| Autor: |
Ihrenberger, Jakob, Roux, Frédéric, Lédée, Ferdinand, Emieux, Fabrice, Anglade, Christelle, Lemercier, Thibault, Lorin, Géraldine, Gros-Daillon, Eric, Grenet, Louis |
| Zdroj: |
Crystal Growth & Design; 20240101, Issue: Preprints |
| Abstrakt: |
The all-inorganic metal halide perovskite CsPbBr3is a well-known semiconductor which attracts attention from many researchers in the field of optoelectronics. Although CsPbBr3in the form of single crystals offers the best charge transport properties, their high cost of fabrication makes them less suitable for large-scale applications. Polycrystalline films, on the other hand, can fill this market gap, and numerous solution- and vapor-based techniques exist to produce them. However, no superior solution has been found yet, and we propose the less explored close space sublimation (CSS), a fast and scalable physical vapor deposition technique, as a viable processing technique for manufacturing CsPbBr3films. We show the fabrication of high-quality single-phase CsPbBr3films with homogeneous film thicknesses over an area of 3.14 cm2. By optimizing the deposition temperature, a growth rate of 10 μm/min can be reached with a material utilization of up to 98%. In addition, the necessary CsPbBr3source material is synthesized via ball milling; hence, the whole process is solvent-free. This work aims at rationalizing the CSS process and offering a comprehensive study of the impact of the deposition conditions on the growth of CsPbBr3. |
| Databáze: |
Supplemental Index |
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