Najafi, ArmanSharma, ManojDelikanli, SavasBhattacharya, ArinjoyMurphy, Joseph R.Pientka, JamesPetrou, Athos2024-07-052024-07-0520211948-718510.1021/acs.jpclett.1c003982-s2.0-85103607805https://doi.org/10.1021/acs.jpclett.1c00398https://hdl.handle.net/20.500.14411/2073SHARMA, MANOJ/0000-0002-0601-2665; Demir, Hilmi Volkan/0000-0003-1793-112X; Delikanli, Savas/0000-0002-0613-8014; Erdem, Onur/0000-0003-2212-965X; Najafi, Arman/0000-0002-8022-5095; Murphy, Joseph/0000-0002-9947-995X; Bhattacharya, Arinjoy/0000-0002-8019-4233; Sharma, Manoj/0000-0001-5215-9740; Pientka, James/0000-0003-3167-4246We describe a study of the magneto-optical properties of Ag+-doped CdSe colloidal nanoplatelets (NPLs) that were grown using a novel doping technique. In this work, we used magnetic circularly polarized luminescence and magnetic circular dichroism spectroscopy to study light-induced magnetism for the first time in 2D solution-processed structures doped with nominally nonmagnetic Ag+ impurities. The excitonic circular polarization (P-X) and the exciton Zeeman splitting (Delta E-Z) were recorded as a function of the magnetic field (B) and temperature (T). Both Delta E-Z and P-X have a Brillouin-function-like dependence on B and T, verifying the presence of paramagnetism in Ag+-doped CdSe NPLs. The observed light-induced magnetism is attributed to the transformation of nonmagnetic Ag+ ions into Ag2+, which have a nonzero magnetic moment. This work points to the possibility of incorporating these nanoplatelets into spintronic devices, in which light can be used to control the spin injection.eninfo:eu-repo/semantics/openAccess[No Keyword Available]ArticleQ1121128922899WOS:0006354415000263372484519