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Issue 47, 2018
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Engineering the carrier dynamics of g-C3N4 by rolling up planar sheets into nanotubes via ultrasonic cavitation

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Abstract

Rolling up 2D atomic layered materials into 1D nanotubes gives rise to fascinating properties due to their lower dimension, higher anisotropy, and strain effects. In this work, the curving of 2D graphitic C3N4 (g-C3N4) sheets into 1D nanotubes is demonstrated for the first time through simple and clean ultrasonic treatments. The steady-state optical transitions are slightly enhanced while the localized trapping of excited carriers is considerably suppressed after rolling up the planar sheets into nanotubes. The mechanical method to modulate the dimension scarcely changes the chemical structures, enabling the pure investigation on shape-induced physical effects. As a proof of principle, this work confirms the dynamics of excited carriers, and the photoelectronic properties of 2D semiconductors can be significantly engineered by a simple morphological evolution.

Graphical abstract: Engineering the carrier dynamics of g-C3N4 by rolling up planar sheets into nanotubes via ultrasonic cavitation

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Supplementary files

Article information


Submitted
14 Aug 2018
Accepted
05 Nov 2018
First published
06 Nov 2018

Nanoscale, 2018,10, 22448-22455
Article type
Paper

Engineering the carrier dynamics of g-C3N4 by rolling up planar sheets into nanotubes via ultrasonic cavitation

Z. Gan, L. Liu, P. Pan, Y. Lin, J. Shen and B. Jia, Nanoscale, 2018, 10, 22448
DOI: 10.1039/C8NR06560H

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