title: Radiolytic production of Ag-containing nanocomposite colloids in presence of lithium ions.
abstract: This research is motivated to prepare homogeneous and less aggregated nanostructured composites for potential scintillators. Poly ethylene glycol (PEG)-protected approximately 5 nm and approximately 29 nm sized Ag nanoparticles and Ag-Zn nanocomposites were relatively prepared by electron-beam irradiation on Ag+ and Zn2+ solutions with the aids of stabilizers and 6Li+ at room temperature under atmospheric pressure. Especially the 6Li+, which was used for a neutron absorption purpose, played a part the Ag-Zn nanocolloids to less aggregate in the aqueous phase by making partial complexes with stabilizers containing Ag-Zn. To be a potential scintillator, the Ag-Zn nanocomposites have to show an optical response to radiation. Therefore, optical luminescence, which resembles the concept of detecting light without the requirement of a neutron absorbent (convertor) for a neutron scitillator, of the nanocomposites was tested.
authors.affiliation: Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute, 150 Deokjin-dong, Yuseong-gu, Daejeon 305-353, Republic of Korea.
authors.forename: Hee-Jung
authors.initials: HJ
authors.lastname: Im
authors.forename: Kwang-Soon
authors.initials: KS
authors.lastname: Choi