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Abnormal Transmittance of Refractive‐Index‐Modified ZnO/Organic Hybrid Films
Author(s) -
Tsuzuki Takuya
Publication year - 2008
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.200700326
Subject(s) - refractive index , materials science , nanocomposite , transmittance , high refractive index polymer , transparency (behavior) , particle (ecology) , composite material , optics , optoelectronics , oceanography , physics , political science , law , geology
The refractive index of ZnO/organic nanocomposite films was modified in the range from 1.44 to 1.55, while maintaining high visible transparency. The transparency of the nanocomposite films showed an abnormal behaviour as a function of the loading level of inorganic particles, because it did not decrease according to the Beer‐Lambert law, but rather saturated to a near‐constant value at high particle loading levels above ≈8 vol.‐%. On the other hand, the refractive index of the film showed good agreement with the Bruggemann model, linearly increased as particle concentration increased. This result indicates the possibility of fabricating highly transparent nanocomposite films with controlled refractive indices.