Proceedings of International Conference on Perovskite Thin Film Photovoltaics and Perovskite Photonics and Optoelectronics (NIPHO25)
Publication date: 24th April 2025
A substantial effort has been made over the past decade to develop lead-free alternatives to halide perovskites that could emulate their exceptional optoelectronic properties, but overcome their stability and toxicity limitations. Many of these perovskite-inspired materials are visible light absorbers, and a promising application is indoor light harvesting [1]. This talk discusses our recent work on two such materials for indoor photovoltaics: BiSBr and Sb2S3. BiSBr is novel light absorber [2]; Sb2S3 has been developed for solar cells, but its development for indoor photovoltaics hasjust begun [3]. We show both materials to be stable in air, and for Sb2S3, we achieve large-grained films with compact morphology through hydrothermal growth with monoethanoamine additives. By lowering the grain boundary density, we achieve increases in open-circuit voltage to 0.8 V under 1-sun illumination [2]. For IPVs, we achieve 17.55% power conversion efficiency under 3000 K white light emitting diode illumination (1000 lx), and create 5 cm2-area minimodules to demonstrate their applications in powering a multisensory platform used for IoT [3]. This places Sb2S3 IPVs among the most efficient for pnictogen-based semiconductors, and the devices were also stable for at least a month of testing without encapsulation [3].
To finish this talk, I will discuss the debate in the growing community working on emerging materials for IPV around a consensus in performance measurement. I focus on the open questions and possible solutions being proposed, as well as future pathways.
R. L. Z. Hoye thanks the UK Research and Innovation for funding through a Frontier Grant (no. EP/X029900/1), awarded through the 2021 ERC Starting Grant Scheme. We also thank EPSRC for funding (no. EP/V014498/2), as well as the Royal Academy of Engineering through the Senior Research Fellowship scheme (no. RCSRF/2324-18-68).
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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.