High-Efficiency Omnidirectional Broadband Light-Management Coating Using the Hierarchical Ordered-disorder Nanostructures with Ultra Mechanochemical Resistance
High-Efficiency Omnidirectional Broadband Light-Management Coating Using the Hierarchical Ordered-disorder Nanostructures with Ultra Mechanochemical Resistance
复制标题
使用具有超机械化学抗性的分层有序无序纳米结构的高效全向宽带光管理涂层
DOI：
10.1021/acsami.9b00034
复制
发表时间：
2019
影响因子：
9.5
通讯作者：
Zhao, Hui
中科院分区：
文献类型：
--
作者：
Zhai, Shengjie;Zhao, Yihong;Zhao, Hui
高效的光管理纳米结构是各种光学应用的关键。然而，在实际实施中，这些结构由于需要抵抗机械磨损、侵蚀、化学暴露、紫外线辐射和因粉尘积累而导致的性能劣化而受到限制。为了解决这些关键的技术差距，我们在此报告了一种概念上不同的方法，采用嵌入多层光刻石墨烯的分层纳米结构，能够进行全方位宽带光管理，具有高光学透明度(>；90%)和高雾度(∼89%)，是光伏发电的理想选择，同时显示出对各种环境挑战的非凡稳健性，包括机械磨损、紫外线曝光、腐蚀、户外曝光和防止粉尘积累。报道的纳米结构可以很容易地结合到任何光电设备的表面，对涂覆的非晶硅太阳能电池的实际测试表明，它的表现优于最先进的商业涂层，在防止粉尘积累的同时保持了10%的效率提高，而商业涂层在室外测试1个月后效率下降了56.2%。
High-efficient light-management nanostructures are critical to various optical applications. However, in practical implementation, these structures have been limited by the need to resist mechanical abrasion, erosion, chemical exposure, ultraviolet radiation, and performance deterioration by dust accumulation. To address these critical technological gaps, we herein report a conceptually different approach, employing a hierarchical nanostructure embedded with multilayer LightScribe-etched graphene, capable of omnidirectional broadband light management with both high optical transparency (>90%) and high haze (∼89%), ideal for photovoltaics, which simultaneously demonstrates extraordinary robustness to various environmental challenges ranging from mechanical abrasion, UV exposure, corrosions, outdoor exposures to resistance to dust accumulation. The reported nanostructures can be readily combined to any optoelectrical device’s surface, and the practical tests on coated amorphous silicon solar cells show that it outperforms the state-of-the-art commercial coating by maintaining both 10% efficiency improvement along with the prevention of dust accumulation in contrast to 56.2% efficiency degradation with the commercial coating after the 1 month outdoor test.