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Issue 43, 2019
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A solution-based ALD route towards (CH3NH3)(PbI3) perovskite via lead sulfide films

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Abstract

We present a procedure to grow thin films of lead sulfide (PbS) with ‘solution Atomic Layer Deposition’ (sALD), a technique which transfers the principles of ALD from the gas phase (gALD) to liquid processing. PbS thin films are successfully deposited on planar and porous substrates with a procedure that exhibits the unique ALD characteristics of self-limiting surface chemistry and linear growth at room temperature. The polycrystalline p-type PbS films are stoichiometric and pure. They are converted to the hybrid perovskite methylammonium iodoplumbate (methylammonium lead iodide, MAPI, CH3NH3PbI3) by annealing to 150 °C in the presence of vapors from methylammonium iodide (MAI).

Graphical abstract: A solution-based ALD route towards (CH3NH3)(PbI3) perovskite via lead sulfide films

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Publication details

The article was received on 03 Sep 2019, accepted on 07 Oct 2019 and first published on 23 Oct 2019


Article type: Paper
DOI: 10.1039/C9TA09715E
J. Mater. Chem. A, 2019,7, 25112-25119
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    A solution-based ALD route towards (CH3NH3)(PbI3) perovskite via lead sulfide films

    V. M. Koch, M. K. S. Barr, P. Büttner, I. Mínguez-Bacho, D. Döhler, B. Winzer, E. Reinhardt, D. Segets and J. Bachmann, J. Mater. Chem. A, 2019, 7, 25112
    DOI: 10.1039/C9TA09715E

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