scholarly journals An easy method of preparing ozone gas sensors based on ZnO nanorods

RSC Advances ◽  
2015 ◽  
Vol 5 (25) ◽  
pp. 19528-19533 ◽  
Author(s):  
Ariadne C. Catto ◽  
Luís F. da Silva ◽  
Caue Ribeiro ◽  
Sandrine Bernardini ◽  
Khalifa Aguir ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Gas Sensor ◽  
Gas Sensors ◽  
Zno Nanorods ◽  
Zno Nanorod ◽  
Easy Method ◽  
One Dimensional

One-dimensional (1D) ZnO nanorod-like structures were successfully grown via a hydrothermal method to be used as an ozone gas sensor.

Phosphorus-Doped p-Type ZnO Nanorods and ZnO Nanorod p−n Homojunction LED Fabricated by Hydrothermal Method

2009 ◽  
Vol 113 (50) ◽  
pp. 21208-21212 ◽  
Author(s):  
Xuan Fang ◽  
Jinhua Li ◽  
Dongxu Zhao ◽  
Dezhen Shen ◽  
Binghui Li ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Zno Nanorods ◽  
Zno Nanorod ◽  
P Type ◽  
Phosphorus Doped

Fabrication of ZnO Nanorod for Room Temperature NO Gas Sensor

2014 ◽  
Vol 1043 ◽  
pp. 96-100 ◽  
Author(s):  
Sin Tee Tan ◽  
Muhammad Yahaya ◽  
Chun Hui Tan ◽  
Chi Chin Yap ◽  
Akrajas Ali Umar ◽  
...  
Keyword(s):  
Room Temperature ◽  
Low Cost ◽  
Zno Nanorods ◽  
High Sensitivity ◽  
Zno Nanorod ◽  
One Dimensional ◽  
Nanorods Array ◽  
Direct Energy ◽  
Hydrothermal Approach ◽  
No Sensor

One dimensional ZnO nanorod has been extensively studied in sensor application due to its unique properties in direct energy band gap and high binding energy. In this report, ZnO nanorod arrays were synthesized via hydrothermal approach. Highly oriented (002) nanorods array with diameter of (22.42 ± 1.40) nm was successfully grown on the quartz surface. A low cost and room temperature optical based NO sensor was introduced. ZnO nanorods array show a high sensitivity upon the NO gas which is 20.1 % within 3 minutes. This newly established method can be potentially used in detection of other toxicity gas.

A MEMS-Based Ionization Gas Sensor with ZnO Nanorods Coated Distributed Micro-Discharge Structure

2014 ◽  
Vol 551 ◽  
pp. 460-465
Author(s):  
Mao Bo Fang ◽  
Xiao Lin Zhao ◽  
Jian Hua Li ◽  
Zi Wang ◽  
Yan Fang Wang ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Gas Sensors ◽  
Zno Nanorods ◽  
Polarization Structure ◽  
Sensor Device ◽  
Discharge Structure ◽  
Mems Technology ◽  
Anode Electrode ◽  
Good Repeatability ◽  
Structure Array

A kind of ionization gas sensor based on the polarization structure was designed and manufactured by MEMS technology. The gas sensor device consists of 3 main parts: the anode electrode, the cathode and the distributed polarization structure array which lie between the former two parts. All parts were coated with ZnO nanorods by a two-step hydrothermal method. Different concentration acetone gas was tested using the device. The results support that the ionization gas sensors exhibit reasonable sensitivity and good repeatability at the applied voltages lower than 4V.

Synthesis and fast-response of a photodetector of hydrothermally grown ZnO nanorods through the use of a graphene oxide/ZnO seed layer

RSC Advances ◽  
2015 ◽  
Vol 5 (114) ◽  
pp. 94222-94226 ◽  
Author(s):  
Giwoong Nam ◽  
Jae-Young Leem
Keyword(s):  
Graphene Oxide ◽  
Hydrothermal Method ◽  
Seed Layer ◽  
Zno Nanorods ◽  
Fast Response ◽  
Zno Nanorod ◽  
Uv Detector

We used a hydrothermal method combined with a graphene oxide (GO)/ZnO seed layer to fabricate a ZnO nanorod based fast-response UV detector.

