ZnO tetrapods designed as multiterminal sensors to distinguish false responses and increase sensitivity.
Individual zinc oxide tetrapods were designed as multiterminal sensors by the e-beam lithography method. Different from double-terminal sensors, these sensors can give multiple responses to a single signal at the same time. The designed tetrapod devices were employed to detect light with different wavelength. The results indicate that they are remarkable optoelectronic devices, sensitive to ultraviolet light, and have advantages on distinguishing noises and increasing sensitivity. This should be helpful for weak signal measurements of nanodevices.
Zhang
Zengxing
Z
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China. zhengxingzhan@hotmail.com
Sun
Lianfeng
L
Zhao
Yuanchun
Y
Liu
Zheng
Z
Liu
Dongfang
D
Cao
Li
L
Zou
Binsuo
B
Zhou
Weiya
W
Gu
Changzhi
C
Xie
Sishen
S
D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008839:Microelectrodes; D049329:Nanostructures / Q000737:chemistry* / Q000528:radiation effects*; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods; D055095:Optics and Photonics / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014159:Transducers; D015034:Zinc Oxide / Q000737:chemistry* / Q000528:radiation effects*
D015034:Zinc Oxide