Vacuum Processed Perovskites for Optoelectronic Devices

Metal-halide perovskites (MHP) are one of the most promising low-cost optoelectronic materials due to their excellent optoelectronic properties and fabrication versatility. The need to transfer the existing technology into large areas by industrial-compatible high throughput methods is becoming more urgent [1].<br/>Thermal evaporation is a promising MHP fabrication technique to bring this technology closer to reliable and extended production by relying on excellent size scalability, fine composition control, surface adaptability, and enabling precision in layer thickness and fine control on composition [2-7]. On one hand, this annealing-free deposition process guarantees a strain-free perovskite and PSCs with remarkable thermal stability and structural robustness [4]. On the other, thermal evaporation of perovskite has expanded the horizons of thin film fabrication, proving the ability to produce ultrathin perovskite films as the base of multi-quantum well (MQW) structures.<br/>Controlling the optoelectronic features of thin films and nanostructured materials, capitalizing on the quantum confinement effects, can open up a novel pathway for investigating cutting-edge phenomena and for new optoelectronic applications.<br/><br/><b>References </b><br/>1. J. Avila et al., Joule 2017, 2, 431; F, Kosaisih et al., Joule 2022,12, 2692; Y. Vaynzof, Adv. Energy Mat. 2020, 10, 2003073<br/>2. J. Li et al., Joule 2020, 4, 1035<br/>3. H.A. Dewi et al.<b>, </b>Sust. Energy & Fuels. 2022, <b>6</b>, 2428<br/>4. E. Erdenebileg, et al Solar RRL, 2022, 6, 2100842<br/>5. H.A. Dewi, et al., Adv. Funct. Mater. 2021, 11, 2100557<br/>6. J. Li et al., Adv. Funct. Mater. 2021, 11, 2103252<br/>7. E. Erdenebileg et al., Material Today Chemistry, 2023, 30, 101575