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- W2099496621 endingPage "6543" @default.
- W2099496621 startingPage "6543" @default.
- W2099496621 abstract "Nanoparticle thin films (NTFs) exhibit multifunctionality, making them useful for numerous advanced applications including energy storage and conversion, biosensing and photonics. Poor mechanical reliability and durability of NTFs, however, limit their industrial and commercial applications. Atomic layer deposition (ALD) represents a unique opportunity to enhance the mechanical properties of NTFs at a relatively low temperature without drastically changing their original structure and functionality. In this work, we study how ALD of different materials, Al2O3, TiO2, and SiO2, affects the mechanical properties of TiO2 and SiO2 NTFs. Our results demonstrate that the mechanical properties of ALD-reinforced NTFs are dominantly influenced by the mechanical properties of the ALD materials rather than by the compositional matching between ALD and nanoparticle materials. Among the three ALD materials, Al2O3 ALD provides the best enhancement in the modulus and hardness of the NTFs. Interestingly, Al2O3 ALD is able to enhance not only the modulus and hardness but also the toughness of NTFs. Our study presents an additional benefit of depositing nanometer scale ALD layers in NTFs; that is, we find that the hardness and modulus of ultrathin ALD layers (<5 nm) can be estimated from the mechanical properties of ALD-reinforced NTFs using a simple mixing rule. This investigation also provides insight into the use of nanoindentation for testing the mechanical properties of ultrathin ALD-reinforced NTFs." @default.
- W2099496621 created "2016-06-24" @default.
- W2099496621 creator A5034326796 @default.
- W2099496621 creator A5034661797 @default.
- W2099496621 creator A5084778818 @default.
- W2099496621 creator A5086030263 @default.
- W2099496621 date "2012-01-01" @default.
- W2099496621 modified "2023-10-09" @default.
- W2099496621 title "Mechanical properties of atomic layer deposition-reinforced nanoparticle thin films" @default.
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- W2099496621 doi "https://doi.org/10.1039/c2nr32016a" @default.