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Unusual crystal structure of 12CaO·7Al 2 O 3 is composed by a framework of positively charged nanocages, which enable accommodation of various negative ions (and even electrons) inside these cages. Different filling of cages leads to significant changes in electronic structure and as the result in luminescence properties, as well. Luminescence was studied using time-resolved spectroscopy...
The relaxation of electronic excitations in CdWO 4 and CaWO 4 crystals was studied using the method of time-resolved interferometry with 100-fs temporal resolution at temperatures 15–295K. The electronic system was excited in the one-photon and two-photon regime within the excitonic band in CaWO 4 and in the electron-hole continuum in CdWO 4 . Immediate trapping of...
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