Cover Story  

出　　处：《Opto-Electronic Advances》2020年第4期I0001-I0001,共1页光电进展（英文）

摘　　要：The cutting edge in semiconductor light sources has moved into the ultraviolet.Developers are pushing the wide-bandgap Ⅲ-V gallium nitride compounds used in blue and violet lasers to shorter wavelengths by adding aluminum to increase the bandgap.In theory,that family can emit at wavelengths as short as 205 nm if the active layer is aluminum nitride.However,while high performance practical light sources are commercially available for visible and longer wavelength UV lasers,it is still a technical challenge to realize high performance UV lasers at wavelengths shorter than 280 nm(UV-C)due to the material challenges.

关 键 词：shorter ULTRAVIOLET VISIBLE 

分 类 号：TN248[电子电信—物理电子学]