Hierarchical Aerographite 3D flexible networks hybridized by InP micro/nanostructures for strain sensor applications

Scientific Reports
Irina PlescoIon Tiginyanu

Abstract

In the present work, we report on development of three-dimensional flexible architectures consisting of an extremely porous three-dimensional Aerographite (AG) backbone decorated by InP micro/nanocrystallites grown by a single step hydride vapor phase epitaxy process. The systematic investigation of the hybrid materials by scanning electron microscopy demonstrates a rather uniform spatial distribution of InP crystallites without agglomeration on the surface of Aerographite microtubular structures. X-ray diffraction, transmission electron microscopy and Raman scattering analysis demonstrate that InP crystallites grown on bare Aerographite are of zincblende structure, while a preliminary functionalization of the Aerographite backbone with Au nanodots promotes the formation of crystalline In2O3 nanowires as well as gold-indium oxide core-shell nanostructures. The electromechanical properties of the hybrid AG-InP composite material are shown to be better than those of previously reported bare AG and AG-GaN networks. Robustness, elastic behavior and excellent translation of the mechanical deformation to variations in electrical conductivity highlight the prospects of AG-InP applications in tactile/strain sensors and other device str...Continue Reading

References

Jan 21, 2010·Nano Letters·Mildred S DresselhausRiichiro Saito
Feb 19, 2013·Advanced Materials·Haiyan SunChao Gao
Jun 3, 2016·Nano Letters·Qian GaoChennupati Jagadish
Nov 1, 2017·Nature Communications·Fabian SchüttRainer Adelung

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Methods Mentioned

BETA
electron diffraction
X-ray
Raman
transmission electron microscopy
thermal treatment
scanning electron microscopy

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