Open AccessScalable Production of Mechanically Robust Antireflection Film for Omnidirectional Enhanced Flexible Thin Film Solar Cells
Author(s) -
Wang Min,
Ma Pengsha,
Yin Min,
Lu Linfeng,
Lin Yinyue,
Chen Xiaoyuan,
Jia Wei,
Cao Xinmin,
Chang Paichun,
Li Dongdong
Publication year - 2017
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.201700079
Subject(s) - materials science , omnidirectional antenna , optoelectronics , broadband , thin film , robustness (evolution) , photovoltaic system , anti reflective coating , scalability , nanotechnology , computer science , coating , electrical engineering , telecommunications , biochemistry , chemistry , engineering , antenna (radio) , gene , database
Antireflection (AR) at the interface between the air and incident window material is paramount to boost the performance of photovoltaic devices. 3D nanostructures have attracted tremendous interest to reduce reflection, while the structure is vulnerable to the harsh outdoor environment. Thus the AR film with improved mechanical property is desirable in an industrial application. Herein, a scalable production of flexible AR films is proposed with microsized structures by roll‐to‐roll imprinting process, which possesses hydrophobic property and much improved robustness. The AR films can be potentially used for a wide range of photovoltaic devices whether based on rigid or flexible substrates. As a demonstration, the AR films are integrated with commercial Si‐based triple‐junction thin film solar cells. The AR film works as an effective tool to control the light travel path and utilize the light inward more efficiently by exciting hybrid optical modes, which results in a broadband and omnidirectional enhanced performance.