Electrochemical deposition of ZnO nanostructures onto porous silicon and their enhanced gas sensing to NO2 at room temperature

2014 ◽  
Vol 115 ◽  
pp. 297-305 ◽  
Author(s):  
Dali Yan ◽  
Ming Hu ◽  
Shenyu Li ◽  
Jiran Liang ◽  
Yaqiao Wu ◽  
...  
RSC Advances ◽  
2016 ◽  
Vol 6 (50) ◽  
pp. 44410-44414 ◽  
Author(s):  
Hamid Ghorbani Shiraz ◽  
Fatemeh Razi Astaraei ◽  
Somayeh Fardindoost ◽  
Zahra Sadat Hosseini

A new triple-component sensor for detection of H2 was developed based on porous silicon and CNTs.


Sensors ◽  
2017 ◽  
Vol 17 (12) ◽  
pp. 2750 ◽  
Author(s):  
Nu Eom ◽  
Hong-Baek Cho ◽  
Yoseb Song ◽  
Woojin Lee ◽  
Tohru Sekino ◽  
...  

Author(s):  
Nu Si A Eom ◽  
Hong-Baek Cho ◽  
Yoseb Song ◽  
Woojin Lee ◽  
Tohru Sekino ◽  
...  

In this study, a graphene-doped porous silicon (G-doped/p-Si) substrate for low ppm H2 gas detection by an inexpensive synthesis route was proposed as a potential noble graphene-based gas sensor material and to understand the sensing mechanism. The G-doped/p-Si gas sensor was synthesized by a simple capillary force-assisted solution dropping method on p-Si substrates, whose porosity was generated through an electrochemical etching process. G-doped/p-Si was fabricated with various graphene concentrations and exploited as a H2 sensor operated at room temperature. The sensing mechanism of the sensor with/without graphene decoration on p-Si was proposed to elucidate the synergetic gas sensing effect generated from the interface between the graphene and p-type silicon.


2019 ◽  
Vol 11 (3) ◽  
pp. 69 ◽  
Author(s):  
Piotr Dariusz Kałużyński ◽  
Marcin Procek ◽  
Agnieszka Stolarczyk

In this paper we present an investigation on UV radiation on organic-inorganic blend made from conductive polymer (regio-regular poly(3-hexyltiophene) (rr-P3HT) and zinc oxide (ZnO) nanomaterial, which was used as a sensing layer for chemoresistor structure. The study showed that UV radiation has a significant impact on the dynamics of the response of the sensor being studied, which can be a significant element to improve the operation of such sensors at room temperature. Full Text: PDF ReferencesKampa, M.., Castanas, E., "Human health effects of air pollution," Environ. Pollut. 151(2), 362-367 (2008). CrossRef Procek, M., Stolarczyk, A., Pustelny, T.., Maciak, E., "A Study of a QCM Sensor Based on TiO2 Nanostructures for the Detection of NO2 and Explosives Vapours in Air.," Sensors (Basel). 15(4), 9563-9581, MDPI AG (2015). CrossRef Procek M., Stolarczyk A., "Influence of near UV irradiation on ZnO nanomaterials NO2 gas sensing properties," Proc. SPIE 10830, 13th Conference on Integrated Optics: Sensors, Sensing Structures, and Methods, 108300P (14 August 2018); doi: 10.1117/12.2503471 CrossRef Procek M., Stolarczyk A., Maciak E., "Study of the impact ofUV radiation on NO2 sensing properties of graft comb copolymers of poly(3-hexylthiophene) at room temperature," Proc. SPIE 10455, 12th Conference on Integrated Optics: Sensors, Sensing Structures, and Methods, 104550N (1 September 2017); doi: 10.1117/12.2282777 CrossRef Djurišić, A.B. & Ng, Alan Man Ching & Chen, Xinyi. (2010). ZnO Nanostructures for Optoelectronics: Material Properties and Device Applications. Progress in Quantum Electronics. 34. 191-259. 10.1016/j.pquantelec.2010.04.001. CrossRef Xie, Tao & Xie, Guangzhong & Du, Hongfei & Su, Yuanjie & Ye, Zongbiao & Chen, Yuyan & Jiang, Yadong. (2015). Two novel methods for evaluating the performance of OTFT gas sensors. Sensors and Actuators B: Chemical. 230. 10.1016/j.snb.2015.12.056. CrossRef Procek, M.; Stolarczyk, A.; Pustelny, T. Impact of Temperature and UV Irradiation on Dynamics of NO2 Sensors Based on ZnO Nanostructures. Nanomaterials 2017, 7, 312. CrossRef


2016 ◽  
Vol 25 (2) ◽  
pp. 028102 ◽  
Author(s):  
Deng-Feng Wang ◽  
Ji-Ran Liang ◽  
Chang-Qing Li ◽  
Wen-Jun Yan ◽  
Ming Hu

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