In recent years, with the extensive application of short wavelength devices, the research of direct widebandgapsemiconductor materials attracted more and more attention.
近年来，随着短波长光电器件的逐渐广泛应用，直接宽禁带半导体材料的研究越来越受到人们的重视。
2
Electronic band structure calculations show that sc-C20 is a semiconductor with widebandgap of 4.20 eV, and the gap increase with pressure, similar to that of diamond.