Publication date: 8th October 2020
With the aim to harvest solar energy as green energy, photosynthetic protein complexes are attractive building blocks for the fabrication of semi-artificial energy conversion devices. Photosystem 1 (PS1), one of the key enzymes that drive photosynthesis, has been increasingly investigated for this aim due to its strong reductive force upon light-induced charge separation processes. In our work, isolated PS1 was integrated into an Os-complex modified redox polymer, which serves both as immobilization matrix and as efficient electron transfer mediator, resulting in a photocathode with high photocurrent generation, while methyl viologen served as the charge carrier for the collection of electrons exiting PS1 [1]. The fabricated photocathode was further investigated by scanning photoelectrochemical microscopy (SPECM), providing a better understanding of electron transfer processes and revealing possible short circuiting processes involved in photocurrent generation, when a conventional electron scavenger such as methyl viologen was used [2]. The detailed knowledge acquired enabled a further optimized design and fabrication of PS1-based photocathodes, leading to an improved efficiency by minimizing short circuiting processes [3]. Moreover, light-induced H2 evolution was realized when a hydrogenase was integrated within the fabricated PS1 based photocathode. Further coupling with a photosystem 2-based photoanode, made possible the implementation of a fully light-driven Z-scheme type water-splitting cell, without requiring any external bias voltage. In this photovoltaic cell, full biophotoelectrochemical water splitting is relying exclusively on light and the photosynthetic protein complexes as energy and photoactive materials respectively, while providing useful electrical power [3].
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.