Bright, stable, and tunable solid-state luminescence of carbon nanodot organogels

Literature Information

Publication Date 2018-06-11
DOI 10.1039/C8CP02069H
Impact Factor 3.676
Authors

Lizhe Liu, Li Wang, Guangsheng Luo, Chunlan Mo, Chenliang Chang


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Abstract

Despite the sustained enthusiastic interest in fluorescent carbon nanodots (FCNDs), it is still challenging to achieve bright and widely tunable solid-state luminescence. Herein, organogels embedded with FCNDs were simply synthesized via a one-pot pyrolysis method. Subsequently, the excitation of a single ultraviolet (UV) excitation line results in tunable solid-state luminescence ranging from blue to red with quantum yields (QYs) >14%. In this study, N and S elements were co-doped to regulate the aggregation of FCNDs, which consequently modulated the Stokes shift of the photoluminescence (PL) by managing the degree of photon reabsorption. Notably, without compact aggregations, the dispersions of FCNDs in the organogel matrix indeed render bright fluorescence, which results from the suppression of excessive photon reabsorption and nonradiative resonant energy transfer (NRET).

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Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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