Počet záznamů: 1
Sulfur- and Nitrogen-Containing Porous Donor-Acceptor Polymers as Real-Time Optical and Chemical Sensors
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SYSNO ASEP 0511002 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Sulfur- and Nitrogen-Containing Porous Donor-Acceptor Polymers as Real-Time Optical and Chemical Sensors Tvůrce(i) Kochergin, Y. S. (DE)
Noda, Y. (DE)
Kulkarni, R. (DE)
Škodáková, Klára (UOCHB-X)
Tarábek, Ján (UOCHB-X) RID, ORCID
Schmidt, J. (DE)
Bojdys, M. J. (DE)Zdroj.dok. Macromolecules. - : American Chemical Society - ISSN 0024-9297
Roč. 52, č. 20 (2019), s. 7696-7703Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova triazine-based frameworks ; conjugated polymers ; protonation Vědní obor RIV CD - Makromolekulární chemie Obor OECD Polymer science Způsob publikování Omezený přístup Institucionální podpora UOCHB-X - RVO:61388963 UT WOS 000492801000017 EID SCOPUS 85073161532 DOI 10.1021/acs.macromol.9b01643 Anotace Fully aromatic, organic polymers have the advantage of being composed from light, abundant elements, and are hailed as candidates in electronic and optical devices 'beyond silicon', yet, applications that make use of their pi-conjugated backbone and optical bandgap are lacking outside of heterogeneous catalysis. Herein, we use a series of sulfur- and nitrogen-containing porous polymers (SNPs) as real-lime optical and electronic sensors reversibly triggered and reset by acid and ammonia vapors. Our SNPs incorporate donor-acceptor and donor-donor motifs in extended networks and enable us to study the changes in bulk conductivity, optical bandgap, and fluorescence lifetimes as a function of pi-electron de/localization in the pristine and protonated states. Interestingly, we find that protonated donor-acceptor polymers show a decrease of the optical bandgap by 0.42 to 0.76 eV and longer fluorescence lifetimes. In contrast, protonation of a donor-donor polymer does not affect its bandgap, however, it leads to an increase of electrical conductivity by up to 25-fold and shorter fluorescence lifetimes. The design strategies highlighted in this study open new avenues toward useful chemical switches and sensors based on modular purely organic materials. Pracoviště Ústav organické chemie a biochemie Kontakt asep@uochb.cas.cz ; Kateřina Šperková, Tel.: 232 002 584 ; Viktorie Chládková, Tel.: 232 002 434 Rok sběru 2020 Elektronická adresa https://pubs.acs.org/doi/10.1021/acs.macromol.9b01643
Počet záznamů: 1