[small Metal Summit] Pan Jingong: cadmium Telluride Industry will lead Green Building Materials in the Future under the key support of the State

SMM net news: "cadmium telluride power generation glass is a kind of photovoltaic product formed by depositing functional materials between two pieces of glass, which can be called a new type of" power generation glass ". It is the most successful product in the industrialization of the second generation of solar cells. it is a key photoelectric product developed in the United States and has also been attached importance to by Germany. " From May 24 to 26, at the "2018 small Metal Industry Summit" held in Nanning, Guangxi, Mr. Pan Jingong, general manager of Chengdu China Building Materials Optoelectronic Materials Co., Ltd., first introduced cadmium telluride power generation glass.

So what's the difference between power glass and batteries? Pan Jingong makes an interesting metaphor, if the battery is compared to steamed buns, then the power glass is undoubtedly a large pizza.

From the point of view of preparation technology, power generation glass preparation technology is to use glass preparation technology to solve the technical problems in the process of power generation glass preparation.

After calculation, Pan Jingong believes that cadmium telluride is the best solar photoelectric material.

"in the industrialization of cadmium telluride thin film power generation glass, China started relatively late." Pan Jingong described the current situation of development in China. he said that other research units in this direction in China are: China University of Science and Technology, Sichuan University, Shanghai Solar Cell Research and Development Center, Institute of Electrical Engineering of the Chinese Academy of Sciences, long Yan Energy Technology, and Sichuan Suntech. The conversion efficiency of small area cadmium telluride thin film solar cells is less than 15.7%.

In terms of national policy, the National Development and Reform Commission issued decree No. 9 of the National Development and Reform Commission on 27 March 2011 to include cadmium telluride in the 12th five-year Plan national key support projects. In 2013, the Ministry of Industry and Information Technology supported the development of cadmium telluride technology. Cadmium telluride and copper indium gallium selenium are listed as innovative development directions in the 2016 China Energy Innovation Action Plan.

On May 18, 2011, Wang Yang, a member of the political Bureau of Guangdong Province, met with Dr. Pan Jingong and others, calling on Guangdong to emancipate its mind, change its development model from a large amount of funds to a large amount of science and technology, and rely on scientific and technological innovation to promote economic development. Attach importance to technological innovation.

For the demand for raw materials, Pan Jingong proposed that the consumption of excess glass, leading the revolution in energy-saving building materials. Adjusting the product structure with technological innovation, improving the scientific and technological content to fill the deficiency board, and consuming the glass with backward production capacity, this production line has provided technical support for China to upgrade from a large country of building glass to a powerful country of electronic glass, and to enter a powerful country of semiconductors in the next step. Or lead a new green building materials industry.

Bengbu glass hospital 0.3mm ultra-thin touch screen glass production line comprehensive building (demonstration project):

Pan Jingong listed four directions for glass technology innovation:

Ultra-albinism: Fe2O3 ≤ 50 ppm in glass composition, and the transmittance after coating is 94.6%.

Ultra-thin: substrate glass will develop to the flexibility below 0.1mm.

Control of large size and Micro defects: the size of the Application of New Glass Materials will be further increased and the defects should be reduced

Multifunctional: cadmium telluride, copper indium gallium selenium power generation glass and so on need compound function

For example, in view of the characteristics of the National Grand Theater, such as the difficulty of cleaning the special-shaped roof and the high requirement of the energy-saving effect and acoustic effect of the theater, the self-cleaning Low-E hollow glass with composite function is adopted, which realizes the harmony and unity of the technical effect and the aesthetic effect.

The demand for raw materials will also consume non-ferrous metals and promote the development of the nonferrous industry.

The domestic market for non-ferrous materials is also gradually shrinking, prices are falling all the way, and it is impossible to achieve great development in the short term, and we in Chengdu, building materials, this is the case. By using the new technology to combine the traditional flat glass with the non-ferrous metal material, a new product, "cadmium telluride weak light power generation glass", is produced, which is no longer an ordinary building material, but is upgraded to a functional material.