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Effect of lead thiocyanate ions on performance of tin-based perovskite solar cells
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SYSNO ASEP 0523659 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Effect of lead thiocyanate ions on performance of tin-based perovskite solar cells Tvůrce(i) Heo, D. Y. (KR)
Lee, T. H. (KR)
Iwan, A. (PL)
Kavan, Ladislav (UFCH-W) RID, ORCID
Omatová, M. (SK)
Majková, E. (SK)
Kamarás, K. (HU)
Jang, H. W. (KR)
Kim, S. Y. (KR)Číslo článku 228067 Zdroj.dok. Journal of Power Sources. - : Elsevier - ISSN 0378-7753
Roč. 458, MAY 2020 (2020)Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova Additive ; Perovskite solar cell ; Thiocyanate Vědní obor RIV CG - Elektrochemie Obor OECD Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis) CEP 8F17001 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Omezený přístup Institucionální podpora UFCH-W - RVO:61388955 UT WOS 000523643100015 EID SCOPUS 85082190323 DOI 10.1016/j.jpowsour.2020.228067 Anotace Perovskite solar cells (PSCs) have a high efficiency, and their price is relatively low. Thus, they are attracting considerable attention as a substitute for expensive Si solar cells. However, highly efficient PSCs are not ecofriendly, because they contain toxic metals such as Pb. Therefore, we develop Sn-based PSCs to reduce the Pb content. First, 11 different perovskite precursors are synthesized by increasing the amount of Pb(SCN)2 from 0 to 0.5 M in CH(NH2)2SnI3. Then, PSCs are fabricated, and their characteristics are compared. Scanning electron microscopy confirms that the proper amount of Pb(SCN)2 uniformizes the grain size of the perovskite layer and reduces the amounts of pinholes. The crystallization and optical absorption of each perovskite layer are confirmed by X-ray diffraction analysis and ultraviolet–visible spectra, and the characteristics of the PSCs are confirmed by the current density–voltage graph. The Sn-based PSCs with 0.25 M Pb(SCN)2 exhibit a high efficiency of 8.4%, which is significantly higher than that (1.6%) of Sn-based PSCs without Pb(SCN)2. The calculated Pb concentration of CH3NH3PbI3 is 0.37 g/mL, while that of CH(NH2)2SnI3 containing Pb(SCN)2 is 0.08 g/mL. These results indicate the possibility of producing highly efficient PSCs with reduced lead content. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2021 Elektronická adresa http://hdl.handle.net/11104/0307976
Počet záznamů: 1