The opticalbandgap between nano-TiO 2 energy band and conduction band is3.
纳米二氧化钛能带和导带之间的带隙能为3。
2
Results indicate that the opticalbandgap of the CN x films is decreased with the increasing nitrogen concentration, accompanied with the reflectance increase of the films.
结果表明：随着薄膜中氮含量的增加，碳氮薄膜的光学禁带宽度减小，红外反射率增加。
3
The ultraviolet absorption peak narrows, absorption intensity increases, the absorption margin becomes steep and moves to longer wavelength, the opticalbandgap decreases as well.