TY - JOUR
T1 - Metal oxide patterns of one-dimensional nanofibers
T2 - On-demand, direct-write fabrication, and application as a novel platform for gas detection
AU - Lim, Kyeorei
AU - Jo, Young Moo
AU - Yoon, Ji Wook
AU - Lee, Jong Heun
N1 - Funding Information:
This research was supported by the Basic Research Laboratory of the NRF funded by the Korean government (2018R1A4A1022647).
Publisher Copyright:
© 2019 The Royal Society of Chemistry.
PY - 2019
Y1 - 2019
N2 - To organize one-dimensional (1D) metal oxides into highly ordered and controllable architectures on the required regions remains challenging. Herein, we report for the first time the facile, versatile, and on-demand fabrication of metal oxide patterns comprising 1D nanofibers via near-field electrospinning (NFES), which have a wide variety of potential applications in sensors, optoelectronic circuits, and functional nanoelectronics. Grids, diamonds, and hexagrams of In2O3, Co3O4, and NiO nanofibers are first demonstrated, and the underlying mechanisms for fiber formation are systematically investigated with respect to the experimental parameters of NFES. Furthermore, we propose the nano-architectures as a novel gas sensing platform that exhibits an unprecedentedly high gas response (resistance ratio, ST = 239, T: Trimethylamine) and selectivity (STSE-1 > 7, E: Ethanol) to 5 ppm trimethylamine compared with thin film counterparts (ST = 24, STSE-1 ≈ 1). The research provides a vital breakthrough to fabricate metal oxide nano-architectures of 1D nanofibers and new platforms to design next-generation functional nanodevices for a wide range of emerging applications.
AB - To organize one-dimensional (1D) metal oxides into highly ordered and controllable architectures on the required regions remains challenging. Herein, we report for the first time the facile, versatile, and on-demand fabrication of metal oxide patterns comprising 1D nanofibers via near-field electrospinning (NFES), which have a wide variety of potential applications in sensors, optoelectronic circuits, and functional nanoelectronics. Grids, diamonds, and hexagrams of In2O3, Co3O4, and NiO nanofibers are first demonstrated, and the underlying mechanisms for fiber formation are systematically investigated with respect to the experimental parameters of NFES. Furthermore, we propose the nano-architectures as a novel gas sensing platform that exhibits an unprecedentedly high gas response (resistance ratio, ST = 239, T: Trimethylamine) and selectivity (STSE-1 > 7, E: Ethanol) to 5 ppm trimethylamine compared with thin film counterparts (ST = 24, STSE-1 ≈ 1). The research provides a vital breakthrough to fabricate metal oxide nano-architectures of 1D nanofibers and new platforms to design next-generation functional nanodevices for a wide range of emerging applications.
UR - http://www.scopus.com/inward/record.url?scp=85074682695&partnerID=8YFLogxK
U2 - 10.1039/c9ta09708b
DO - 10.1039/c9ta09708b
M3 - Article
AN - SCOPUS:85074682695
VL - 7
SP - 24919
EP - 24928
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
SN - 2050-7488
IS - 43
ER -
