Fabrication and characterization of nanostructured fluorine doped tin oxide thin film for dssc by hydrothermal method
Nanostructured Fluorine Doped Tin Oxide (FTO) thin film has been successfully synthesized on top of bare FTO layer substrates using hydrothermal method. The performance of FTO thin film including conductivity and transparency depend on the surface morphology and the properties of the material. Hy...
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| Format: | Thesis |
| Language: | English English English |
| Published: |
2017
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/830/1/24p%20MUHAMMAD%20LUQMAN%20MOHD%20NAPI.pdf http://eprints.uthm.edu.my/830/2/MUHAMMAD%20LUQMAN%20MOHD%20NAPI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/830/3/MUHAMMAD%20LUQMAN%20MOHD%20NAPI%20WATERMARK.pdf |
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| Summary: | Nanostructured Fluorine Doped Tin Oxide (FTO) thin film has been
successfully synthesized on top of bare FTO layer substrates using hydrothermal
method. The performance of FTO thin film including conductivity and transparency
depend on the surface morphology and the properties of the material. Hydrothermal
method has proven to be a very good method for the fabrication of novel metal
oxides. Thus, a new nanostructured FTO thin film like nanorice has been fabricated
using one step hydrothermal method. FTO nanorice thin films were obtained from
the reaction of tin (iv) chloride (SnCl4), ammonium fluoride (NH4F), acetone,
deionized water and hydrochloric acid (HCl). The compound was prepared in an
autoclave at 150°C hydrothermal temperature for different reaction times of 5 hours,
10 hours, 15 hours, and 20 hours. FESEM studies on the surface morphologies of all
the samples showed that nanorice structure had formed to fully cover the bare FTO
substrate. Then, to further the optimization of FTO nanorice thin film, this research
focused on studying the effect of hydrothermal temperature on FTO nanorice thin
films. The experiments were conducted at 130°C, 140°C, 150°C, 160°C, and 170°C
of hydrothermal temperature in constant reaction time of 10 hours. Basically, there
were six properties studied; surface morphology, structural, element composition,
thickness measurement, electrical and optical properties. At the end of this research,
homogeneous FTO thin film has been successfully prepared. By controlling the
reaction time and hydrothermal temperature, a transparent FTO film with beyond
85% percentage of transmittance was developed. The FTO thin film produced at 10
hour reaction time and 150°C of hydrothermal temperature time gave the low sheet
resistance of 0.012 Ohm/sq with high transparency. The DSSC fabricated using the
optimized FTO film gave higher efficiency of 2.77% compared to commercial FTO
of 1.93%. |
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