Enhanced Emission and Its Switching in Fluorescent Organic Nanoparticles
Top Cited Papers
- 8 November 2002
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 124 (48), 14410-14415
- https://doi.org/10.1021/ja0269082
Abstract
A new class of organic nanoparticles (CN-MBE nanoparticles) with a mean diameter of ca. 30−40 nm, which exhibit a strongly enhanced fluorescence emission, were prepared by a simple reprecipitation method. CN-MBE (1-cyano-trans-1,2-bis-(4‘-methylbiphenyl)ethylene) is very weakly fluorescent in solution, but the intensity is increased by almost 700 times in the nanoparticles. Enhanced emission in CN-MBE nanoparticles is attributed to the synergetic effect of intramolecular planarization and J-type aggregate formation (restricted excimer formation) in nanopaticles. On/off fluorescence switching for organic vapor was demonstrated with CN-MBE nanoparticles.Keywords
This publication has 32 references indexed in Scilit:
- Aggregation of Pseudoisocyanine Iodide in Cellulose Acetate Films: Structural Characterization by FTIRLangmuir, 2000
- Photophysical Consequences of Conformation and Aggregation in Dilute Solutions of π-Conjugated OligomersLangmuir, 1999
- Size and Form Control of Titanylphthalocyanine Microcrystals by Supercritical Fluid Crystallization MethodMolecular Crystals and Liquid Crystals, 1998
- Colloidal Metal−Insulator−Metal Ensemble Chemiresistor SensorAnalytical Chemistry, 1998
- Color Variation in Highly Oriented Dye Layers by Polymorphism of Dye AggregatesAdvanced Materials, 1998
- Optical Properties of Perylene MicrocrystalsMolecular Crystals and Liquid Crystals, 1997
- Semiconductor Clusters, Nanocrystals, and Quantum DotsScience, 1996
- Light-Induced Redox Reactions in Nanocrystalline SystemsChemical Reviews, 1995
- X-ray diffraction study of indium phosphate dihydrate and isostructural thallic compoundsActa Crystallographica, 1961
- The Beilby Layer on Non-MetalsNature, 1936