Low temperature plasma treatment of MAPI perovskite
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Year of publication | 2021 |
Type | Conference abstract |
MU Faculty or unit | |
Citation | KAŽIKOVÁ, Veronika, Július VIDA, Aleš VLKAL, Martin LEDINSKÝ, Anna ARTEMENKO and Tomáš HOMOLA. Low temperature plasma treatment of MAPI perovskite. In 2nd Plasma Nanotechnologies and Bioapplications Workshop. 2021. ISBN 978-80-210-9946-3. |
Description | Methylammonium-lead-iodide (MAPI) perovskite, as one of the most promising light-absorbing material in solar cells, have been spin-coated on glass substrates and treated with a low temperature plasma. Plasma treatment have already been used to other parts of perovskite solar cells (PSC), such as electron/hole transport layers or electrodes, in order to achieve more suitable connection of interfaces, lower the charge recombination rate and obtain higher power conversion efficiencies (PCE). [1] However little is known about the effect of different plasmas used directly on the perovskite surface. As a plasma source, diffuse coplanar surface barrier discharge (DCSBD) has been used, placed directly into a glovebox with nitrogen atmosphere together with a photoluminescence (PL) measurement setup to exclude contact of samples with ambient air during and directly after treatments. PL measurements have revealed intriguing behavior dependent on a length of a plasma treatment. Chemical composition of a surface after treatment has been determined by an X-ray photoelectron spectroscopy. |