Proceedings of nanoGe September Meeting 2017 (NFM17)
Publication date: 20th June 2016
Solar chemical production attracts intense interest for converting solar energy into storable and distributable chemicals. While numerous semiconductors have been investigated, Si is among most promising semiconductors due to its bandgap of 1.12 eV. Here, I’ll present our recent works on Si photoelectrodes for efficient and selective photoelectrochemical (PEC) solar chemical production. Firstly, I’ll introduce a new PEC photoelectrode architecture which can maximize both light absorption and electrocatalysis on a photoelectrode. This architecture utilizes a high surface area, nanostructured cocatalysts locally defined on a photoelectrode. This local nanostructured cocatalysts provide large reaction sites and also allow light absorption in the photoelectrode. Along with PEC device modeling, we fabricate a model PEC device using Si photoanode with local Ni inverse opal (IO) nanostructures. By systematically changing surface coverage and surface area of Ni IOs on Si photoanodes, PEC devices physics of our photoelectrodes were investigated. In the second part of talk, I’ll talk about Si photocathodes with nanoporous Au cocatalysts for solar CO2 reduction reaction. The nanoporous Au cocatalysts is formed by simple electrochemical oxidation and reduction of Au thin films. Our Si photocathode with the nanoporous Au cocatalysts shows excellent CO2 reduction selectivity more than 90%. In the presentation, PEC performance of our Si electrode will be presented in detail.
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.