Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV16)
Publication date: 28th March 2016
Perovskite solar cells have now reached impressive certified efficiencies of 22.1% [KRICT]1. Efficient cells have been now been prepared using several lead halide perovskites and a wide variety of electron and hole conducting contacts. In the race to make ever more efficient cells, thorough device characterisation is lagging behind materials development. There are many open questions remaining, not least issues around hysteresis and the slow rise in open circuit photovoltage (it can take tens of minutes at room temperature) to its maximum value. It is probable that mobile ions (in particular iodide) are responsible for many of the effects.2,3
We have been working on characterising planar perovskite solar cells, fabricated in Oxford, using a range of techniques including IMVS and large amplitude voltage transients. We previously reported the impedance and Voc decay of planar cells. It was shown that, in contrast to Dye Sensitized Solar Cells, it is not possible to obtain information about electron-hole recombination in PSC using these techniques.4 We have continued our investigation of planar cells and in this presentation the characteristic responses that we measure for PSC (on the microsecond, millisecond and minute time scales) will be discussed and attributed to physical processes within the device.
1. http://www.nrel.gov/ncpv/images/efficiency_chart.jpg. 2. C. Eames, J. M. Frost, P. R. F. Barnes, B. C. O/'Regan, A. Walsh and M. S. Islam, Nat Commun, 2015, 6. 3. G. Richardson, S. E. J. O'Kane, R. G. Niemann, T. A. Peltola, J. M. Foster, P. J. Cameron and A. B. Walker, Energy Environ. Sci., 2016. 4. A. Pockett, G. E. Eperon, T. Peltola, H. J. Snaith, A. Walker, L. M. Peter and P. J. Cameron, The Journal of Physical Chemistry C, 2015, 119, 3456-3465.
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.