Počet záznamů: 1  

Effect of lead thiocyanate ions on performance of tin-based perovskite solar cells

  1. 1.
    SYSNO ASEP0523659
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JČlánek ve WOS
    NázevEffect 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 článku228067
    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. slovaAdditive ; Perovskite solar cell ; Thiocyanate
    Vědní obor RIVCG - Elektrochemie
    Obor OECDElectrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
    CEP8F17001 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy
    Způsob publikováníOmezený přístup
    Institucionální podporaUFCH-W - RVO:61388955
    UT WOS000523643100015
    EID SCOPUS85082190323
    DOI10.1016/j.jpowsour.2020.228067
    AnotacePerovskite 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.
    PracovištěÚstav fyzikální chemie J.Heyrovského
    KontaktMichaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
    Rok sběru2021
    Elektronická adresahttp://hdl.handle.net/11104/0307976
Počet záznamů: 1  

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