scholarly journals The fabrication of high sensitivity gold nanorod H2S gas sensors utilizing the highly uniform anodic aluminum oxide template

AIP Advances ◽  
2016 ◽  
Vol 6 (12) ◽  
pp. 125002 ◽  
Author(s):  
Chien-Yu Li ◽  
Ciao-Yu Li ◽  
You-Lin Wu ◽  
Chung-Ping Hsu ◽  
Ming-Ching Lee ◽  
...  
2020 ◽  
Vol 9 ◽  
pp. 100071
Author(s):  
Takaki Okamoto ◽  
Tomohiro Shimizu ◽  
Koichi Takase ◽  
Takeshi Ito ◽  
Shoso Shingubara

2018 ◽  
Vol 32 (16) ◽  
pp. 1850199 ◽  
Author(s):  
Degao Lan ◽  
Xiaofeng Zhao ◽  
Fei Wang ◽  
Chunpeng Ai ◽  
Dianzhong Wen ◽  
...  

The humidity sensor based on silicon substrate is presented in this paper, which consists of anodic aluminum oxide (AAO) film and interdigitated electrodes. By using electro-chemical oxidizing technique, AAO film with high porosity is fabricated on the silicon substrate. Under optimal oxidization condition, pore diameter of 37–79 nm and depth about [Formula: see text]m is achieved. Interdigitated electrodes are fabricated on the top of AAO film by vacuum evaporation deposition method. The results show that the sensor has different nonlinear response in whole range of relative humidity (RH). Moreover, it has almost linear relationship between the capacitance and RH at high RH from 75% to 95%. The highest sensitivity is obtained 613 pF/%RH at 1 kHz, which is much higher than other frequencies.


2013 ◽  
Vol 421 ◽  
pp. 319-323
Author(s):  
Jafar Khan Kasi ◽  
Ajab Khan Kasi ◽  
Muzamil Bokhari ◽  
Nitin Afzulpurkar

Carbon nanotube (CNT) is one of the most attractive nanomaterials which may be used in many potential applications of nanotechnology due to its excellent mechanical, electrical and thermal properties. We demonstrated the fabrication of carbon nanotube at the surface of anodic aluminum oxide (AAO) membrane by chemical vapor deposition (CVD) method. Acetylene was used as a hydrocarbon source and Fe as catalyst. CNT was synthesized at different temperature. The iron catalyst was confined in the holes of the AAO membrane. A variety of carbon structures such as nanotubes, helices, spiral, and hook-like curved shapes in the range of micrometer were synthesized. High graphitic multiwall carbon nanotube (MWCNT) was found at 700-750°C temperature.


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