E-beam evaporation equipped with glancing angle deposition arrangement (GLAD) was used to fabricate nanostructured polytetrafluoroethylene (PTFE) films in a single-step coating process. Three sets of PTFE coatings were prepared using various oblique angles, e-beam currents, and deposition times to explore the effects of deposition parameters on the properties of PTFE nanostructured coatings. Water contact angle (WCA) of the coatings was found to be enhanced with the increase in all the above process parameters. Optical transmittance of the coatings was also found to be improved with the above parameters except for in the case of an increase in thickness of the films (in very high thickness region), where the transmittance was degraded due to light scattering from the sample surface. After all the optimizations, the ~ 130-nm-thick GLAD PTFE sample prepared with highest e-beam current was found to be more suitable for antireflection and self-cleaning applications. The single-sided coating demonstrates a very high average transmittance of ~ 95.6% (with a wideband transmittance spectrum among the others) in the visible and NIR wavelength range with excellent self-cleaning nature (WCA ~ 156°, sliding angle ~ 10°). The trend of measured WCA with respect to surface roughness follows the Cassie–Baxter model. Overall, the study demonstrates the possibility of fabricating highly transparent self-cleaning coatings using the GLAD technique, which is potentially useful for fabricating protecting cover glasses in solar panels.

配备掠射角沉积装置（GLAD）的电子束蒸发技术用于在一步涂覆过程中制备纳米结构的聚四氟乙烯（PTFE）薄膜。使用各种斜角，电子束电流和沉积时间制备了三套PTFE涂层，以探索沉积参数对PTFE纳米结构涂层性能的影响。发现随着上述所有工艺参数的增加，涂层的水接触角（WCA）得到增强。还发现用上述参数可以改善涂层的透光率，除了在膜厚度增加的情况下（在非常高的厚度区域），由于从样品表面的光散射，透光率降低了。经过所有优化后，发现用最高的电子束电流制备的〜130 nm厚的GLAD PTFE样品更适合抗反射和自清洁应用。该单面涂层在可见光和NIR波长范围内表现出非常高的平均透射率〜95.6％（具有宽带透射光谱），具有出色的自清洁特性（WCA〜156°，滑动角〜10°） 。WCA测量值相对于表面粗糙度的趋势遵循Cassie–Baxter模型。总的来说，这项研究表明了使用GLAD技术制造高度透明的自洁涂层的可能性，该技术对于制造太阳能电池板的保护玻璃很有用。该单面涂层在可见光和NIR波长范围内表现出非常高的平均透射率〜95.6％（具有宽带透射光谱），具有出色的自清洁特性（WCA〜156°，滑动角〜10°） 。WCA测量值相对于表面粗糙度的趋势遵循Cassie–Baxter模型。总的来说，这项研究表明了使用GLAD技术制造高度透明的自清洁涂层的可能性，这对于制造太阳能电池板的保护玻璃很有用。该单面涂层在可见光和NIR波长范围内显示出非常高的平均透射率〜95.6％（具有宽带透射光谱），具有出色的自清洁特性（WCA〜156°，滑动角〜10°） 。WCA测量值相对于表面粗糙度的趋势遵循Cassie–Baxter模型。总的来说，这项研究表明了使用GLAD技术制造高度透明的自清洁涂层的可能性，该技术对于制造太阳能电池板的保护玻璃很有用。WCA测量值相对于表面粗糙度的趋势遵循Cassie–Baxter模型。总的来说，这项研究表明了使用GLAD技术制造高度透明的自洁涂层的可能性，该技术对于制造太阳能电池板的保护玻璃很有用。WCA测量值相对于表面粗糙度的趋势遵循Cassie–Baxter模型。总的来说，这项研究表明了使用GLAD技术制造高度透明的自清洁涂层的可能性，这对于制造太阳能电池板的保护玻璃很有用。