Repozitorij Univerze v Novi Gorici

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Naslov:A pyrrolopyridazinedione-based copolymer for fullerene-free organic solar cells
Avtorji:Knall, Astrid-Caroline (Avtor)
Rabensteiner, Samuel (Avtor)
Hoefler, Sebastian F. (Avtor)
Reinfelds, Matiss (Avtor)
Hobisch, Mathias (Avtor)
Ehmann, Heike M. A. (Avtor)
Pastukhova, Nadiia (Avtor)
Pavlica, Egon (Avtor)
Bratina, Gvido (Avtor)
Hanzu, Illie (Avtor)
Wen, Shuguang (Avtor)
Yang, Renqiang (Avtor)
Trimmel, Gregor (Avtor)
Rath, Thomas (Avtor)
Datoteke:Gradivo nima datotek. Gradivo je morda fizično dosegljivo v knjižnici fakultete, zalogo lahko preverite v COBISS-u. Povezava se odpre v novem oknu
Jezik:Angleški jezik
Vrsta gradiva:Delo ni kategorizirano (r6)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis:The recent success of non-fullerene acceptors in organic photovoltaics also entails a change in the requirements to the polymer donor in terms of optical and morphological properties leading to a demand for novel conjugated polymers. Herein, we report on the synthesis of a 1,4-bis-(thiophene-2-yl)-pyrrolopyridazinedione based copolymer with 2-ethylhexyl substituents on the pyrrolopyridazinedione moiety. A 2D conjugated benzodithiophene (BDT) was chosen as comonomer. The resulting copolymer T-EHPPD-T-EHBDT showed a molecular weight of 10.2 kDa, an optical band gap of 1.79 eV, a hole mobility of 1.8 × 10−4 cm2 V−1 s−1 and a preferred face-on orientation with regard to the substrate. The comparably wide band gap as well as the determined energy levels (HOMO: −5.47 eV, LUMO: −3.68 eV) match well with the narrow band gap non-fullerene acceptor ITIC-F, which was used as the acceptor phase in the bulk heterojunction absorber layers in the investigated solar cells. The solar cells, prepared in inverted architecture, revealed power conversion efficiencies up to 7.4% using a donor:acceptor ratio of 1 : 1 in the absorber layer.
Ključne besede:non-fullerene solar cells, charge transport, charge mobility, power conversion efficiency
Leto izida:2021
Št. strani:1001-1009
Številčenje:45
COBISS_ID:48862979 Povezava se odpre v novem oknu
URN:URN:SI:UNG:REP:5TLY9IH1
DOI:10.1039/D0NJ04573J Povezava se odpre v novem oknu
Število ogledov:731
Število prenosov:0
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
Področja:Gradivo ni uvrščeno v področja.
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Skupna ocena:(0 glasov)
Vaša ocena:Ocenjevanje je dovoljeno samo prijavljenim uporabnikom.

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Gradivo je del revije

Naslov:New Journal of Chemistry
Skrajšan naslov:New J. Chem.
Leto izida:2021

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