At present, the hand is a intelligent mobile phone, tablet computer, touch panel sliding, the most expensive material is a transparent conductive film "(transparent conductive oxide referred to as TCO). Taiwan ITRI just won the 2012 global top 100 technology (R&D 100) award of "low temperature atmospheric pressure plasma coating technology, will help industry, the cost from the material end, also let Taiwan production equipment business truly autonomous, without relying on imports!
Atmospheric pressure plasma technology to produce the "patterned transparent conductive film" can be applied to the flexible substrate, the future flat panel computer soft rolled away is not a dream. ITRI "low temperature atmospheric pressure plasma coating technology to simplify the process from material, can be turned into low temperature high temperature environment, the whole conforms to the green process, let developers work in a more secure environment. Also let Taiwan industry early implementation of EU green manufacturing target. Transparent conductive film can be applied in the touch panel industry, solar cells, such as window of building and wisdom.
Baidu Encyclopedia: transparent conductive film (TCO) is currently the main application is a ITO film, and other AZO.
The transparent conductive film (TCO) transparent electrodes in solar cells is mainly used for battery, some can also be used as antireflection film. Different transparent conductive film, electrical, optical and structure are not the same, but also for solar battery photoelectric characteristics and output characteristics (such as battery internal and external quantum efficiency, short-circuit current, open circuit voltage, filling factor, etc.) have different effects. In general, a solar battery on the transparent conductive film is the requirement of high carrier concentration, the band gap width is big, photoelectric characteristics of a good, stable chemical property, low resistivity, high mechanical strength and excellent abrasion resistance etc..
ITO film is a transparent semiconductor film, it is indium tin oxide (indium t in ox IDE) English name abbreviation. Some scholars of indium oxide series (In2O 22SnO 2) is also known as the ITO thin film. As a transparent conducting electrode, ITO film with the requirements of transparency and good conductivity. So, generally G band gap width E of these materials is greater than 3 eV, the doping component to deviations from stoichiometry. Preparation method of ITO thin film evaporation, sputtering and reactive ion plating, chemical vapor deposition, spray pyrolysis, but is the use of the most reactive magnetron sputtering method [1, 2]. Compared with other transparent conductive film, ITO film has good chemical stability, thermal stability and good graphics processing characteristics.
We found that ITO thin films by cesium treatment with photoelectric emission effect. The photoelectric emission stability, have integral sensitivity of 1.71 ua/lm, life up to 1000 hours. The photoelectric emission of this ITO film for flat panel display optoelectronic devices, the fabrication of large area of the member will have a greater role in promoting. |
