How to produce indium tin oxide ITO powder?

Overview of Indium Tin Oxide

The main characteristic of indium tin oxide is its combination of electrical conductivity and optical transparency. However, compromises need to be made in thin film deposition, because a high concentration of charge carriers will increase the conductivity of the material, but will reduce its transparency.

Indium tin oxide thin films are most commonly deposited on the surface by physical vapor deposition or some sputtering deposition techniques.

Because of the high price and limited supply of indium, the fragility and lack of flexibility of ITO layers, and the need for vacuum for expensive layer deposition, other substitutes are being sought. Carbon nanotube conductive coating is a promising alternative (graphene is the best alternative). This type of coating is being developed by Eikos as a cheaper and more mechanically robust alternative to ITO. PEDOT and PEDOT:PSS have been manufactured by Agfa and H.C. Starck. The PEDOT:PSS layer has entered the application stage (but it also has some other shortcomings that it degrades when exposed to ultraviolet radiation). Other possibilities include such as aluminum-doped zinc oxide.

How to produce indium tin oxide ITO powder

ITO powder usually adopts the following preparation method: respectively oxidizing metal indium and metal tin to obtain indium oxide powder and tin oxide powder, and then mixing and dispersing the indium oxide powder and tin oxide powder. In this method, it is difficult to completely synchronously control the conditions, such as metal indium and metal tin as basic raw materials, such as dissolution rate, dissolution temperature, neutralization pH, neutralization temperature and stirring speed, so the indium tin oxide powder prepared , The particle size deviation of tin oxide powder is large, which affects the quality of ITO film. In order to solve the problem of ITO powder uniformity, the co-precipitation method is also used to prepare ITO powder. This method uses nitric acid to dissolve metallic indium and metallic tin, and then mix the generated indium nitrate and tin nitrate according to the ratio, and then use ammonia for co-precipitation. The co-precipitated hydroxide is precipitated and finally calcined to obtain indium tin oxide.

Indium tin oxide applications

ITO is mainly used to make liquid crystal displays, flat panel displays, plasma displays, touch screens, electronic paper, organic light-emitting diodes, and solar cells, and antistatic coatings and transparent conductive coatings for EMI shielding.

ITO is also used in various optical coatings, the most notable ones are infrared-reflective coatings (hot mirrors) in architecture, automobiles, and sodium vapor lamp glass. Other applications include gas sensors, anti-reflection films, and Bragg reflectors for VCSEL lasers.

ITO thin film stress gauges can be used in harsh environments above 1400°C, such as gas turbines, jet engines, and rocket engines.

The ITO film deposited on the windshield is used to defrost the windshield of the aircraft. Heat is generated by applying voltage to the film.

 ITO is also used in various optical coatings, the most famous being infrared reflective coatings (hot mirrors) used in automotive and sodium vapor lamp glass. Other uses include gas sensors, anti-reflective coatings, electrowetting on dielectrics, and Bragg reflectors for VCSEL lasers. ITO is also used as an infrared reflector for low emissivity window panes. Starting from Kodak DCS 520, later Kodak DCS cameras also use ITO as a sensor coating to enhance the response of the blue channel.

Indium tin oxide price

The price of indium tin oxide will vary with the production cost, transportation cost, international situation and market supply and demand of indium tin oxide randomly. Tanki New Materials Co.,Ltd. aims to help various industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for indium tin oxide, please feel free to send an inquiry to get the latest price of indium tin oxide.

Indium tin oxide suppliers

As a global supplier of indium tin oxide, Tanki New Materials Co.,Ltd has extensive experience in the performance, application and cost-effective manufacturing of advanced and engineered materials. The company has successfully developed a series of powder materials (cerium oxide, zinc oxide, Nickel oxide, indium tin oxide), high-purity targets, functional ceramics and structural devices, and provide OEM services.