Carbon Nanodots: Toward a Comprehensive Understanding of Their Photoluminescence

Strauß V, Margraf J, Dolle C, Butz B, Nacken T, Walter J, Bauer W, Peukert W, Spiecker E, Clark T, Guldi DM (2014)

Publication Type: Journal article

Publication year: 2014

Journal

Journal of the American Chemical Society American Chemical Society

Publisher: American Chemical Society

Book Volume: 136

Pages Range: 17308--17316

Volume: 136

Issue: 49

Journal Issue: 49

DOI: 10.1021/ja510183c

Abstract

We report the characterization of carbon nanodots (CNDs) synthesized under mild and controlled conditions, that is, in a microwave reactor. The CNDs thus synthesized exhibit homogeneous and narrowly dispersed optical properties. They are thus well suited as a testbed for studies of the photophysics of carbon-based nanoscopic emitters. In addition to steady-state investigations, time-correlated single-photon counting, fluorescence up-conversion, and transient pump probe absorption spectroscopy were used to elucidate the excited-state dynamics. Moreover, quenching the CND-based emission with electron donors or acceptors helped shed light on the nature of individual states. Density functional theory and semiempirical configuration-interaction calculations on model systems helped understand the fundamental structure-property relationships for this novel type of material.

Authors with CRIS profile

Volker Strauß Lehrstuhl für Physikalische Chemie I Johannes Margraf Lehrstuhl für Physikalische Chemie I Christian Dolle Sonderforschungsbereich 953/3 Synthetische Kohlenstoffallotrope Benjamin Butz Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung) Thomas Nacken Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik Johannes Walter Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik Walter Bauer Lehrstuhl für Organische Chemie II Wolfgang Peukert Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik Erdmann Spiecker Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung) Timothy Clark Computer-Chemie-Centrum Dirk Michael Guldi Lehrstuhl für Physikalische Chemie I

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)

How to cite

APA:

Strauß, V., Margraf, J., Dolle, C., Butz, B., Nacken, T., Walter, J.,... Guldi, D.M. (2014). Carbon Nanodots: Toward a Comprehensive Understanding of Their Photoluminescence. Journal of the American Chemical Society, 136(49), 17308--17316. https://dx.doi.org/10.1021/ja510183c

MLA:

Strauß, Volker, et al. "Carbon Nanodots: Toward a Comprehensive Understanding of Their Photoluminescence." Journal of the American Chemical Society 136.49 (2014): 17308--17316.

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