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Issue 5, 2019
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Photo-to-electricity generation of aligned carbon nanotubes in water

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Abstract

The photovoltaic effect occurs at the interface between two different types of semiconductors that are joined together to create a p–n junction, and it has been explored as a basic principle to harvest solar energy to generate electricity. The active materials are typically protected from water for stable performances, and the photovoltaic effect is observed in photovoltaic materials with appropriate energy bands and interfaces. Here we have discovered another new and general photo-to-electricity phenomenon in semiconducting materials in water. The photo-to-electricity conversion could be realized by using the identical type of semiconductor as the active material. Aligned carbon nanotube sheets were demonstrated to output high open-circuit voltages up to 0.48 V. Due to the intrinsic flexibility of the designed carbon nanotube sheets, the output voltage could be well maintained after deforming for 8000 cycles.

Graphical abstract: Photo-to-electricity generation of aligned carbon nanotubes in water

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Supplementary files

Article information


Submitted
11 Nov 2018
Accepted
03 Jan 2019
First published
03 Jan 2019

J. Mater. Chem. A, 2019,7, 1996-2001
Article type
Communication

Photo-to-electricity generation of aligned carbon nanotubes in water

Y. Hu, S. He, X. Xu, L. Zhang, Y. Xu, J. Zhang, P. Liu, Y. Wen, F. Ni, M. Jia, B. Zhang, X. Sun, P. Chen and H. Peng, J. Mater. Chem. A, 2019, 7, 1996
DOI: 10.1039/C8TA10847A

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