Miniaturized pH Sensors Based on Zinc Oxide Nanotubes/Nanorods.
Miniaturized pH Sensors Based on Zinc Oxide Nanotubes/Nanorods.
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DOI:
10.3390/s91108911
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发表时间:
2009
期刊:
影响因子:
--
通讯作者:
Willander M
中科院分区:
文献类型:
--
作者:
Fulati A;Ali SM;Riaz M;Amin G;Nur O;Willander M
ZnO nanotubes and nanorods grown on gold thin film were used to create pH sensor devices. The developed ZnO nanotube and nanorod pH sensors display good reproducibility, repeatability and long-term stability and exhibit a pH-dependent electrochemical potential difference versus an Ag/AgCl reference electrode over a large dynamic pH range. We found the ZnO nanotubes provide sensitivity as high as twice that of the ZnO nanorods, which can be ascribed to the fact that small dimensional ZnO nanotubes have a higher level of surface and subsurface oxygen vacancies and provide a larger effective surface area with higher surface-to-volume ratio as compared to ZnO nanorods, thus affording the ZnO nanotube pH sensor a higher sensitivity. Experimental results indicate ZnO nanotubes can be used in pH sensor applications with improved performance. Moreover, the ZnO nanotube arrays may find potential application as a novel material for measurements of intracellular biochemical species within single living cells.
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影响因子:
4
作者:
Batista, PD;Mulato, M
通讯作者:
Mulato, M
影响因子:
3.2
作者:
Al-Hilli, Safaa M.;Willander, M.;Stralfors, Peter
通讯作者:
Stralfors, Peter
影响因子:
8.6
作者:
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通讯作者:
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影响因子:
8.4
作者:
Kong, Tao;Chen, Yang;Wang, Xiaoping
通讯作者:
Wang, Xiaoping
DOI:
10.1016/j.mseb.2007.10.004
发表时间:
2007-12-20
期刊:
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY
影响因子:
--
作者:
Lupan, Oleg;Chow, Lee;Heinrich, Helge
通讯作者:
Heinrich, Helge