and PDI-carbon nanostructures synthetized
[1] Kim, J.Y.; Lee, K.; Coates, N.E.; Moses, D.; Nguyen, T.; Dante, M.; Heeger, A.J. Science 2007, 317, 222-225. [2] Zhan, X.; Facchetti, A.; Barlow, S.; Marks, T. J.; Ratner, M. A.; Wasielewski, M. R.; Marder, S. R. Adv. Mater. 2011, 23, 268-284. [3] (a) Ramírez M.G.; Pla, S.; Boj P.G.; Villalvilla, J.M.; Quintana, J.A.; Díaz-García, M. A.; Fernández-Lázaro, F.; Sastre-Santos Á. Adv. Opt. Mater. 2013, 1, 933–938. (b) Guide, M.; Pla, S.; Sharenko, A.; Zalar, P.; Fernández-Lázaro, F.; Sastre-Santos, Á.; Nguyen, T.-Q. Phys. Chem. Chem. Phys. 2013, 15, 18894-18899. [4](a) Martín, R.; Céspedes-Guirao, F. J.; de Miguel, M.; Fernández-Lázaro, F.; García H.; Sastre-Santos, A. Chem. Sci. 2012, 3, 470. (b) Pla, S.; Martín-Gomis, L.; Ohkubo, K.; Fukuzumi, S.; Fernández-Lázaro, F; Sastre-Santos, Á. Asian J. Org. Chem. 2014, DOI: 10.1002/ajoc.201300235.
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.