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A microwave synthetic method has been developed for novel electroluminescent Ir(III)-polypyridine complexes. The novel Ir(III)-polypyridine complexes give intensively multi-colored luminescence whose emission peaks are occurred ranging from 450 to 630 nm. The chemical properties and electroluminescence character of these Ir(III) complexes are studied. These Ir complexes exhibit red electrophosphorescence...
Luminescence spectra have been measured in TlBr doped with iodine ions under pulsed-light excitation. Two broad emission bands were observed at 2.2 and 2.45eV. The emission band at 2.2eV decays non-exponentially below 20K and was attributed to radiative annihilation of a localized exciton bound to an I - ion formed by tunneling a hole to an electron trapped at a distant lattice position. The...
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