Publication date: 11th March 2026
At the beginning of the 21st century, carbon neutral and sustainable energy sources need to be considered instead of exhaustible fossil fuels to meet the growing demand and combat global warming. Within this very challenging race for alternative energy sources, metal halide perovskite solar cells (PSCs) have undergone unprecedented progress with efficiencies reaching now 26.95% and even over 30% in tandem configuration1 and sparked great excitement in the photovoltaics community due to their flexibility and ability to be synthesized at low cost.
However, since hybrid halide perovskites have a highly ionic character, they can decompose under external stresses such as moisture, solvents and heating cycles.2,3,4 Reducing environmental stresses imposed by moisture or oxygen for example, in order to improve the long-term stability of perovskite solar cells, is critical to the deployment of this technology.
In this communication, we will discuss the preliminary development of new electron
transport layers (ETLs) and their use in inverted perovskite solar cells (PSCs). The present study concentrated on two distinct methodologies, utilizing small molecules in one case and polymers in the other. The utilization of these materials has the potential to create a more compact layer, thereby protecting the perovskite layer from oxygen and water. This is a significant challenge in the field of PSCs and requires further study.5 Crosslinking has been demonstrated to enhance mechanical strength, a critical factor in ensuring durability. Furthermore, cross-linkable ETLs have the potential to act as an insulating layer against harmful environments and for lead sequestration. Moreover, these novel materials were incorporated into devices for the purpose of studying the stability of perovskite solar cells, whilst ensuring the continued efficiency of the devices.
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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.
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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.