Flat-Type Gas Sensors Based on ZnO Nanorod Arrays

2020 ◽  
Vol 20 (12) ◽  
pp. 7800-7807
Author(s):  
Yue-Wu Pan ◽  
Shuang-Jiao Peng ◽  
Ya-Lei Ma ◽  
Pei-Jiang CaO ◽  
Feng Hu
Keyword(s):  
Gas Sensors ◽  
Zno Nanorods ◽  
Areal Density ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
Gas Sensitivity ◽  
Axis Orientation ◽  
Vacancy Defects ◽  
Flat Type

ZnO seed layers were deposited on silicon and sapphire substrates by the pulsed laser deposition (PLD) method, and ZnO nanorod arrays with different orientation degrees were grown using the chemical vapor deposition (CVD) method. Flat-type gas sensors based on the ZnO nanorod arrays were fabricated, and their gas sensitivity properties were studied. The ZnO seed layer with a thickness of approximately 450 nm exhibits high c-axis orientation and possesses few defects. The ZnO nanorods fabricated on both of the substrates grow along the [0001] direction and contain a large number of oxygen vacancy defects. These nanorods have lengths of 8~10 μm and diameters of 200~500 nm. The ZnO nanorods grown on the silicon substrate are perpendicular to the surface of the substrate, and their areal density is approximately 3.0×108/cm2, while those grown on the sapphire substrate exhibit a lower orientation degree, and their areal density is approximately 0.9×108/cm2. The largest response of the gas sensor for gaseous alcohol reaches 48.2, and the optimal operating temperature for all of the sensors is approximately 280 °C. The gas sensitivity property of the silicon-based sensor is superior to that of the sapphire-based sensor, and the corresponding sensing mechanism is discussed.

Morphology controlled growth of ZnAl-layered double hydroxide and ZnO nanorod hybrid nanostructures by solution method

RSC Advances ◽  
2015 ◽  
Vol 5 (74) ◽  
pp. 59823-59829 ◽  
Author(s):  
Seong-Ho Baek ◽  
Gwang-Hee Nam ◽  
Il-Kyu Park
Keyword(s):  
Hydrothermal Method ◽  
Layered Double Hydroxide ◽  
Seed Layer ◽  
Solution Method ◽  
Morphological Evolution ◽  
Zno Nanorods ◽  
Hybrid Nanostructures ◽  
Controlled Growth ◽  
Zno Nanorod ◽  
Double Hydroxide

Morphological evolution of ZnAl-based hybrid nanostructures from ZnAl layered double hydroxide to ZnO nanorods grown by a hydrothermal method depending on the thickness of the Al2O3/ZnO double seed layer.

scholarly journals Effects of GaxZn1−xO nanorods on the photoelectric properties of n-ZnO nanorods/p-GaN heterojunction light-emitting diodes

RSC Advances ◽  
2017 ◽  
Vol 7 (78) ◽  
pp. 49613-49617 ◽  
Author(s):  
Rui Li ◽  
Chunyan Yu ◽  
Hailiang Dong ◽  
Wei Jia ◽  
Tianbao Li ◽  
...  
Keyword(s):  
Low Temperature ◽  
Hydrothermal Method ◽  
Light Emitting Diodes ◽  
Zno Nanorods ◽  
Nanorod Array ◽  
Zno Nanorod ◽  
Light Emitting ◽  
Photoelectric Properties ◽  
Doped Zno ◽  
Zno Nanorod Array

A Ga-doped ZnO nanorod array has been synthesized on a p-GaN/Al2O3 substrate by a hydrothermal method at low temperature.

scholarly journals SYNTHESIS OF ZnO NANORODS BY HYDROTHERMAL METHOD FOR GAS SENSOR APPLICATIONS

2012 ◽  
Vol 5 (1) ◽  
pp. 57-70 ◽  
Author(s):  
Sarika D. Shinde ◽  
G. E. Patil ◽  
D. D. Kajale ◽  
D. V. Ahire ◽  
V. B. Gaikwad ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Gas Sensor ◽  
Zno Nanorods ◽  
Sensor Applications
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