Proceedings of nanoGe September Meeting 2017 (NFM17)
Publication date: 20th June 2016
Photo-catalytic carbon dioxide (CO2) reduction is one of the most promising prospects for energy storage. The possibility to reduce the content of CO2 in the atmosphere by photo-catalytic CO2 conversion into solar fuels intensifies the interest to investigate this topic even more. Yet, many different issues have to be coped with before CO2 reduction can take a major role in future energy technology. One is the challenge to influence the CO2 reduction process in order to increase the amount of desired products. The use of indium gallium nitride (InGaN) as a working electrode may solve this issue. By adjusting the alloy composition of InGaN, it is possible to tune the band level energies, which might enhance the production of specific products, such as ethanol. In addition to this, InGaN is relatively stable under working conditions and is able to provide high-energy electrons, necessary for CO2 reduction.
The focus of the current work is the fabrication and characterization of such InGaN photo-electrodes. Using plasma-assisted Molecular Beam Epitaxy, we are able to precisely control the n- and p-type doping and alloy composition of the grown InGaN. To investigate the crystal quality of these samples we use High Resolution X-ray Diffraction and low temperature Photoluminescence, which provides information about the defects and in addition delivers the band gap energy. Kelvin Force Probe Microscopy offers interesting information about the surface potential landscape of the samples under illumination and Hall measurements reveal their charge carrier density. By using Cyclic Voltammetry and Impedance Spectroscopy, we are able to get insight into the charge transfer processes between the InGaN electrodes and suitable electrolytes.
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.