Carbon quantum dots (CQDs) with heteroatomic surfaces are used for a variety of applications. The present study illustrates the photoluminescence properties of CQDs prepared by hydrothermal method and using egg white proteins as a source of organic precursors in aqueous medium. The colloidal CQD materials were characterized using spectroscopic techniques that dealt with time-resolved photoluminescence measurements at room temperature. The CQD colloids exhibit excitation-dependent luminescence and a moderately long lifetime (greater than 10 ns). Our results indicate that the photoluminescent characteristics of the CQDs could be tuned via regulating hydrothermal synthesis time, supporting CQDs’ potential roles in imaging applications.

Elucidating the time-dependent photoluminescence properties of colloidal carbon dots

255th National Meeting (2018)

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