二维复合光栅减反膜的制备及其在太阳能电池中的应用  

Preparation of 2D Composite Grating Antireflection Coatings and Its Application in Solar Cells

作　　者：周伯川 方朝龙[2] 张耀举[3] ZHOU Bochuan;FANG Chaolong;ZHANG Yaoju(School of Computer and Artificial Intelligence,Wenzhou University,Wenzhou,Zhejiang 325035,China;Key Laboratory of Micro-Nano Optoelectronic Devices,School of Electrical and Electronic Engineering,Wenzhou University,Wenzhou,Zhejiang 325035,China;School of Electrical and Electronic Engineering,Wenzhou University,Wenzhou,Zhejiang 325035,China)

机构地区：[1]温州大学计算机与人工智能学院,浙江温州325035 [2]温州大学电气与电子工程学院微纳光电器件重点实验室,浙江温州325035 [3]温州大学电气与电子工程学院,浙江温州362000

出　　处：《光子学报》2021年第9期268-275,共8页Acta Photonica Sinica

基　　金：国家自然科学基金(No.61805179);温州市科技计划(No.S20180015);浙江省大学生科技创新活动计划(No.2019R429044)。

摘　　要：提出了利用二维复合光栅减小晶硅太阳能电池界面反射进而提高其光电转换效率的方法。该复合光栅是使用柔性聚二甲基硅氧烷材料对一维光栅进行纵向表面处理形成褶皱制备而成。扫描电子显微镜像显示二维复合光栅由纳米褶皱纵向均匀有序地分布在一维光栅表面。理论与试验证明与一维光栅相比,这种特殊形貌的二维复合光栅具有更加优越的抗反射性能,可更加有效地提高电池的转换效率。另外,二维复合光栅结构应用环氧树脂封装的太阳能电池表面可以减小灰尘颗粒粘附,提高材料表面的疏水性及表面的自清洁能力。A Two-dimensional(2D)composite grating is proposed to reduce the reflection of the interface of the epoxy-resin-encapsulated silicon solar cell and improve its photoelectric conversion efficiency.The 2D composite grating is prepared by longitudinally stretching One-dimensional(1D)Polydimethylsiloxane(PDMS)grating together with plasma surface modification.Scanning Electron Microscope(SEM)characterization of the 2D composite grating shows that nanowrinkles are longitudinally and orderly distributed on the surface of 1D grating.Optical measurement and theoretical simulation consistently demonstrate the 2D composite grating has superior antireflective property to 1D grating.Electrical characterization shows adding the 2D composite grating onto the epoxy-resin-encapsulated Si solar cell as an antireflective coating can improve the photoelectrical conversion efficiency,reduce the adhesion of dust particles and enhance the surface hydrophobicity and the self-cleaning property of Si solar cell.

关 键 词：太阳能电池减反膜 二维复合光栅 光俘获 转换效率 自清洁 

分 类 号：TM914.4[电气工程—电力电子与电力传动]