Alfa Chemistry Blog

Photochromic materials refer to a class of materials that can change color after being excited by a light source. The first successful commercial application of photochromic materials began in the 1960s. Subsequently, a lot of research was done on its mechanism and application. Later on, color-changing glasses were developed. Photochromic compounds can generally be divided into two types: organic and inorganic. The first developed photochromic compounds are mainly organic compounds, and their photochromic activity mainly comes from the color change caused by bond cleavage, reorganization or conformational change. Among them, the basis of molecular motors, photo-induced cis-trans isomerization, is a typical system in the field of photochromism. In addition, spiropyran can hetero-cleavage the carbon-oxygen bond under UV irradiation to produce cyanine compounds that can be photoexcited to open the ring, which is a typical bond-cleavage photochromic system. In addition, salicylaldehyde ani...

In the past decade, major breakthroughs have been made in all aspects of material research, covering almost all material types. For instance, graphene , the value of which was not recognized initially, has been found to be potentially valuable in many electronic applications such as solar cells, transistors, camera sensors, digital screens, and semiconductors. Besides, research on other materials such as metals, bulk metallic glasses, high-performance alloys, ceramics and glass has been also intensified. Materials that developed quickly in the past 10 years Because composite materials and hybrid materials can withstand harsh environments, such as bulk materials, composite materials, and coating materials, they have been widely used in appropriate applications. Advances in coating technology have improved reliability of composite materials, contributing to their use in thermal protection and environmental protection systems. In more and more scenarios, layered material systems are r...

The research, development, and production of advanced technologies has uplifted the requirements on the materials to be used. Not only properties or performance, but also purity of these materials are greatly emphasized. Considering this, Alfa Chemistry Materials  recently announces that it is planning to enrich its supply of high purity materials . After the plan is fully implemented, multiple high purity and ultra-high purity materials, such as metals or magnetic, thermoelectric and semiconducting materials, will be available. High purity materials refer to a claimed purity of 99.9 percent or even greater. These highly pure materials are widely applied. For example, metals with high purity can be used in the creation of fluorescent lighting, plasma screens, LEDs, high-precision lenses and optics, electronic sensors, advanced ceramics, thermal barrier coatings, lasers, and more. “In terms of purity level, the high purity materials provided by our company are generally ranging...