Proceedings of International Conference Asia-Pacific Hybrid and Organic Photovoltaics (AP-HOPV17)
Publication date: 7th November 2016
In a span of four years, organic−inorganic lead halide based Perovskite Solar Cells have exceeded solar conversion efficiencies of 22%. Despite the promising progress in improving the efficiency of CH3NH3PbI3 solar cells, long-term stability is one of the key issues that must be addressed before any market viability of perovskite solar cells could be suggested. The perovskite family offers rich multitudes of crystal structures and substituents with the potential to uncover new and exciting photophysical phenomena that hold the promise of high stability and high efficiency solar cells.
One of the first work in mixed-dimensionality perovskite, a mixture of layered (2D) and 3D perovskites was reported in the form of (PEA)2(MA)2[Pb3I10], (with PEA = C6H5(CH2)2NH3+ and MA = CH3NH3+) [1]. This material displayed a 2D and 3D mixed perovskite structure with promising efficiency, and stability against moisture. We have recently pursued a similar approach where mixed dimensionality perovskites were formed as (MA)n-1(EAI)2PbnX3n+1, with EAI = CH3CH2NH3I [2], where tunability of bandgaps and improved stability was brought about. Yet another approach of formation of bilayers (in nanoparticles) was also demonstrated by our team recently where a 2D layered perovskite (OA)2PbBr4 was formed on top of MAPbBr3 perovskite, OA =CH3(CH2)7NH3 [3]. These examples establish the viability of using 2D-3D mixed dimensionality or multidimensionality perovskites for both bandgap tunability and stability.
This presentation will outline a broad palette of elemental substitutions, and multidimensional families [4] that will provide the next step towards the advances of the perovskite solar cells and light-emitting devices. I will also focus on the novel charge dynamics in the low and multi-dimensional perovskite system. Challenges and opportunities in perovskite materials beyond methyl ammonium lead iodide [4], with particular emphasis on their optoelectronic properties and integration into solar cells and light-emitting devices [5], will also be addressed.
References
[1] I.C. Smith, E.T. Hoke, D. Solis-Ibarra, et al. “A Layered Hybrid Perovskite Solar-Cell Absorber with Enhanced Moisture Stability”, Angew. Chem. Int. Ed., 2014, 53(42), 11232-11235.
[2] T.M. Koh, V. Shanmugam, J. Schlipf et al. “Nanostructuring Mixed-Dimensional Perovskites: A Route Toward Tunable, Efficient Photovoltaics”, Adv. Mater., 2016, 28(19), 3653-3661.
[3] S Bhaumik, SA Veldhuis, YF Ng, MJ Li, SK Muduli, TC Sum, B Damodaran, SG Mhaisalkar, N Mathews, Highly stable, luminescent core-shell type methylammonium-octylammonium lead bromide layered perovskite nanoparticles, Chem Comm, 52(44): 7118-7121, 2016
[4] P.P. Boix, S. Agarwala, T.M. Koh, N. Mathews, S.G. Mhaisalkar. “Perovskite Solar Cells: Beyond Methylammonium Lead Iodide”, Feature Article - J. Phys. Chem. Lett., 2015, 6(5): 898-907.
[5] S Veldhius, PP Boix, N Yantara, M Li, TC Sum, N Mathews, and SG Mhaisalkar, “Perovskite Materials for Light-Emitting Diodes and Lasers,” Advanced Materials, 2016, DOI: 10.1002/adma.201600669.
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.