European Journal of Chemistry 2010, 1(2), 96-101. doi:10.5155/eurjchem.1.2.96-101.49

Optical and gas sensing studies of transparent ZnO thin film deposited from a new precursor by ultrasonic aerosol assisted chemical vapor deposition


Muzammil Hussain (1) , Syed Tajammul Hussain (2,*)

(1) Department of Chemistry, Quaid-i-Azam University, Islamabad-45320, Pakistan
(2) National Centre For Physics, Quaid-i-Azam University Complex, Islamabad-43520, Pakistan
(*) Corresponding Author

Received: 08 Apr 2010, Accepted: 21 Apr 2010, Published: 15 Jun 2010

Abstract


Transparent semi-conducting ZnO thin films with low resistivity and high transmittance in the visible optical region were deposited by the decomposition of bis(2,4-pentanedionate)-bis(aminoethanol) zinc(II) under an atmosphere of oxygen on ceramic, metal and quartz substrates by ultrasonic aerosol assisted chemical vapor deposition. The precursor was synthesized from bis(2,4-pentanedionate) zinc(II) and aminoethanol by sonication in acetonitrile and was characterized by melting point, infrared spectroscopy, CHNS-O elemental, atomic absorption, and single crystal X-ray diffraction analysis. TGA-FTIR was used to identify the cause of the weight losses and evolved gases formed during the breakup of the molecules. Electrical and optical measurements showed that the ZnO film has a band gap of 3.02 eV and typical semiconductor properties with a resistivity that depends on the thickness of the film. Powder XRD, SEM and EDX show that films are uniform, smooth and crystalline in nature, giving particle sizes in the range of 30-60 nm and exhibit a (002) orientation with the c-axis perpendicular to the substrate surface.

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Keywords


New Precursor; ZnO; Thin Films; CVD; Gas Sensors; Ceramic Substrate

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DOI: 10.5155/eurjchem.1.2.96-101.49

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[1]. Leila Mahdavian
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How to cite


Hussain, M.; Hussain, S. Eur. J. Chem. 2010, 1(2), 96-101. doi:10.5155/eurjchem.1.2.96-101.49
Hussain, M.; Hussain, S. Optical and gas sensing studies of transparent ZnO thin film deposited from a new precursor by ultrasonic aerosol assisted chemical vapor deposition. Eur. J. Chem. 2010, 1(2), 96-101. doi:10.5155/eurjchem.1.2.96-101.49
Hussain, M., & Hussain, S. (2010). Optical and gas sensing studies of transparent ZnO thin film deposited from a new precursor by ultrasonic aerosol assisted chemical vapor deposition. European Journal of Chemistry, 1(2), 96-101. doi:10.5155/eurjchem.1.2.96-101.49
Hussain, Muzammil, & Syed Tajammul Hussain. "Optical and gas sensing studies of transparent ZnO thin film deposited from a new precursor by ultrasonic aerosol assisted chemical vapor deposition." European Journal of Chemistry [Online], 1.2 (2010): 96-101. Web. 19 Sep. 2019
Hussain, Muzammil, AND Hussain, Syed. "Optical and gas sensing studies of transparent ZnO thin film deposited from a new precursor by ultrasonic aerosol assisted chemical vapor deposition" European Journal of Chemistry [Online], Volume 1 Number 2 (15 June 2010)

DOI Link: https://doi.org/10.5155/eurjchem.1.2.96-101.49

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