What is ITO glass?

What is ITO glass?

ITO coated glass is made by spreading a thin but uniform layer of Indium Tin Oxide over a glass substrate, making the glass both low resistance and highly transparent. Indium tin oxide (ITO) is an optoelectronic material that is utilised widely in research and industry.

Why ITO is conductive and transparent?

ITO is not as conductive as metals, they do reflect light to, but this reflection only kicks in at longer wavelength (beyond visible light wavelength), therefore, they are transparent in the visible region.

Why is ITO type N?

ITO film is basically n-type degenerate semiconductor, for which a simple efficient solar cell is obtained when rectifying contact is formed between ITO and Si.

Is ITO a dielectric?

Although the dielectric constant of silica is about 3.9 for capacitor applications at low frequencies, it drops to about 2.2 at the visible range or at high frequencies; the dielectric constant of ITO is 3.2, which is about 1.5 times higher than that of silica.

What is the band gap of ITO?

ITO is a well-known n-type degenerate semiconductor4 with an optical band gap of 3.5–4.3 eV5 and has a high transmission in the near infrared and visible regions of the electromagnetic spectrum.

Is ITO flexible?

ITO has been popularly used as a high-quality flexible substrate to produce flexible electronics. However, this substrate’s flexibility decreases as its conductivity improves.

How is FTO glass made?

Fluorine doped tin oxide (FTO) thin films were prepared by using Ammonium Fluoride (NH4F) and DBTDA. These two solutions were mixed and finally get the Fluorine doped with tin oxide. The solution then proceeds to spray pyrolysis process to produce the FTO substrate.

What is ITO substrate?

Indium tin oxide (ITO) is a ternary composition of indium, tin and oxygen in varying proportions. Indium tin oxide is one of the most widely used transparent conducting oxides because of its electrical conductivity and optical transparency, as well as the ease with which it can be deposited as a thin film.

Why is ITO used in touch screens?

The reason why capacitive touchscreens have a layer of ITO is because it allows for conductivity. Glass, of course, has poor conductivity. With its transparent and conductive properties, ITO is one of the most common materials used for screen coatings on capacitive touchscreens.

What is the optical band gap of Ito?

ITO doesn’t have an OPTICAL band gap. It is the large ELECTRONIC band gap and not so high carrier density makes it transparent to visible light. OPTICAL band gap would only exist with photonic structures. This requires some understanding of wave-particle duality and band theory.

How does temperature affect the optical gap of ITO thin films?

As temperature increases, amorphous ITO thin films undergo a phase transition at ~ 200 °C and develop polycrystalline phases with increased optical gap energies. The optical gap energies of both polycrystalline and epitaxial ITO thin films decrease with increasing temperature due to electron–phonon interactions.

What are the physical and spectral properties of Ito?

Material and spectral properties. ITO has attractive properties including high level of transmittance in the visible region as well as electrical conductivity that is unique. This is mainly due to ITO’s highly degenerate behavior as an n-type semiconductor with a large band gap of around 3.5 to 4.3 eV.

What are the advantages of ITO thin film for glass lamps?

Moreover, ITO thin films for glass substrates can be helpful for glass windows to conserve energy. ITO green tapes are utilized for the production of lamps that are electroluminescent, functional, and fully flexible.