Influence of Al, In, Cu, Fe and Sn dopants on the response of thin film ZnO gas sensor to ethanol vapour

Miki‐Yoshida, M.; Morales, Juan J.; Solis, J. L.

doi:10.1016/s0040-6090(00)01120-2

Cited by 301 publications

(132 citation statements)

References 11 publications

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“…Газові сенсори на основі ZnO привертають до себе значну увагу через їхню ви-соку чутливість, хімічну стійкість, нетоксичність та низьку собівартість. Значно покращуються газочутливі характеристики плівки оксиду цинку при введені легуючих домішок, оскільки легуван-ня збільшує кількість адсорбційних центрів [2]. Широко досліджувалися сенсорні характеристики плівок ZnO, легованих такими металами як Pd, Al, Sn, In, Mo, Sb, Co [3][4][5][6][7][8][9].…”

Section: вступunclassified

“…Крім цього, зі збільшенням вмісту міді в плівці оксиду цинку спостерігається зміщення піка (002) у бік вищих значень 2 , що є характерним для випадку ізо-морфного заміщення йонів Zn 2+ (0,057 нм) йонами Cu 2+ (0,06 нм) [14]. Чутливість сенсора розраховувалась за фор-мулою: (2) де R 0 -опір плівки при відсутності газу; R -опір плівки за наявності парів аналізованої речовини.…”

Section: результати та обговоренняunclassified

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ENGINEERING OF THE SENSITIVE ELEMENTS FOR THE SENSORS OF ETHANOL VAPOR, AMMONIA AND ACETONE BASED ON ZnO:Cu ТHIN FILMS

Kapustianik¹,

Turko²,

Panasiuk³

et al. 2012

SEMST

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Анотація. Методом ВЧ-магнетронного розпилення створено тонкі плівки ZnO:Cu з різною концентрацією міді. Досліджено вплив концентрації домішки міді на сенсорні властивості тон-ких плівок оксиду цинку, такі як чутливість та час відгуку, для аналізу пари етилового спирту, аміаку та ацетону.Ключові слова: сенсор, ZnO:Cu, тонкі плівки, етанол, аміак, ацетон ENGINEERING OF THE SENSITIVE ELEMENTS FOR THE SENSORS OF ETHANOL VAPOR

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Section: вступunclassified

Section: результати та обговоренняunclassified

ENGINEERING OF THE SENSITIVE ELEMENTS FOR THE SENSORS OF ETHANOL VAPOR, AMMONIA AND ACETONE BASED ON ZnO:Cu ТHIN FILMS

Kapustianik¹,

Turko²,

Panasiuk³

et al. 2012

SEMST

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“…According to literature, [21][22][23][24][25][26][27][28][29][30][31]33 ZnO interacted uniquely with VOCs bearing hydroxyl groups. Therefore, in this study, the behaviors of our ZnO nanoparticles were examined their responses to six compounds (methanol, ethanol, propanol, TCE, carbon tetrachloride (CCl4), and chloroform (CHCl3)) each injected at a volume of 1 μL into the static cell.…”

Section: Selectivity In the Detection Of Alcoholsmentioning

confidence: 99%

“…For instance, taking advantage of the catalytic behavior of ZnO, sensors have been developed for the detection of NOx, 17 alkanes, 18 ethers, 19 amines, [20][21][22] ketones, [23][24][25] aromatic volatile compounds, 26 and alcohols. [27][28][29][30][31] Unfortunately, these sensors are typically operated at temperatures above 250 C to trigger catalytic reactions that allow electronic sensing. The need for extreme sensing conditions and catalytically reactive molecules limits the application of these types of detection systems.…”

Section: Introductionmentioning

confidence: 99%

Development of a ZnO-modified Light-Scattering Sensor for the Detection of alcohols

Nian

Yang

2010

ANAL. SCI.

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A light-scattering sensor that incorporated zinc oxide (ZnO) nanoparticles was developed and characterized in this study. Evenly distributed nanostructured ZnO materials were formed on the sensing elements through the calcination of zinc acetate-treated sensing elements in a high-temperature oven. There was a large change in the scattering properties of the nanostructured ZnO materials after adsorption of the target compounds; this behavior was exploited for quantitative purposes. To investigate the detection of volatile compounds using this method, both static and flow cell-type devices were constructed. To determine the most suitable nanostructured ZnO material for the light scattering sensors, several factors that influenced their morphologies, including the calcination temperature, calcination time, and the amount of ZnO colloidal solution for calcination, were examined. Fiber-like ZnO structures were produced at temperatures below 400 C. Above 400 C, particles having round shapes were observed; the higher the calcination temperature, the larger the particle sizes. Based on an examination of the signals from several volatile organic compounds, the prepared ZnO sensor was selective for the detection of alcohols, and the observed signals followed the surface-adsorption mechanism. The prepared sensor is fast in response, and the detection time can be shorter than 2 min. For quantitative purposes, the linear range was limited to low concentrations of alcohols, i.e., up to ca. 200 ppm.

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“…ZnO, a member of the II-VI group of semiconductors, has been applied in lightemitting diodes, laser emission, window materials, solar cells, gas sensors [7][8][9][10][11][12]35], and surface acoustic wave devices. Impurity doping is necessary for the successful manipulation of the physical properties of ZnO doped with Cd [13,14].…”

Section: Introductionmentioning

confidence: 99%

Effect Cd Doping on the Structural and Optical Properties of ZnO Thin Films

A.Najim

Rozaiq

2013

ILCPA

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ZnO thin films with Cd/Zn nominal ratios of 0 %, 1 %, 3 %, 5 %, and 7 % and thickness of 0.7 µm were prepared by chemical spray pyrolysis. X-ray diffraction patterns showed that the films have polycrystalline structures and peaks matching the hexagonal ZnO structure. Crystallite sizes ranged from about 35 nm to 87 nm. As the doping concentration increased, full width at half maximum values decreased and crystallite sizes increased. The UV-Vis spectra of the ZnO:Cd films showed high transparency in the visible region. The optical band gap of the ZnO:Cd films decreased from 3.255 eV to 3.17 eV with increasing Cd doping concentration. The transition type was direct, thereby allowing transition. The ZnO:Cd thin films were annealed at 400 °C, and annealing treatment showed improvements in the properties of the derived films.

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Influence of Al, In, Cu, Fe and Sn dopants on the response of thin film ZnO gas sensor to ethanol vapour

Cited by 301 publications

References 11 publications

ENGINEERING OF THE SENSITIVE ELEMENTS FOR THE SENSORS OF ETHANOL VAPOR, AMMONIA AND ACETONE BASED ON ZnO:Cu ТHIN FILMS

ENGINEERING OF THE SENSITIVE ELEMENTS FOR THE SENSORS OF ETHANOL VAPOR, AMMONIA AND ACETONE BASED ON ZnO:Cu ТHIN FILMS

Development of a ZnO-modified Light-Scattering Sensor for the Detection of alcohols

Effect Cd Doping on the Structural and Optical Properties of ZnO Thin Films

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