Transparent and conductive F-Doped SnO2 nanostructured thin films by sequential nebulizer spray pyrolysis

Bandara, T M W J; Aththanayake, A. A. A. P.; Kumara, G.R.A.; DeSilva, L. Ajith; Tennakone, K.

doi:10.1557/s43580-021-00017-0

Cited by 9 publications

(5 citation statements)

References 17 publications

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“…This means that the experiments carried out have succeeded in making translucent glass although it is still lower commercialized. (Bandara et al, 2021). This is supported by visible observations as shown in Figure 6.…”

Section: Fto Glass Fabrication With Spray Pyrolysis Methodssupporting

confidence: 79%

Fabrication of Fluorine-Doped Tin Oxide (FTO): From experiment to its application in physics learning

Saehana,

Izzah,

Palamba

et al. 2023

Momentum: Physics Education Journal

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The paper reports the experiment in the laboratory in making FTO by employing spray pyrolysis methods, its application in DSSC, and its implementation in physics learning. The methodology in this research was mixed methods (experiment and qualitative methods). The experimental section was conducted by dissolving SnCl2.2H2O and NH4F in 96% alcohol and then depositioned on a glass substrate on a hotplate with a temperature of 450◦C using an Omron NE-C28 nebulizer. Spraying was carried out for 20 minutes then characterized morphology (SEM), content (EDS), crystal structure (XRD), transmittance (UV-VIS), and voltage-current (IV). Based on investigations using Scanning Electron Microscopy and Electron Dispersive Spectroscopy, it is known that transparent conductive SnO2:F particles have been formed. By using XRD, Nanometer-sized crystalline particles have also been identified. Furthermore, the FTO electrode is utilized as an electrode on DSSC and its performance is measured. In the qualitative section, students and researchers were interviewed about the physical aspect of the FTO fabrication process. Then, interview results were used to design laboratory physics learning.

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Section: Fto Glass Fabrication With Spray Pyrolysis Methodssupporting

confidence: 79%

Fabrication of Fluorine-Doped Tin Oxide (FTO): From experiment to its application in physics learning

Saehana,

Izzah,

Palamba

et al. 2023

Momentum: Physics Education Journal

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“…The spraying was conducted along longitudinal and lateral directions for about 10 s while maintaining a distance of 10 cm between the hot plate and the nozzle of the spray gun, such that the entire substrate is evenly covered (Figure 1b) based on previous studies. 30 After keeping it for ∼50 s at 500 °C, spraying was continued for another 10 s. This procedure was repeated until 40 mL of the precursor solution was consumed, and the sample was maintained at 500 °C for a further 30 min. This process, spraying 40 mL of the solution and subsequent heating to 500 °C, is considered a one-spray pyrolysis cycle (or one layer of the FTO film).…”

Section: ■ Experimental Detailsmentioning

confidence: 99%

“…27−29 The sheet resistance and optical transmittance of the FTO film reduce with the increase in the film thickness. 30,31 This behavior is a fundamental problem associated with FTO fabrication, which makes the simultaneous optimization of the electrical and optical properties of FTO for optoelectrical applications challenging.…”

Section: ■ Introductionmentioning

confidence: 99%

“…The lowest resistivity, as well as the highest optical transmittance of FTO films obtained via spray pyrolysis, has been recorded when the fluorine compound content is around 15–20 wt % of the tin compound. − The sheet resistance and optical transmittance of the FTO film reduce with the increase in the film thickness. , This behavior is a fundamental problem associated with FTO fabrication, which makes the simultaneous optimization of the electrical and optical properties of FTO for optoelectrical applications challenging.…”

Section: Introductionmentioning

confidence: 99%

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Fluorine-Doped Tin Oxide Thin Films with High Surface Conductance and Low Transparency for Boosting Performance in Dye-Sensitized Solar Cell Applications

Kananke Udubokke Rathnayakage,

Bandara,

Wijayaratne

et al. 2023

ACS Appl. Energy Mater.

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Transparent conductive oxide films, like fluorine-doped tin oxide (FTO), are needed for electrochemical devices. FTO films are attractive due to their cost-effectiveness and high-temperature tolerance. Generally, solar cell fabrication requires high transmittance and low-conductivity FTOs. However, achieving both simultaneously poses a fundamental challenge. This study investigates the impact of FTO layer thickness, sheet resistance, transparency, and film morphology on optimizing the performance of dye-sensitized solar cells. To achieve this, a precursor solution containing SnCl 4 •5H 2 O and NH 4 F in isopropanol is sprayed onto a soda-lime glass substrate at 500 °C to form FTO films. The film thickness is varied by repeating the spray cycles. By increasing the number of spray cycles, the sheet resistance of the FTO film improves to ∼1.20 Ω □ −1 with the expense of transmittance. The achieved very low sheet resistance of ∼1 Ω □ −1 (∼3.54 × 10 −4 ) Ω cm resistivity for the FTO film confirms the promise of this sequential spray pyrolysis technique in preparing highly conductive inert electrodes for various applications. Furthermore, DSCs with low transparency and sheet resistance showed higher-energy conversion efficiencies, challenging the current prerequisite of the requirement of high transmittance. The best efficiency (5.14%) is achieved with FTO films having a 34.2% transmittance and a 3.27 Ω □ −1 sheet resistance, outperforming standard FTO films (4.74%) with a 10 Ω □ −1 sheet resistance and an ∼83% transmittance. The results indicate that the transparency of FTO is not a dominant factor and carefully controlled light scattering and electrical properties in translucent FTO films would lead to the realization of dye-sensitized solar cells that deliver superior efficiency.

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“…Tin dioxide stands out among a wide range of materials for optoelectronics [1,2]. It is a semiconductor material with a unique characteristic of high optical transparency in the visible range of electromagnetic radiation and low electrical resistance [3,4]. Tin dioxide has numerous applications, serving as a gas-trapping layer in various gas sensors [5,6], an effective photoanode [7,8], a protective coating against corrosion [9,10], an antibacterial coating [11,12], an anode for high-performance lithium-ion batteries [13,14] and for various other purposes.…”

Section: Introductionmentioning

confidence: 99%

Influence of Annealing Time on the Optical and Electrical Properties of Tin Dioxide-Based Coatings

Dmitriyeva,

Lebedev,

Bondar

et al. 2024

Eurasian Chem.-Technol. J.

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This study investigates the effects of annealing time on the optical and electrical properties of tin dioxide coatings, specifically surface resistivity and specific conductivity. The thickness of the film, as well as its density and void density, were calculated from the interference peaks. The results suggest that as the duration of annealing increases, the density of the film decreases and the void volume increases. The lack of interference peaks in the transmission spectra of films containing additives is caused by the development of dendritic structures within the films. As the annealing duration is extended to 6 h, the surface resistivity increases, resulting in a decrease in the specific conductivity of all films. As the duration of annealing increases, the surface resistivity of the films studied increases and therefore their overall quality decreases.

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Transparent and conductive F-Doped SnO2 nanostructured thin films by sequential nebulizer spray pyrolysis

Cited by 9 publications

References 17 publications

Fabrication of Fluorine-Doped Tin Oxide (FTO): From experiment to its application in physics learning

Fabrication of Fluorine-Doped Tin Oxide (FTO): From experiment to its application in physics learning

Fluorine-Doped Tin Oxide Thin Films with High Surface Conductance and Low Transparency for Boosting Performance in Dye-Sensitized Solar Cell Applications

Influence of Annealing Time on the Optical and Electrical Properties of Tin Dioxide-Based Coatings

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