Lei Zhang (Avtor), Xiaolan Zhong (Avtor), Egon Pavlica (Avtor), Songlin Li (Avtor), Alexander Klekachev (Avtor), Gvido Bratina (Avtor), Thomas W. Ebbesen (Avtor), Emanuele Orgiu (Avtor), Paolo Samorì (Avtor)

Povzetek

Supramolecular organic nanowires are ideal nanostructures for optoelectronics because they exhibit both efficient exciton generation as a result of their high absorption coefficient and remarkable light sensitivity due to the low number of grain boundaries and high surface-to-volume ratio. To harvest photocurrent directly from supramolecular nanowires it is necessary to wire them up with nanoelectrodes that possess different work functions. However, devising strategies that can connect multiple nanowires at the same time has been challenging. Here, we report a general approach to simultaneously integrate hundreds of supramolecular nanowires of N,N′-dioctyl-3,4,9,10-perylenedicarboximide (PTCDI-C8) in a hexagonal nanomesh scaffold with asymmetric nanoelectrodes. Optimized PTCDI-C8 nanowire photovoltaic devices exhibit a signal-to-noise ratio approaching 107, a photoresponse time as fast as 10 ns and an external quantum efficiency >55%. This nanomesh scaffold can also be used to investigate the fundamental mechanism of photoelectrical conversion in other low-dimensional semiconducting nanostructures.

Ključne besede

fotodetektorji;organski polprevodniki;fotoprevodnost;organski kristali;elektronske komponente;nanožice;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UNG - Univerza v Novi Gorici
UDK: 53
COBISS: 4524283 Povezava se bo odprla v novem oknu
ISSN: 1748-3387
Matična publikacija: Nature nanotechnology
Št. ogledov: 4736
Št. prenosov: 0
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

URN: URN:SI:UNG
Vrsta dela (COBISS): Delo ni kategorizirano
Strani: str. 900-906
Letnik: ǂVol. ǂ11
Zvezek: ǂno. ǂ10
Čas izdaje: Jul. 2016
DOI: 10.1038/nnano.2016.125
ID: 9175689