Conducting glass and preparation method thereof

Abstract

The invention relates to a piece of conducting glass and a preparation method thereof. The conducting glass comprises a transparent glass base. The conducting glass further comprises an impurity stopping layer and a conducting functional layer which are sequentially overlapped on the transparent glass base, wherein the impurity stopping layer is formed by a metal oxide layer and a monox layer which are overlapped, or a mixture layer of the metal oxide layer and the monox layer. According to the conducting glass, the impurity stopping layer can be used for preventing the situation that sodion spreads and enters a tin oxide film to generate fog on the film and cause the reduction of the chemical properties of the film, so that resistance can be reduced while high optical transmittance can be ensured; and when the conducting glass serves as a transparent conducting electrode of a photoelectric device, a contact-potential barrier can be provided, and thereby, the loss of the impedance of the device can be reduced.

Description

【Technical field】 [0001] The invention relates to a conductive glass and a preparation method thereof, in particular to a conductive glass with high optical transmittance and high conductivity and a preparation method thereof. 【Background technique】 [0002] Transparent conductive glass not only has the optical transparency of traditional glass in the visible light range, but also has good electrical conductivity, so it has been widely used in optoelectronic devices. For example, it is used as a transparent electrode in devices such as solar cells, flat panel displays, touch screens and LEDs. In the optoelectronic industry, it occupies a very important position and has brought huge economic benefits to the society. [0003] At present, there are three main types of commercial conductive films: indium oxide films, especially tin-doped indium oxide (ITO) films, tin oxide (SnO 2 ) doped films and zinc oxide (ZnO) doped films. Among them, tin-doped indium oxide thin films hav...

AI Technical Summary

Problems solved by technology

However, float glass contains a large amount of alkali metal Na ions, which easily migrate into the film at high temperature for film deposition to cause structural defects.

On the other hand, Na ions are SnO 2 The p-type dopant neutralizes part of the carriers and reduces the electrical properties of the film

At the same time, Na ions can also combine with Cl in the Sn precursor to form NaCl impurities that are combined into the tin oxide film, making the film foggy and reducing the optical properties of the film.

In addition, the diffusion of Na ions causes structural stress in the tin oxide film, and the adhesion strength of the film decreases.

Images