期刊
SOLAR ENERGY MATERIALS AND SOLAR CELLS
卷 128, 期 -, 页码 178-183出版社
ELSEVIER
DOI: 10.1016/j.solmat.2014.05.006
关键词
Organic photovoltaics; Atomic layer deposition; Encapsulation; Mechanical properties; Nanoindentation
资金
- Air Force Office of Scientific Research
Atomic layer deposition (ALD) was studied for ultra-thin (<= 100 nm) barrier coating deposition onto organic photovoltaics (OPVs) to enhance device lifetime. Herein, we report the first known investigation of the mechanical characteristics of AlOx encapsulated OPVs using nanoindentation and scratch testing with deposition temperature as a tunable parameter. The higher organic content in the AlOx film, grown at lower temperatures, enhanced the interfacial bonding at the AlOx-OPV interface and provided modulus and hardness performance exceeding that of a common polymer encapsulant Furthermore, AlOx's organic content impeded fracture propagation, confirming the durability enhancement associated with this approach. Published by Elsevier B.V.
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