Tetranuclear Copper(I) Iodide Complexes: A New Class of X-ray Phosphors

0474175 - ÚACH 2018 RIV US eng J - Journal Article
Kirakci, Kaplan - Fejfarová, Karla - Martinčík, Jiří - Nikl, Martin - Lang, Kamil
Tetranuclear Copper(I) Iodide Complexes: A New Class of X-ray Phosphors.
Inorganic Chemistry. Roč. 56, č. 8 (2017), s. 4609-4614. ISSN 0020-1669. E-ISSN 1520-510X
R&D Projects: GA ČR(CZ) GA16-15020S; GA MŠMT(CZ) LO1603
Institutional support: RVO:61388980 ; RVO:68378271
Keywords : thermochromic-luminescence * photodynamic therapy * nanoparticles
OECD category: Inorganic and nuclear chemistry; Condensed matter physics (including formerly solid state physics, supercond.) (FZU-D)
Impact factor: 4.700, year: 2017

We report intensive visible light radioluminescence upon X-ray irradiation of archetypal tetranuclear copper(I) iodide complexes containing triphenylphosphine or pyridine ligands in the solid state. These properties, attractive for the design of X-ray responsive materials, can be attributed to the heavy {Cu4I4} cubane-like core, the absence of oxygen quenching of the emissive triplet states, and the high photoluminescence quantum yields. Radioluminescence originates from the same emissive triplet states as those produced by ultraviolet excitation as confirmed by the observed radioluminescence thermochromism. The radioluminescence properties are also preserved after incorporation of these complexes into polystyrene films, making them appealing for the development of plastic scintillators.
Permanent Link: http://hdl.handle.net/11104/0271436


Research data: ACS publications