Fabrication and characterization of a highly sensitive hydroquinone chemical sensor based on iron-doped ZnO nanorods

2015 ◽  
Vol 44 (48) ◽  
pp. 21081-21087 ◽  
Author(s):  
Ahmad Umar ◽  
Ali Al-Hajry ◽  
Rafiq Ahmad ◽  
S. G. Ansari ◽  
Mohammed Sultan Al-Assiri ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Chemical Sensor ◽  
Zno Nanorods ◽  
Screen Printed Electrode ◽  
Highly Sensitive ◽  
Iron Doped ◽  
Doped Zno ◽  
Fabrication And Characterization ◽  
Screen Printed

Herein, we report the development of a simple and highly sensitive hydroquinone (HQ) chemical sensor based on an electrochemically activated iron-doped zinc oxide nanorod modified screen-printed electrode.

scholarly journals Fabrication and Characterization of Highly Sensitive Acetone Chemical Sensor Based on ZnO Nanoballs

Materials ◽  
2017 ◽  
Vol 10 (7) ◽  
pp. 799 ◽  
Author(s):  
Qu Zhou ◽  
ChangXiang Hong ◽  
Yao Yao ◽  
Ahmed Ibrahim ◽  
Lingna Xu ◽  
...  
Keyword(s):  
Chemical Sensor ◽  
Highly Sensitive ◽  
Fabrication And Characterization

Highly Sensitive Picric Acid Chemical Sensor Based on Samarium (Sm) Doped ZnO Nanorods

2019 ◽  
Vol 19 (6) ◽  
pp. 3637-3642 ◽  
Author(s):  
Yas Al-Hadeethi ◽  
Ahmad Umar ◽  
Kulvinder Singh ◽  
Ahmed A Ibrahim ◽  
Saleh. H Al-Heniti ◽  
...  
Keyword(s):  
Large Scale ◽  
Chemical Sensor ◽  
Limit Of Detection ◽  
Picric Acid ◽  
Zno Nanorods ◽  
Hydrothermal Process ◽  
High Sensitivity ◽  
Highly Sensitive ◽  
Doped Zno ◽  
Facile Hydrothermal Process

Herein, we report the synthesis, characterization and picric acid chemical sensing application of samarium (Sm) doped ZnO nanorods. The Sm-doped ZnO nanorods were synthesized by facile hydrothermal process and characterized using various analytical methods which confirmed the large-scale synthesis and wurtzite hexagonal crystal structure for the synthesized nanorods. The doping of Sm ions in the lattices of the synthesized nanorods was evaluated by the energy dispersive X-ray spectroscopy (EDS). The synthesized Sm-doped ZnO nanorods were used as potential scaffold to fabricate high sensitive and reproducible picric acid chemical sensor based on I–V technique. The fabricated picric acid chemical sensor based on Sm-doped ZnO nanorods exhibited a high sensitivity of 213.9 mA mM−1 cm−2 with the limit of detection of ∼0.228 mM and correlation coefficient of R═0.9889. The obtained results revealed that the facile grown Sm-doped ZnO nanorods can efficiently be used to fabricate high sensitive and reproducible chemical sensors.

Fabrication and characterization of homostructured photodiodes with Li-doped ZnO nanorods

2020 ◽  
Author(s):  
Chiung-Hsien Huang ◽  
Yen-Lin Chu ◽  
Liang-Wen Ji ◽  
I-Tseng Tang ◽  
Tung-Te Chu ◽  
...  
Keyword(s):  
Zno Nanorods ◽  
Doped Zno ◽  
Fabrication And Characterization

Highly Sensitive Hydrazine Chemical Sensor Based on Nickel Doped Antimony Oxide Nanoellipsoids Modified Screen-Printed Electrode

2016 ◽  
Vol 8 (7) ◽  
pp. 555-560 ◽  
Author(s):  
Zeenat Khatoon ◽  
Taimur Athar ◽  
H. Fouad ◽  
A. Umar ◽  
Z. A. Ansari ◽  
...  
Keyword(s):  
Chemical Sensor ◽  
Antimony Oxide ◽  
Screen Printed Electrode ◽  
Highly Sensitive ◽  
Screen Printed

scholarly journals Sensing Performance of Al and Sn Doped ZnO for Hydrogen Detection

Proceedings ◽  
2019 ◽  
Vol 14 (1) ◽  
pp. 39
Author(s):  
Zahira. El khalidi ◽  
Maryam Siadat ◽  
Elisabetta. Comini ◽  
Salah. Fadili ◽  
Philippe. Thevenin
Keyword(s):  
Zinc Oxide ◽  
Chemical Sensor ◽  
Low Cost ◽  
Zinc Powder ◽  
Health Condition ◽  
Vibration Modes ◽  
X Ray Diffraction ◽  
Grain Sizes ◽  
Pure Oxide ◽  
Doped Zno

Chemical gas sensors were studied long ago and nowadays, for the advantageous role they provide to the environment, health condition monitoring and protection. The recent studies focus on the semiconductors sensing abilities, especially of non toxic and low cost compounds. The present work describes the steps to elaborate and perform a chemical sensor using intrinsic and doped semiconductor zinc oxide. First, we synthesized pure oxide using zinc powder, then, two other samples were established where we introduced the same doping percentage of Al and Sn respectively. Using low cost spray pyrolysis, and respecting the same conditions of preparation. The obtained samples were then characterized by X Ray Diffraction (XRD) that revealed the hexagonal wurzite structure and higher crystallite density towards the direction (002), besides the appearance of the vibration modes related to zinc oxide, confirmed by Raman spectroscopy. SEM spectroscopy showed that the surface morphology is ideal for oxidizing/reduction reactions, due to the porous structure and the low grain sizes, especially observed for the sample Sn doped ZnO. The gas testing confirms these predictions showing that the highest response is related to Sn doped ZnO compared to ZnO and followed by Al doped ZnO. The films exhibited responses towards: CO, acetone, methanol, H2, ammonia and NO2. The concentrations were varied from 10 to 500 ppm and the working temperatures from 250 to 500°C, the optimal working temperatures were 350 and 400 °C. Sn doped ZnO showed a high response towards H2 gas target, with a sensitivity reaching 200 at 500 ppm, for 400 °C.

scholarly journals Fabrication and characterization of copper oxide-zinc oxide solar cells prepared by electrodeposition

2013 ◽  
Vol 433 ◽  
pp. 012024 ◽  
Author(s):  
Kazuya Fujimoto ◽  
Takeo Oku ◽  
Tsuyoshi Akiyama ◽  
Atsushi Suzuki
Keyword(s):  
Zinc Oxide ◽  
Solar Cells ◽  
Copper Oxide ◽  
Fabrication And Characterization
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