Find Paper, Faster
Example:10.1021/acsami.1c06204 or Chem. Rev., 2007, 107, 2411-2502
Characterization of structural orientation and optical properties of Al and Cr in rubies
Radiation Physics and Chemistry  (IF2.776),  Pub Date : 2022-06-14, DOI: 10.1016/j.radphyschem.2022.110315
Atipong Bootchanont, Chakkaphan Wattanawikkam, Porramain Porjai, Wutthigrai Sailuam, Wutthikrai Busayaporn, Chatree Saiyasombat, Pinit Kidkhunthod, Jongrak Borsup, Prayoon Songsiriritthigul, Arreerat Jiamprasertboon, Tossaporn Lertvanithphol, Mati Horprathum, Patsaraporn Pengsri, Thanit Saisopa

We study the correlation between the structural orientation and the chromatic characteristics in rubies by combining X-ray diffraction (XRD), X-ray absorption spectroscopy (XAS), and density functional theory (DFT) calculations. The chemical compositions were investigated by X-ray fluorescence (XRF). XRD result shows the preferred orientation of Al2O3 crystals as the (113), (110), and (223) plans. The local site and structural orientation of Cr impurities were investigated by the XAS technique, which prefers [141] and [411] polarizations. The optical absorption energy was estimated according to UV–visible spectroscopy. The results show the impurity state that relates to the optical absorption and emission energies. More importantly, the results show that the information on the locally determined structures and their effect on energy levels in rubies were obtained and discussed.