Universität zu Köln

Lu, Mo, Pfeiffer, Markus, Senkovskiy, Boris, V, Haberer, Danny, Hertel, Dirk, Meerholz, Klaus, Fischer, Felix R., Ando, Yoichi, Grueneis, Alexander and Lindfors, Klas ORCID: 0000-0002-6482-5605 (2020). Probing the origin of photoluminescence blinking in graphene nanoribbons: Influence of plasmonic field enhancement. 2D Mater., 7 (4). BRISTOL: IOP PUBLISHING LTD. ISSN 2053-1583

Full text not available from this repository.

Abstract

The photoluminescence from aligned 7-atom wide armchair-edge graphene nanoribbons coupled to plasmonic nanoantennas was recently observed to display blinking. Photoluminescence blinking is a hallmark of emission from single quantum emitters. Here we explore the origin of the blinking. We study the influence of the local field enhancement in the vicinity of nanoantennas on the photoluminescence blinking. We observe a clear correlation between the blinking amplitudes and the plasmonic enhancement. For non-resonant metal nanostructures the blinking vanishes almost completely. Our results allow us to conclude that the blinking is an intrinsic feature of the emission from the graphene nanoribbons. This is in contrast to the case of single-molecule surface-enhanced Raman scattering, where it is known that ballistic charge transfer between plasmonic nanoparticles and the molecule under study critically contributes to the blinking.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Lu, Mo UNSPECIFIED UNSPECIFIED UNSPECIFIED Pfeiffer, Markus UNSPECIFIED UNSPECIFIED UNSPECIFIED Senkovskiy, Boris, V UNSPECIFIED UNSPECIFIED UNSPECIFIED Haberer, Danny UNSPECIFIED UNSPECIFIED UNSPECIFIED Hertel, Dirk UNSPECIFIED UNSPECIFIED UNSPECIFIED Meerholz, Klaus UNSPECIFIED UNSPECIFIED UNSPECIFIED Fischer, Felix R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ando, Yoichi UNSPECIFIED UNSPECIFIED UNSPECIFIED Grueneis, Alexander UNSPECIFIED UNSPECIFIED UNSPECIFIED Lindfors, Klas UNSPECIFIED orcid.org/0000-0002-6482-5605 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-317840
DOI:	10.1088/2053-1583/ab9ea3
Journal or Publication Title:	2D Mater.
Volume:	7
Number:	4
Date:	2020
Publisher:	IOP PUBLISHING LTD
Place of Publication:	BRISTOL
ISSN:	2053-1583
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Chemistry > Institute of Physical Chemistry
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language ON-SURFACE SYNTHESIS; SINGLE-MOLECULE; RAMAN-SPECTROSCOPY; EDGE STATE; FLUORESCENCE; NANOANTENNA; FABRICATION; POSITION Multiple languages Materials Science, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/31784