Tantalum pentoxide film has a huge application potential in microelectronic field owing to its good chemical stability and thermal stability, and its good compatibility with semiconductor integrated circuit. In addition, Tantalum pentoxide film also has a high dielectric constant, a high refractive index, low absorption rate and a wide spectral range from 300nm to 1000nm in the visible spectral region. At present, it has a wide application in antireflection coatings, lasers, optical communication, solar wafers and so on. This review will focus on the preparation methods of Tantalum pentoxide film, and tantalum pentoxide film’s property and application, which are better for us to choose an appropriate method in an appropriate occasion.
In order to cure the cataract disease or injuries in eyes, intraocular lens(IOL) has been studied all the time to replace the crystalline lens in human eyes. Researches on IOL are started early from 19th century, and it develops greatly in the hundreds years after. This article introduces several main kinds of IOLs that appear in the development history of IOL, and raises the double-liquid zoom IOL based on electrowetting, which will be the trend of IOL study.