Grants and Contracts Details
Description
Fluorescent carbon dots (FCDs) have recently received significant attention because of their attractive
characteristics chemical inertness, biocompatibility and low toxicity. They are considered as promising materials for
photocatalysis, sensing, bio-imaging, and photovoltaic applications. A confined, conjugated, sp2-bonded carbon core
surrounded by a shell of chemical functional groups can produce bright, photostable, and tunable
photoluminescence. While research is actively being conducted to promote brightness and modulate the optical
properties of FCDs produced by a variety of synthetic approaches, there is a significant lack of fundamental
knowledge about detailed emission mechanism and energy-transfer pathway. Currently, most of the spectroscopic
studies on FCDs have been conducted in ensemble. The detailed information about photophysics and energytransfer
channels are largely obscured in ensemble spectroscopic studies due to a chemical and structural
inhomogeneity and an ensemble averaging effect. In this proposal, I propose a new spectroscopic approach to
research on fluorescent carbon nanodots. Optical properties of FCDs will be investigated at the single-particle level
together with ensemble studies. The single-particle fluorescence study will unravel the complexity of the system
and thus will allow for the investigation of complicated photophysical and photochemical processes. We will also
develop a reliable synthetic route to controlling the size, chemical structure, and surface chemistry of FCNs by
means of chemical, electrochemical oxidation/reduction and chemical doping methods.
Status | Finished |
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Effective start/end date | 7/1/14 → 12/31/15 |
Funding
- KY Science and Technology Co Inc: $30,000.00
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