Publication date: 8th January 2019
Organic inorganic (hybrid) perovskite solar cells are considered one of the most promising technologies for future photovoltaics, due to the fast rise of the achievable power conversion efficiency (PCE). The highest power conversion efficiencies obtained recently in literature are via solution-processing, but fully vacuum deposited solar cells are in the same league and able to surpass this record value. The main counterpart of this technique is the presence of doped organic electron/hole transporters, which are not stable at high temperatures nor for long periods of time.
In our previous work we replaced the doped N layer in NiP configuration reducing the parasitical absorption reaching PCEs higher than 20%, but we still relied on a doped P layer. In this work we replace this doped P layer in our PiN and NiP configurations with Molybdenum oxide. MoO3 is an interesting material due to its low lying conduction band which allows hole transport and also due to its low parasitic absorption and stability. We are able to deposit it via vacuum sublimation without any requirement of annealing by changing its WF through an interfacial modification, mantaining opened the possibility of using flexible substrates or being used in tandem solar cells. We are also able to deposit it in our inverted structure without compromising the already deposited layers, reaching power conversion efficiencies higher than 18% in both cases.
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.
The science and technology of advanced materials is a major resource of humanity to tackle global challenges. The Materials for Sustainable Development Conference is a forum for directing the knowledge and tools of science and technology of advanced materials to the areas and problems that contribute to the societal change.
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.