Bae Youn Jue, Cho Eun Seon, Qiu Fen, Sun Daniel T, Williams Teresa E, Urban Jeffrey J, Queen Wendy L
The Molecular Foundry, Materials Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States.
Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL) CH 1051 Sion, Switzerland.
ACS Appl Mater Interfaces. 2016 Apr 27;8(16):10098-103. doi: 10.1021/acsami.6b01299. Epub 2016 Apr 15.
Preventing the permeation of reactive molecules into electronic devices or photovoltaic modules is of great importance to ensure their life span and reliability. This work is focused on the formation of highly functioning barrier films based on nanocrystals (NCs) of a water-scavenging metal-organic framework (MOF) and a hydrophobic cyclic olefin copolymer (COC) to overcome the current limitations. Water vapor transmission rates (WVTR) of the films reveal a 10-fold enhancement in the WVTR compared to the substrate while maintaining outstanding transparency over most of the visible and solar spectrum, a necessary condition for integration with optoelectronic devices.
防止活性分子渗透到电子设备或光伏组件中对于确保其使用寿命和可靠性至关重要。这项工作的重点是基于用于清除水分的金属有机框架（MOF）的纳米晶体（NC）和疏水性环烯烃共聚物（COC）形成高性能阻挡膜，以克服当前的局限性。薄膜的水蒸气透过率（WVTR）显示，与基材相比，WVTR提高了10倍，同时在大部分可见光和太阳光谱范围内保持出色的透明度，这是与光电器件集成的必要条件。
