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Enhanced Photoluminescence of Crystalline Alq3 Micro-Rods Hybridized with Silver Nanowires

Authors :
Misuk Kim
Jiyoun Kim
Seongcheol Ju
Hyeonwoo Kim
Incheol Jung
Jong Hoon Jung
Gil Sun Lee
Young Ki Hong
Dong Hyuk Park
Kyu-Tae Lee
Source :
Nanomaterials, Vol 13, Iss 5, p 825 (2023)
Publication Year :
2023
Publisher :
MDPI AG, 2023.

Abstract

An enhancement of the local electric field at the metal/dielectric interface of hybrid materials due to the localized surface plasmon resonance (LSPR) phenomenon plays a particularly important role in versatile research fields resulting in a distinct modification of the electrical, as well as optical, properties of the hybrid material. In this paper, we succeeded in visually confirming the LSPR phenomenon in the crystalline tris(8-hydroxyquinoline) aluminum (Alq3) micro-rod (MR) hybridized with silver (Ag) nanowire (NW) in the form of photoluminescence (PL) characteristics. Crystalline Alq3 MRs were prepared by a self-assembly method under the mixed solution of protic and aprotic polar solvents, which could be easily applied to fabricate hybrid Alq3/Ag structures. The hybridization between the crystalline Alq3 MRs and Ag NWs was confirmed by the component analysis of the selected area electronic diffraction attached to high-resolution transmission electron microscope. Nanoscale and solid state PL experiments on the hybrid Alq3/Ag structures using a lab-made laser confocal microscope exhibited a distinct enhancement of the PL intensity (approximately 26-fold), which also supported the LSPR effects between crystalline Alq3 MRs and Ag NWs.

Details

Language :
English
ISSN :
20794991
Volume :
13
Issue :
5
Database :
Directory of Open Access Journals
Journal :
Nanomaterials
Publication Type :
Academic Journal
Accession number :
edsdoj.52b5cdea5b6b4230b523d16d05af2045
Document Type :
article
Full Text :
https://doi.org/10.3390/nano13050825