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New Routes to More Efficient Vapor Deposited Metal-Halide Perovskite Films

January 11, 2021 | By KJLC Innovate

For nearly a decade the Kurt J Lesker Company has been shipping Physical Vapor Deposition (PVD) tools into the field of perovskite solar cells around the world and continues to support world class research into this exciting technology. A key topic in the fabrication of vapor deposited perovskite photovoltaics is how much the crystal grain boundaries affect the solar cell performance (see Figure 1). Recent work, published in ACS Energy Letters, titled "Control over crystal size in vapor deposited metal-halide perovskite films' by Killian Lohmann, Jay Patel, Mathias Uller Rothmann, Chelsea Xia, Robert Oliver, Laura Herz, Henry Snaith and Michael Johnston from the University of Oxford, in the UK, has not only identified key parameters that effect the grain growth in perovskite thin films but the team has also developed a novel method to control the deposition of the organic precursor, resulting in highly efficient solar cells.

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