Improvement of indium–tin oxide films on polyethylene terephthalate substrates using hot-wire surface treatment

Lien, Shui Yang; Mao, Hsin Yuan; Wang, Jui Hao; Wu, Bi-Ru; Yao, Pin Chuan; Hsieh, In Cha; Peng, Hsin Han; Horng, Ray−Hua; Chuang, Yuan Chou

doi:10.1016/j.tsf.2005.07.147

Cited by 7 publications

(3 citation statements)

References 15 publications

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“…In these conditions, ITO refractive index around 2.0, direct bandgap energies above 3.7 eV and electrical resistivities below 4 × 10 −4 cm have been reported [5][6][7] that allow small ITO film thicknesses (<200 nm) to achieve low sheet resistances (<20 sq −1 ) as required for large area applications [3]. Recently, the replacement of rigid glass by flexible plastic substrates has gained great interest because it can give advantages such as lighter weight, higher shock resistance and scalable roll-to-roll deposition processes [8][9][10]. For the growth of ITO films onto flexible plastic substrates, however, it is necessary to reduce the process temperature due to the poor thermal endurance of the most commonly used polymer substrates.…”

Section: Introductionmentioning

confidence: 99%

Influence of the film thickness on the structure, optical and electrical properties of ITO coatings deposited by sputtering at room temperature on glass and plastic substrates

Guillén¹,

Herrero²

2008

Semicond. Sci. Technol.

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Transparent and conductive indium tin oxide (ITO) films with thickness between 0.2 and 0.7 µm were deposited by sputtering at room temperature on glass and polyethylene terephthalate (PET) substrates. All films were polycrystalline, with crystallite size increasing and lattice distortion decreasing when the film thickness was increased. Besides, transmission in the near-infrared region is found to be decreasing and carrier concentration increasing when the film thickness was increased. For the same thickness, the lattice distortion is slightly lower and the carrier concentration higher for the layers grown on PET substrates. A direct relationship between the lattice distortion and the free carrier concentration has been established, applying to the films grown on glass and plastic substrates. By adjusting ITO coating thickness, sheet resistance below 15 sq −1 and average visible transmittance about 90% have been achieved by sputtering at room temperature.

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Section: Introductionmentioning

confidence: 99%

Influence of the film thickness on the structure, optical and electrical properties of ITO coatings deposited by sputtering at room temperature on glass and plastic substrates

Guillén¹,

Herrero²

2008

Semicond. Sci. Technol.

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“…[30][31][32][33][34] It is observed that the former increased and the latter gradually decreased during the annealing process. The observed DRIFT spectra indicate that the Sn-O-Sn component is produced due to the decomposition of the In(OH) 3 precursor during the thermal annealing.…”

Section: -32mentioning

confidence: 99%

Influence of Thermal Annealing on the Microstructural Properties of Indium Tin Oxide Nanoparticles

Kim¹,

Kim²,

Choi³

2012

Bulletin of the Korean Chemical Society

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In this work, we studied the microstructural changes of ITO during the annealing process. ITO nanoparticles were prepared by the sol-gel method using indium tin hydroxide as the precursor. The prepared sample was investigated using TEM, powder XRD, XPS, DRIFT, and 2D correlation analysis. The O 1s XPS spectra suggested that the microstructural changes during the annealing process are closely correlated with the oxygen sites of the ITO nanoparticles. The temperature-dependent in situ DRIFT spectra suggested that In-OH in the terminal sites is firstly decomposed and, then, Sn-O-Sn is produced in the ITO nanoparticles during the thermal annealing process. Based on the 2D correlation analysis, we deduced the following sequence of events: 1483 (due to In-OH bending mode) → 2268, 2164 (due to In-OH stretching mode) → 1546 (due to overtones of Sn-O-Sn modes) → 1412 (due to overtones of Sn-O-Sn modes) cm −1.

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“…In most cases, poly (ethylene terephthalate) (PET) or poly(ethylene naphthalate) (PEN) substrates were used as a support film for the indium-doped tin oxide (ITO), because of their low cost and high transparency. 6,7 Until now, the substrate itself did not have play any role in improving the cell efficiency, since the polymer film employed in these systems plays no direct role in incrementing the light harvest efficiency.…”

mentioning

confidence: 99%

Enhanced light harvesting in dye-sensitized solar cells with highly reflective TCO- and Pt-less counter electrodes

et al. 2011

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Improvement of indium–tin oxide films on polyethylene terephthalate substrates using hot-wire surface treatment

Cited by 7 publications

References 15 publications

Influence of the film thickness on the structure, optical and electrical properties of ITO coatings deposited by sputtering at room temperature on glass and plastic substrates

Influence of the film thickness on the structure, optical and electrical properties of ITO coatings deposited by sputtering at room temperature on glass and plastic substrates

Influence of Thermal Annealing on the Microstructural Properties of Indium Tin Oxide Nanoparticles

Enhanced light harvesting in dye-sensitized solar cells with highly reflective TCO- and Pt-less counter electrodes

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