Proceedings of MATSUS Spring 2025 Conference (MATSUSSpring25)
DOI: https://doi.org/10.29363/nanoge.matsusspring.2025.166
Publication date: 16th December 2024
Polarizers are ubiquitous components in modern optoelectronic devices including displays and photographic cameras. However, achieving efficient control of light polarization remains an unsolved challenge. The main drawback of the existing display technologies relies on the substantial optical losses due to the use of polarizers for generating polarized light. In this context, organometal halide perovskite (OMHP) nanostructures offer a promising solution owing to their tunable optical properties—including adjustable bandgap, photoluminescence, and efficient light emission with minimal non-radiative recombination.[1–3] Their outstanding electrical properties have elevated hybrid perovskites as the material of choice in photovoltaics and optoelectronics. Among the different OMHP nanostructures, nanowires and nanorods have lately arisen as key players in controlling light polarization for lighting or detector applications.
In this work,[4] we propose applying an evolved version of the vacuum technique Glancing Angle Deposition (GLAD) as an advanced alternative to synthesising anisotropic-supported OMHP nanostructures. Our approach is a two-step fabrication procedure consisting of the room temperature deposition of PbI2 at glancing angles, followed by deposition of CH3NH3I at normal incidence (0º). As a result, highly anisotropic perovskite nanostructures resembling “nanowalls” have been fabricated. Such alignment degree endows the samples with anisotropic optical properties such as UV-visible absorption and photoluminescence. Moreover, their implementation in n-i-p solar cells can be used to develop self-powered polarization-sensitive photodetectors along the visible range. Thus, the use of Glancing Angle Deposition yields OMHP nanostructures with high anisotropy, controlled microstructure, and thickness, demonstrating potential for scalable, large-area fabrication. This technique is fully compatible with microelectronic and optoelectronic processing methods including CMOS and roll-to-roll technologies, which opens the path towards developing tuneable anisotropic optoelectronic devices based on OMHP.
Projects PID2022-143120OB-I00, TED2021-130916B-I00, and PCI2024-153451 funded by MCIN/AEI/10.13039/501100011033 and by "ERDF (FEDER), A way of making Europe”, Fondos NextgenerationEU and “Plan de Recuperación, Transformación y Resiliencia".
Project ANGSTROM was selected in the Joint Transnational Call 2023 of M-ERA.NET 3, which is an EU-funded network of about 49 funding organisations (Horizon 2020 grant agreement No 958174).
The project leading to this article has received funding from the EU H2020 program under grant agreement 851929 (ERC Starting Grant 3DScavengers).
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.