Ultrasound-induced transformation of fluorescent organic nanoparticles from a molecular rotor into rhomboidal nanocrystals with enhanced emission

König M, Torres T, Barone V, Brancato G, Guldi DM, Bottari G (2014)

Publication Type: Journal article

Publication year: 2014

Journal

Chemical Communications Royal Society of Chemistry

Book Volume: 50

Pages Range: 12955-12958

Journal Issue: 85

DOI: 10.1039/c4cc05531d

Abstract

Fluorescent organic nanoparticles (FONs) based on aggregation-induced emission (AIE) are receiving increasing attention owing to their simple preparation, enhanced optical properties, and a wide range of applications. Therefore, finding simple methods to tune the structural and emissive properties of FONs is highly desirable. In this context, we discuss the preparation of highly emissive, amorphous AIE spherical nanoparticles based on a structurally-simple molecular rotor and their sonochemical transformation into rhomboidal nanocrystals. Interestingly, the ultrasound-induced modification of the morphology is accompanied by a remarkable enhancement in the stability and emission of the resulting nanocrystals. Detailed characterization of both spherical and rhomboidal nanoparticles was carried out by means of several microscopic, crystallographic, and spectroscopic techniques as well as quantum mechanical calculations. In a nutshell, this work provides a unique example of the ultrasound-induced switching of morphology, stability, and emission in FONs. © 2014 Partner Organisations.

Authors with CRIS profile

Matthias König Lehrstuhl für Physikalische Chemie I Dirk Michael Guldi Lehrstuhl für Physikalische Chemie I

Involved external institutions

Universidad Autónoma de Madrid (UAM) ES Spain (ES) Scuola Normale Superiore di Pisa (SNS) IT Italy (IT)

How to cite

APA:

König, M., Torres, T., Barone, V., Brancato, G., Guldi, D.M., & Bottari, G. (2014). Ultrasound-induced transformation of fluorescent organic nanoparticles from a molecular rotor into rhomboidal nanocrystals with enhanced emission. Chemical Communications, 50(85), 12955-12958. https://doi.org/10.1039/c4cc05531d

MLA:

König, Matthias, et al. "Ultrasound-induced transformation of fluorescent organic nanoparticles from a molecular rotor into rhomboidal nanocrystals with enhanced emission." Chemical Communications 50.85 (2014): 12955-12958.

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