Proceedings of nanoGe Fall Meeting 2018 (NFM18)
Publication date: 6th July 2018
Nanoparticles showing a localized surface plasmon resonance (LSPR) in the visible part of the electromagnetic spectrum have been intensively researched regarding their potential application in various fields such as surface-enhanced Raman spectroscopy (SERS) or as nanosensors and catalysts [1], [2]. So far, this area of research has been strongly dominated by particles consisting of noble metals like Au and Ag. The presented work will show an evaluation of the extinction properties of alternative materials which have only recently been found to exhibit a LSPR [3]. The range of investigated materials includes highly monodisperse quasi-spherical Ni3S2 nanocrystals and Au-Ni3S2 core-shell nanostructures of different sizes, which will be compared to pure Au nanoparticles regarding their molar extinction coefficient. Our results show that the extinction coefficient of the Ni3S2 nanocrystals is similar to those of Au particles of the same diameter leading to the conclusion that the nickel sulfide material could potentially be used for optical applications instead of the much more expensive noble metal. Additionally, the molar extinction coefficient of the core-shell structures can be varied between the values of the pure materials depending on the shell thickness, resulting in a highly tunable system [4].
The plasmonic nature of the nickel sulfide particles was confirmed by transient absorption spectroscopy measurements and all of the used nanostructures were additionally analyzed via electron microscopy, selected area electron diffraction and x-ray diffraction.
Rasmus Himstedt is grateful to the Hannover School for Nanotechnology (HSN) for financial support. Dominik Hinrichs and Dirk Dorfs thank the Deutsche Forschungsgemeinschaft (DFG, Grant 1580/3-1 and 1580/5-1) and the Volkswagen Foundation (Lower Saxony/Israel cooperation, Grant ZN2916) for funding.
The Laboratory for Nano- and Quantumengineering (LNQE) is acknowledged for providing access to TEM measurement facilities.
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.