Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV22)
DOI: https://doi.org/10.29363/nanoge.hopv.2022.143
Publication date: 20th April 2022
Organic-Inorganic Perovskites solar cells (PSCs) have shown power conversion efficiencies (PCE) up to 25.7% in less than a decade. [1] However, the key challenge towards the commercialization is its long-term operational instability, often originating due to mismatched interfaces. Interface engineering has been extensively used to passivate the chemical defects in the perovskite films leading to both, performance and stability enhancement. In this work, we employ the idea of surface polishing to eliminate defects/the presence of amorphous phases on the surface of perovskite film. [2,3] Application of a high-intensity laser pulse partially etches the defective perovskite film and helps in grain growth by recrystallization. [4]
We use a pulsed UV laser beam on the crystallized perovskite film and optimally tune laser power to polish the surface without compromising the short-circuit current density (Jsc). As an effect of polishing, surface roughness decreases, and photoluminescence increases resulting from the suppression in the non-radiative recombination. The device data also shows significant enhancement in FF by an absolute >4% and Voc increment of >15 meV confirming the reduction in interface losses. As a result, overall PCE increases. The results show a great potential of laser polishing in reliable, well-controllable, and scalable surface treatments in PSCs.
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.