Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV23)
Publication date: 30th March 2023
Over the last few years, SnO2 has become the most popular electron transport layer (ETL) in n-i-p perovskite solar cells. Power conversion efficiencies of more than 25 % have been achieved. SnO2-based ETLs are attractive because of their low cost, low processing temperature (< 200 C), good optical properties and wide bandgap (3.6 eV). The origin of high performance of SnO2 is surprising, considering that its conduction band edge is well below that of TiO2 by about 0.3 eV.
We performed time-resolved photovoltage measurements that showed slow photovoltage rise and decay. A biphasic characteristic was found, where about half the voltage changes on the millisecond timescale and the rest on the second time scale. The slow process suggests that ion electrosorption and / or intercalation processes take place at the SnO2 / perovskite interface. We propose that these processes align the energy levels of SnO2 with that of the perovskite.
In addition, we will discuss the scalable deposition of SnO2 layers by slot-die coating of water-based colloidal solution.
We thank the DIAMOND project (EU Horizon no. 101084124) and the STandUP for Energy program for funding.
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.