Fabrication of a novel SnO2:Al/ZnO:F bi-layer for opto-electronic applications

Ravikumar, Patta; Ravichandran, K.; Sakthivel, B.; Begum, N. Jabena; Ravichandran, A. T.

doi:10.1007/s10854-013-1366-0

Cited by 7 publications

(4 citation statements)

References 44 publications

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“…Transparent conducting oxide (TCO) films such as zinc oxide, indium tin oxide (ITO), fluorine‐doped tin oxide (FTO), aluminum‐doped zinc oxide (AZO), graphene, and carbon nanotubes have attracted researchers for applications in various areas ranging from displays and solar cells to transparent heat windows . Among these applications, the transparent heater has attracted growing interest for a wide range of applications including outdoor displays, mirrors, vehicle window defrosters, heat‐retaining windows, and other heating systems .…”

Section: Introductionmentioning

confidence: 99%

Double-layer effect on electrothermal properties of transparent heaters

Kim

Lee

Park

et al. 2014

Phys. Status Solidi A

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Phone: þ82 10 8717 0978, Fax: þ82 2 958 5229 Transparent double-layer heaters that consist of aluminumdoped zinc oxide and fluorine-doped tin oxide films are prepared by electron cyclotron resonance-metal organic chemical vapor deposition and RF-sputtering systems, in sequence. The double-layered transparent conducting oxide film is designed and prepared to achieve both of high conductivity and high-temperature performance. This double-layer structure has lower sheet resistance, due to the grain size increase with respect to the single-layer films. The fluorine-doped tin oxide/aluminum-doped zinc oxide double-layer film shows a sheet resistance as low as 36.7 V sq À1 , and an optical transmittance of $82%, which are suitable properties for low-voltage transparent heaters. Hall measurement results show that the double-layer film has remarkably increased conductivity and decreased resistivity. In addition, the time-versus-temperature profile shows that the performance of the fluorine-doped tin oxide/aluminumdoped zinc oxide double layer is superior to that of the aluminum-doped zinc oxide and fluorine-doped tin oxide single-layer films.

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Section: Introductionmentioning

confidence: 99%

Double-layer effect on electrothermal properties of transparent heaters

Kim

Lee

Park

et al. 2014

Phys. Status Solidi A

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“…The review of literature revealed that a double layered thin film composed of ZnO and SnO2 doped with metals elements [11] and followed with annealing process [12] could give birth of the ideal electronic device where the crystallinity, the electrical conductivity and the morphological properties of ZnO/SnO2 bilayers are improved compared to corresponding single layers and all other double layer films [1,6]. Moreover, the ZnO/SnO2 bilayer structure has been investigated for applications in the solar cells, photoelectrochemical cells (PECs), thin film transistors, gas sensors and nanogenerators [13][14][15]. P. Ravikumar et al [15] fabricated SnO2:Al/ZnO:F bi-layer with high transmittance, low resistivity, and homogeneity surface by employing spray pyrolysis technique and annealing process.…”

mentioning

confidence: 99%

“…Moreover, the ZnO/SnO2 bilayer structure has been investigated for applications in the solar cells, photoelectrochemical cells (PECs), thin film transistors, gas sensors and nanogenerators [13][14][15]. P. Ravikumar et al [15] fabricated SnO2:Al/ZnO:F bi-layer with high transmittance, low resistivity, and homogeneity surface by employing spray pyrolysis technique and annealing process. The same result was obtained for ZnO:F/SnO2:Al bi-layer [16].…”

mentioning

confidence: 99%

“…P. Ravikumar et al [15] fabricated SnO2:Al/ZnO:F bi-layer with high transmittance, low resistivity, and homogeneity surface by employing spray pyrolysis technique and annealing process. The same result was obtained for ZnO:F/SnO2:Al bi-layer [16]. In this work, the ZnO:Sn/SnO2:F bi-layer films were fabricated by low cost spray pyrolysis and the effect of vacuum annealing temperature on structural, morphological and electrical were investigated.…”

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confidence: 99%

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Vacuum annealing effect on physical properties and electrical circuit model of ZnO:Sn/SnO2:F bilayer structure

Dabbabi

Souli

Nasr

et al. 2019

Vacuum

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Tin doped Zinc oxide/Fluorine doped tin dioxide bilayer films (ZnO:Sn/SnO2:F) were deposited on glass substrates using spray pyrolysis technique. The effect of vacuum annealing at different temperature was investigated. Both structural and morphological analysis have shown that there is a significant modification in the bilayer film structure and surface following the vacuum annealing process at 450°C. Electrical properties have been investigated using the Hall Effect measurements as well as the impedance spectroscopy at room temperature. The circuit parameters were determined using an equivalent circuit model fitted from the impedance spectra and suggesting the presence of grain and grain boundary conductions in the bilayer structure. It was found that the film annealed in vacuum for 1h at 350°C is optimal in all respects, as it possesses all the desirable characteristics including the lowest resistivity, high porosity and better grain boundary conductivity.

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