Synthesis and Gas Sensing Properties of TiO2–ZnO Core-Shell Nanofibers |
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Authors: | Jae Young Park Sun-Woo Choi Jun-Won Lee Chongmu Lee Sang Sub Kim |
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Affiliation: | School of Materials Science and Engineering, Inha University, Incheon 402-751, Korea |
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Abstract: | We fabricated TiO2–ZnO core-shell nanofibers via a novel two-step process. In the first step, the TiO2 core nanofibers were synthesized by electrospinning. Subsequently, the ZnO shell layers were grown in a controlled manner using atomic layer deposition. The methodology proposed in this work is expected to be one of most suitable methods for preparing various kinds of oxide core-shell nanofibers or nanowires. We investigated the O2 sensing properties of the synthesized core-shell nanofibers. Good sensitivity and dynamic repeatability were observed for the sensor, demonstrating that the core-shell nanofibers hold promise for the realization of sensitive and reliable chemical sensors. |
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