Growth And Aggregation Of Cu Nanocrystals On Ionic Liquid Surfaces
CHINESE PHYSICS B(2020)
摘要
We report a catalyst-free growth of Cu nanocrystals on ionic liquid surfaces by thermal evaporation method at room temperature. After deposition of Cu on ionic liquid surfaces, ramified Cu aggregates form. It is found that the aggregates are composed of both granules and nanocrystals with triangular or hexagonal appearances. The sizes of the nanocrystals are in the range of tens to hundreds of nanometers and increase with the nominal deposition thickness. The growth mechanism of the Cu aggregates and nanocrystals is presented.
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关键词
ramified aggregates,Cu nanocrystals,liquid substrates,critical state
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