Proceedings of nanoGe September Meeting 2015 (NFM15)
Publication date: 8th June 2015
Semiconductor quantum dots (QDs) have been intensively studied in the last few decades for optoelectronic applications as solar cells, photodetectors, LEDs or lasers. QDs are extremely interesting for these applications due to the their outstanding properties as tunable band gap, high extinction coefficients, large intrinsic dipole moment, and very important also, devices can be prepared from low cost solution methods. Moreover in the last three years the interests in hybrid halide perovskite (HPVK) has been boosted mainly due to the amazing photoconversion efficiencies, higher than 20%, reported using these materials as light absorbers in devices prepared from solution methods.
Combination of materials with different nature is a procedure well known to mankind that has been exploited since hundreds, even thousands, of years ago as it is exemplified with adobe, concrete, or stained glass. Despites the interest of both QDs and HPVK for the development of optoelectronic devices there are very few examples of the combination of both kind of materials. Nevertheless very interesting synergies could be expected from the interactions between them.
Here, we present the study of core/shell PbS/CdS and CH3NH3PbI3 single layer and the combination of QD/HPVK bilayer. The deposition and annealing conditions are studied as optimum conditions for QDs are sensibly different that the ones for HPVK. Photoluminescence and electroluminescence has been systematically analyzed, highlighting the effect of interaction. The implications for the development of near infrared LEDs will be discussed.
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.
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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.