Abstract
We report a new approach for large-scale alignment of micron-sized J-aggregates of a derivative of porphyrin onto planar glass substrates. We applied a unidirectional nitrogen flow to an aqueous dye drop deposited onto a glass substrate to form an about 5 nm thick film of aligned J-aggregates over macroscopic surface areas up to several millimeters. The inter-aggregate distance is ∼500 nm, and it scales with the nitrogen pressure. We verified the film thickness and J-aggregate alignment using multimodal microscopy and spectroscopy techniques. Our technique is fast, simple, and cost-effective for producing large two-dimensional (2-D) arrays of aligned emitters.
Original language | English |
---|---|
Pages (from-to) | 844-851 |
Number of pages | 8 |
Journal | Langmuir |
Volume | 36 |
Issue number | 4 |
DOIs | |
State | Published - 4 Feb 2020 |
Bibliographical note
Publisher Copyright:Copyright © 2020 American Chemical Society.
Funding
This work was supported by the European Union (H2020, EUREKA! Eurostars E!113216 "NANOSCALE" to A.S. and M.O.). A.S. acknowledges mobility support from the French Ministry of Foreign Affairs (Chateaubriand Senior Fellowship) and the French Agence Nationale de la Recherche (ANR-10-INSB-04-01, grands investissements FranceBioImaging, FBI, to M.O. équipements FranceBioImaging). M.O. and A.S. were supported by the CNRS (LIA France-Israel ImagiNano) and the Region Ile de France (Nanotechnology Excellence Cluster DIM C'Nano). This work was supported by the European Union (H2020, EUREKA! Eurostars E!113216 “NANOSCALE”, to A.S. and M.O.). A.S. acknowledges mobility support from the French Ministry of Foreign Affairs (Chateaubriand Senior Fellowship) and the French Agence Nationale de la Recherche (ANR-10-INSB-04-01, grands investissements FranceBioImaging, FBI, to M.O. équipements FranceBioImaging). M.O. and A.S. were supported by the CNRS (LIA France-Israel ImagiNano) and the Region Ile de France (Nanotechnology Excellence Cluster DIM C’Nano).
Funders | Funder number |
---|---|
Region Ile de France | |
Horizon 2020 Framework Programme | 113216 |
Federal Bureau of Investigation | |
European Commission | |
Agence Nationale de la Recherche | ANR-10-INSB-04-01 |
Ministère des Affaires Etrangères | |
Centre National de la Recherche Scientifique |