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Upcycled synthesis and extraction of carbon-encapsulated iron carbide nanoparticles for gap Plasmon applications in perovskite solar cells
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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EcoMat: Functional Materials for Green Energy and Environment, Volume 5, issue 6
Abstract
An effective method for obtaining large amounts of metal nanoparticles (NPs) encapsulated by carbon layers through upcycling from floating-catalyst aerosol chemical vapor-deposited carbon nanotubes is demonstrated. NPs with diameters of less than 20 μm are selectively extracted from the synthesized carbon assortments through sonication, centrifugation, and filtration. The particles show an aggregation behavior owing to the π–π interaction between the graphitic carbon shells surrounding the iron carbides. By controlling the degree of the aggregation and arrangement, the light scattering by the gap-surface plasmon effect in perovskite solar cells is maximized. Application of the NPs to the devices increased the power conversion efficiency from 19.71% to 21.15%. The short-circuit current density (JSC) trend over the particle aggregation time accounts for the plasmonic effect. The devices show high stability analogue to the control devices, confirming that no metal-ion migration took place thanks to the encapsulation. (Figure presented.).
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Funding Information: This work was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (MSIT) of the Korean government (NRF‐2021R1C1C1009200, NRF‐2021M3H4A6A01045764). This research was supported by Sungkyunkwan University (SKKU) and the BK21 FOUR (Graduate School Innovation) funded by the Ministry of Education (MOE, Korea) and NRF. This work was supported by the Academy of Finland (ANCED project). We thank Kyungshin Holdings Co. Ltd. for financial support. Publisher Copyright: © 2023 The Authors. EcoMat published by The Hong Kong Polytechnic University and John Wiley & Sons Australia, Ltd.
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Han, J, Kim, K, Tavakkoli, M, Lee, J, Kim, D, Chung, I, Lee, A, Park, K, Liao, Y, Lee, J W, Lee, S K, Oh, J W, Sung, H, Kauppinen, E & Jeon, I 2023, 'Upcycled synthesis and extraction of carbon-encapsulated iron carbide nanoparticles for gap Plasmon applications in perovskite solar cells', EcoMat: Functional Materials for Green Energy and Environment, vol. 5, no. 6, e12342. https://doi.org/10.1002/eom2.12342