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Novel Microstructured Si CNO Films Based on Polyvinylsilazane‐Swelled F127 Micelles
Author(s) -
Yu Yuxi,
Liu Yu,
Huang Qifan,
Yan Shaole,
Han Qingkai,
Fang Jiyu,
An Linan
Publication year - 2016
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.14017
Subject(s) - micelle , materials science , crystallization , microstructure , copolymer , chemical engineering , evaporation , rod , dielectric , polymer chemistry , composite material , polymer , chemistry , optoelectronics , organic chemistry , aqueous solution , medicine , physics , alternative medicine , pathology , engineering , thermodynamics
We report a facile route to synthesize novel microstructured Si CNO films via a block copolymer micellar‐templating approach, in which polyvinylsilazane ( PVSZ )‐swelled F127 micelles are used as a precursor and the crystallization of the PEO shell of PVSZ ‐swelled F127 micelles is used to control the microstructure of Si CNO films. By changing the evaporation temperature of multistep thermal treatments, Si CNO films containing nanospheres, rods, crosses, cuboids, and microspheres can be formed. We find that these microstructures have a significant effect on the dielectric loss of Si CNO films, which can be explained by the Maxwell–Wagner effects and impurities at interfaces.