Azulenocyanines immobilized on graphene; on the way to panchromatic absorption and efficient DSSC blocking layers
dc.authorid | Torres, Tomas/0000-0001-9335-6935 | |
dc.authorid | Ince, Mine/0000-0002-9164-0446 | |
dc.contributor.author | Volland, Michel | |
dc.contributor.author | Lennert, Annkatrin | |
dc.contributor.author | Roth, Alexandra | |
dc.contributor.author | Ince, Mine | |
dc.contributor.author | Torres, Tomas | |
dc.contributor.author | Guldi, Dirk M. | |
dc.date.accessioned | 2025-03-17T12:25:54Z | |
dc.date.available | 2025-03-17T12:25:54Z | |
dc.date.issued | 2019 | |
dc.department | Tarsus Üniversitesi | |
dc.description.abstract | Herein, a novel electron donor-acceptor hybrid consisting of a NIR absorbing azulenocyanine as an electron donor and few-layer graphene as an electron acceptor was prepared. The extended aromatic core of azulenocyanine (1) assists in the exfoliation of graphite and allows the formation of a very high-quality few-layer graphene azulenocyanine hybrid system (2). The formation of a stable azulenocyanine/graphene hybrid was verified by means of an arsenal of spectroscopic and microscopic techniques. Notable is the fact that the absorption spectrum recorded for 1 and likewise that for 2 covers large portions of the solar spectrum, that is, from the UV through the visible to the NIR region. In light of the latter, we incorporated 1 as well as 2 as a photosensitizer in dye sensitized solar cells (DSSCs) and probed their light harvesting. Besides an increase in the photovoltaic conversion efficiency we focused on the stability of DSSCs by preventing charge recombination between FTO and the liquid electrolyte. We used 2 as a blocking layer and in comparison with a TiCl4 pretreated blocking layer a superior conversion efficiency was realized. | |
dc.description.sponsorship | deutsche Forschungsgemeinschaft, Excellence Cluster Engineering of Advanced Materials; Bavarian State Government, Solar Technologies go Hybrid initiative; MINECO, Spain [CTQ2017-85393-P]; Comunidad de Madrid (FOTOCARBON) [S2013/MIT-2841]; deutsche Forschungsgemeinschaft [SFB 953] | |
dc.description.sponsorship | This work was supported by the deutsche Forschungsgemeinschaft as part of the Excellence Cluster Engineering of Advanced Materials and SFB 953 Synthetic Carbon Allotropes as well as by the Bavarian State Government as part of the Solar Technologies go Hybrid initiative. We are grateful for the financial support from the MINECO, Spain (CTQ2017-85393-P) and the Comunidad de Madrid (FOTOCARBON, S2013/MIT-2841). | |
dc.identifier.doi | 10.1039/c9nr02300c | |
dc.identifier.endpage | 10715 | |
dc.identifier.issn | 2040-3364 | |
dc.identifier.issn | 2040-3372 | |
dc.identifier.issue | 22 | |
dc.identifier.pmid | 31140533 | |
dc.identifier.scopus | 2-s2.0-85067085186 | |
dc.identifier.scopusquality | Q1 | |
dc.identifier.startpage | 10709 | |
dc.identifier.uri | https://doi.org/10.1039/c9nr02300c | |
dc.identifier.uri | https://hdl.handle.net/20.500.13099/1913 | |
dc.identifier.volume | 11 | |
dc.identifier.wos | WOS:000470756000012 | |
dc.identifier.wosquality | Q1 | |
dc.indekslendigikaynak | Web of Science | |
dc.indekslendigikaynak | Scopus | |
dc.indekslendigikaynak | PubMed | |
dc.language.iso | en | |
dc.publisher | Royal Soc Chemistry | |
dc.relation.ispartof | Nanoscale | |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | |
dc.rights | info:eu-repo/semantics/closedAccess | |
dc.snmz | KA_WOS_20250316 | |
dc.subject | Sensitized Solar-Cells | |
dc.subject | Liquid-Phase Exfoliation | |
dc.subject | Charge-Transfer | |
dc.subject | Absorbing Azulenocyanines | |
dc.subject | Thin-Film | |
dc.subject | Graphite | |
dc.subject | Performance | |
dc.subject | Single | |
dc.subject | Spectroscopy | |
dc.subject | Noncovalent | |
dc.title | Azulenocyanines immobilized on graphene; on the way to panchromatic absorption and efficient DSSC blocking layers | |
dc.type | Article |