Publication date: 15th December 2025
High-quality and stable perovskite absorbers are crucial for a wide range of photovoltaic and optoelectronic applications, spanning single-junction solar cells, multi-junction architectures such as perovskite–silicon and all-perovskite tandems, as well as light-emitting devices and photodetectors [1, 2]. However, achieving high-quality perovskite films remains challenging due to such problems as incomplete crystallization, non-uniform halide incorporation, phase stability, and high defect densities, which often arise from the chosen deposition method and are closely linked to the targeted composition and bandgap. In this presentation, we introduce a potential multiple-deposition strategy for modulating the perovskite formation process, thereby enhancing crystallization kinetics and film uniformity, with potential broad applicability across a wide bandgap range.
By employing diverse deposition routes, including fully vacuum thermal evaporation and sequential hybrid that combine vacuum-deposited inorganic scaffolds with solution-based organic deposition, it becomes possible to control perovskite crystallization and tailor compositions and optoelectronic properties for targeted applications [3-5]. Coupled with additive and passivation strategies that improve crystallization and suppress defects, the precise coating and compositional control of vacuum-based methods, together with the flexibility of solution-based organic deposition, enable these complementary techniques to collectively advance perovskite deposition for specific optoelectronic properties [6], offering broad compatibility across diverse surfaces and providing a highly versatile and scalable platform for efficient materials screening and rapid optimization.
References:
1. White, L.R.W., et al., ACS Energy Letters, 2024. 9(9): p. 4450-4458.
2. Chin, X.Y., E. Albanesi, and A. Bruno. Springer Nature Switzerland: Cham. p. 1-24.
3. Kosasih, F.U., et al., Joule, 2022. 6(12): p. 2692-2734.
4. Dewi, H.A., et al., ACS Applied Energy Materials, 2025. 8(12): p. 7769-7779.
5. De Luca, D., et al., ACS Energy Letters, 2025. 10(5): p. 2236-2240.
6. White, L.R.W., et al., ACS Energy Letters 9 (3), 835-842
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