Abstract
Large-size and high-quality anthracene single crystals were prepared simply by solution technique. The basal planes correspond to (001) face and two large lateral faces of the anthracene crystals determined to be the (100) plane can also be obtained. The optical properties of the obtained anthracene single crystals were studied. The results indicate that anthracene can be a good window material up to 410 nm as the transmittance of the obtained crystal is around 70% from 800 nm to 410 nm and the band gap energy is 3.02 eV. The dielectric components in x-, y- and z-directions of the obtained crystals were extracted by fitting the results from spectroscopic ellipsometry and the results indicate the dielectric anisotropy of anthracene single crystals. The reflectivity calculated from the permittivity is close to the measured results.
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