Počet záznamů: 1
Selective self-assembly and light emission tuning of layered hybrid perovskites on patterned graphene
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SYSNO ASEP 0493467 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Selective self-assembly and light emission tuning of layered hybrid perovskites on patterned graphene Tvůrce(i) Guerra, Valentino Libero Pio (UFCH-W) ORCID, RID, SAI
Kovaříček, Petr (UFCH-W) ORCID, RID
Valeš, Václav (UFCH-W) RID, ORCID
Drogowska, Karolina (UFCH-W) RID
Verhagen, Timotheus (FZU-D) ORCID
Vejpravová, J. (CZ)
Horák, L. (CZ)
Listorti, A. (IT)
Colella, S. (IT)
Kalbáč, Martin (UFCH-W) RID, ORCIDZdroj.dok. Nanoscale. - : Royal Society of Chemistry - ISSN 2040-3364
Roč. 10, č. 7 (2018), s. 3198-3211Poč.str. 14 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova lead halide perovskite ; broad-band emission ; solar-cells ; functionalized graphene ; raman-spectroscopy Vědní obor RIV CF - Fyzikální chemie a teoretická chemie Obor OECD Physical chemistry Vědní obor RIV – spolupráce Fyzikální ústav - Fyzika pevných látek a magnetismus CEP LL1301 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UFCH-W - RVO:61388955 ; FZU-D - RVO:68378271 UT WOS 000425348100012 EID SCOPUS 85042172283 DOI 10.1039/c7nr07860a Anotace The emission of light in two-dimensional (2-D) layered hybrid organic lead halide perovskites, namely (R-NH3)(2)PbX4, can be effectively tuned using specific building blocks for the perovskite formation. Herein this behaviour is combined with a non-covalent graphene functionalization allowing excellent selectivity and spatial resolution of the perovskite film growth, promoting the formation of hybrid 2-D perovskite : graphene heterostructures with uniform coverage of up to centimeter scale graphene sheets and arbitrary shapes down to 5 mu m. Using cryo-Raman microspectroscopy, highly resolved spectra of the perovskite phases were obtained and the Raman mapping served as a convenient spatially resolved technique for monitoring the distribution of the perovskite and graphene constituents on the substrate. In addition, the stability of the perovskite phase with respect to the thermal variation was inspected in situ by X-ray diffraction. Finally, time-resolved photoluminescence characterization demonstrated that the optical properties of the perovskite films grown on graphene are not hampered. Our study thus opens the door to smart fabrication routes for (opto)-electronic devices based on 2-D perovskites in contact with graphene with complex architectures. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2019
Počet záznamů: 1