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Chatterjee, A. K.; Mitra, Partha; Mukhopadhyay, Anoop Kumar

doi:10.1023/a:1004694501646

Cited by 164 publications

(65 citation statements)

References 19 publications

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“…The diffractogram shows that the product formed exhibit the characteristic diffraction peaks of ZnO with hexagonal wurtzite structure (space group P6 3 mc). These peaks are probably related to the crystalline planes (100), (101), (110) and (103) According to previous studies 17,18 , depending on the concentration of the precursor solution, the nanostructures prepared by chemical or electrochemical methods may exhibit in their composition ZnO particles mixed with other phases such as Zn(OH) 2 Transmission electron microscopy was used to examine the morphological characteristics of the product synthesized at 90 °C employing Zn(NO 3 ) 2 .6H 2 O as precursor (Figure 3). The image shows the presence of short nanoprisms and nanorods.…”

Section: Discussionsupporting

confidence: 53%

Effect of different precursors in the chemical synthesis of ZnO nanocrystals

et al. 2011

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This work evaluates the effect of ZnCl 2 and Zn(NO 3 ) 2 .6H 2 O as precursors in the synthesis of ZnO nanocrystals. The materials were obtained at 90 °C by a simple solochemical route. The resulting samples were characterized regarding phase composition, particle size and morphology, by means of XRD and TEM. The analysis have provided evidences that the material obtained applying Zn(NO 3 ) 2 .6H 2 O as precursor has hexagonal crystalline structure, typical of the ZnO, and dimensions in the nanoscale. However, applying ZnCl 2 as precursor results in a mixture of ZnO and Zn 5 (OH) 8 Cl 2 .H 2 O phases. For both precursors, the predominant morphology of the obtained ZnO nanocrystals was the rod-like structure.

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Section: Discussionsupporting

confidence: 53%

Effect of different precursors in the chemical synthesis of ZnO nanocrystals

et al. 2011

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“…In order to enhance the sensitivity and selectivity of H 2 S, many attempts were made to systemize nanostructure ZnO with different morphologies [23][24][25][26][27]. However, there are very few reports on ZnO nanostructure based room temperature H 2 S sensors.…”

Section: Introductionmentioning

confidence: 99%

Zinc Oxide Nanostructure Thick Films as H<sub>2</sub>S Gas Sensors at Room Temperature

Kalyamwar¹,

Raghuwanshi²,

Jadhao³

et al. 2013

JST

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The ZnO nanostructures have been synthesized and studied as the sensing element for the detection of H 2 S. The ZnO nanostructures were synthesized by hydrothermal method followed by sonication for different interval of time i.e. 30, 60, 90 and 120 min. By using screen printing method, thick films of synthesized ZnO nanostructure were deposited on glass substrate. Gas sensing properties of ZnO nanostructure thick films were studied for low concentration H 2 S gas at room temperature. The effects of morphology of synthesized ZnO nanostructure on gas sensing properties were studied and discussed. ZnO nanostructure synthesized by this method can be used as a promising material for semiconductor gas sensor to detect poisonous gas like H 2 S at room temperature with high sensitivity and selectivity.

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“…ZnO gas sensors have been fabricated in various forms, including single crystals, sintered pellets, thick films, thin films and hetero-junctions which were studied to detect H 2 [7], NO 2 [8], NH 3 [9], CH 4 [10], O 2 [11], CO [8] and ethanol [12]. It is envisioned the ordered ZnO nanostructure has the potential to enhance performance of the gas sensors.…”

Section: Introductionmentioning

confidence: 99%

A ZnO nanorod based layered ZnO/64° YX LiNbO3 SAW hydrogen gas sensor

Sadek

Włodarski

et al. 2007

Thin Solid Films

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Abstract-A zinc oxide (ZnO) nanorod based surface acoustic wave (SAW) sensor has been developed and investigated towards hydrogen (H 2 ) gas. The ZnO nanorods were deposited onto a layered ZnO/64° YX LiNbO 3 substrate using a liquid solution method. Micro-characterization results revealed that the diameters of ZnO nanorods are around 100 and 40 nm on LiNbO 3 and Au (metallization for electrodes), respectively. The sensor was exposed to different concentrations of H 2 in synthetic air at operating temperatures between 200°C and 300°C. The study showed that the sensor responded with highest frequency shift at 265°C. At this temperature, stable base-line and fast response and recovery were observed.

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Cited by 164 publications

References 19 publications

Effect of different precursors in the chemical synthesis of ZnO nanocrystals

Effect of different precursors in the chemical synthesis of ZnO nanocrystals

Zinc Oxide Nanostructure Thick Films as H<sub>2</sub>S Gas Sensors at Room Temperature

A ZnO nanorod based layered ZnO/64° YX LiNbO3 SAW hydrogen gas sensor

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Untitled

Cited by 164 publications

References 19 publications

Effect of different precursors in the chemical synthesis of ZnO nanocrystals

Effect of different precursors in the chemical synthesis of ZnO nanocrystals

Zinc Oxide Nanostructure Thick Films as H&lt;sub&gt;2&lt;/sub&gt;S Gas Sensors at Room Temperature

A ZnO nanorod based layered ZnO/64° YX LiNbO3 SAW hydrogen gas sensor

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Zinc Oxide Nanostructure Thick Films as H<sub>2</sub>S Gas Sensors at Room Temperature