Proceedings of MATSUS23 & Sustainable Technology Forum València (STECH23) (MATSUS23)
DOI: https://doi.org/10.29363/nanoge.matsus.2023.274
Publication date: 22nd December 2022
We present Pulsed Laser Deposition (PLD) as a physical vapor deposition of halide perovskites, allowing near stoichiometric transfer and multi-element film formation independent of the relative volatility of the elements from a single solid target. We will discuss the effects of deposition pressure, deposition rate and PLD target composition on the formation of stoichiometric and phase-pure films of CsSnI3, MAPbI3, MA1-xFAxPbI3 and Cs2AgBiBr6. Microstructural, compositional and optoelectronic characterization of the films confirmed that PLD allows control on polymorph formation, optical properties, thickness, and conformal coating on textured substrates [1,2,3]. At the device level, we discuss the influence of the bottom contact layers on the first stages of the perovskite film growth, final film morphology and solar cell performance. Proof-of-concept n-i-p and p-i-n solar cells with > 14 % efficiency are demonstrated with as-deposited room-temperature grown PLD-MA1-xFAxPbI3 films. All these are important steps forward in the controlled growth and future scalability of vapor-deposition methods for perovskite solar cells.[4]
This project is financed by the European Research Council (ERC) under the European Union’s Horizon 2020 Research and Innovation Program (CREATE, Grant Agreement No. 852722).
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