太阳热利用这项技术日益显示出它的重要性。在民用上,它的应用范围也已从简单的洗澡用热水器,扩展到暖气、冷气等调温设备,要有效地收集并利用太阳热能,最根本的一点就是要研制优良的太阳能集热器。这方面,以集热板表面的选择吸收膜的研究最为深入。该选择吸收膜在太阳放射光谱区域(波长λ为0.3～2微米)应有高的吸收率(吸收率α≈1),在 Solar thermal technology has increasingly shown its importance. In civil applications, it has also expanded its range of applications from simple shower heaters to thermostats such as heating and air conditioning. To effectively collect and utilize solar thermal energy, the most fundamental point is to develop good solar collectors. In this regard, to select the surface of the collector plate absorbing film the most in-depth study. The selective absorbing film should have a high absorptivity (absorptance? 1) in the solar radiation spectrum region (wavelength [lambda] of 0.3 to 2 [mu] m)