Proceedings of 6th International Conference on Hybrid and Organic Photovoltaics (HOPV14)
Publication date: 1st March 2014
Lead halide perovskites currently attracted widespread attention for photovoltaic devices due their large absorption coefficients, high carrier mobility and the possibility of controlling their optoelectronic properties. Several reports used CH3NH3PbI3 perovskite nanocrystals as sensitizers with liquid electrolyte[i], the performance of these systems rapidly declined due to dissolution of the perovskite. Recently impressive progress was achieved using spiro-OMETAD as hole conductor in solid state sensitized solar cell achieving power conversion efficiency of 15%[ii]. However using hole conductor in the solid-state sensitized solar cells can posses some problems such us difficulties in pore filling, additional resistances at the interface and stability issue which affect the possibility for long term use.
In this work a hole conductor free CH3NH3PbI3 / TiO2 heterojunction solar cell using a thick CH3NH3PbI3 film is presented. The CH3NH3PbI3 formed large crystals which function simultaneously as sensitizers and as hole transport material.
The lead iodide CH3NH3PbI3(perovskite)/TiO2 heterojunction solar cell was produced by deposition of perovskite nanoparticles from a solution of CH3NH3I and PbI2 in g-butyrolactone on a film of TiO2 (anatase) Nanoparticles.
The simple mesoscopic CH3NH3PbI3/TiO2 heterojunction solar cell shows impressive power conversion efficiency of 8% with current density of 18.8 mA/cm2, the highest efficiency achieved so far for perovskite based solar cells without hole conductor.
[i]J.HyoekIm, C.-R.Lee, J.-W Lee, S.-W.Park, N.-G. Park, Nanoscale. 2011, 3, 4088. [ii]Julian Burschka, Norman Pellet, Soo-Jin Moon, Robin Humphry-Baker, Peng Gao, Mohammad K. Nazeeruddin1 & Michael Graetzel, Nature, 2013, 499, 316.
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.