Fig.3 and Fig.4 show that grooves in the width of 1-2micrometer on the surface of films sputtered at 180℃ forms optic trap of solar spectrum in the range of 0.25~3micromete, and increase the absorption efficiency of solar radiation.
Fig.3 and Fig.4 show that grooves in the width of 1-2micrometer on the surface of films sputtered at 180℃ forms optic trap of solar spectrum in the range of 0.25~3micromete, and increase the absorption efficiency of solar radiation.
在温度约180℃的情况下的薄膜表面形貌，薄膜表面宽度为一两个微米沟槽，形成了对0.25~3微米太阳光谱的光学陷阱，可提高太阳光谱范围能量的吸收率。