Optical and structural properties of sol - Gel derived ZnO:F thin films

[en] In the present work, we report the influence of the fluorine doping (two different concentrations) in ZnO films and the annealing temperatures on the film structural, vibrational and optical properties. ZnO:F films are successfully deposited by a facile sol-gel approach. X-Ray diffraction (XRD) analysis shows that F doping induces an improved film crystalinity. The ZnO:F films are polycrystalline with wurtzite structure. Fourier Transform Infrared (FTIR) study reveals that fluorine affects the shapes and positions of the absorption bands. The optical transparency of ZnO:F films is higher than that of undoped ZnO.The optical band gap has been determined from spectrophotometric data. The optical band gap values become narrower with increasing the annealing temperatures, due to the bigger crystallite sizes. © 2019 Author(s).

Disciplines :

Chemistry
Materials science & engineering

Author, co-author :

Ivanova, Tatyana; Central Laboratory of Solar Energy and New Energy Sources, Bulgarian Academy of Sciences, Tzarigradsko chaussee 72, Sofia, Bulgaria

Harizanova, Antoaneta; Central Laboratory of Solar Energy and New Energy Sources, Bulgarian Academy of Sciences, Tzarigradsko chaussee 72, Sofia, Bulgaria

Koutzarova, Tatyana; Institute of Electronics, Bulgarian Academy of Sciences, Tzarigradsko chaussee 72, Sofia, Bulgaria

Vertruyen, Bénédicte ; Université de Liège - ULiège > Département de chimie (sciences) > Chimie inorganique structurale

Language :

English

Title :

Optical and structural properties of sol - Gel derived ZnO:F thin films

Publication date :

2019

Event name :

10th Jubilee International Conference of the Balkan Physical Union

Event date :

26-30 August 2018

Audience :

International

Journal title :

AIP Conference Proceedings

ISSN :

0094-243X

eISSN :

1551-7616

Publisher :

American Institute of Physics, New York, United States - New York

Volume :

2075

Pages :

140005

Peer reviewed :

Peer Reviewed verified by ORBi

Funders :

WBI - Wallonie-Bruxelles International

Available on ORBi :

since 19 December 2019

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