Enhancement of Emission Efficiency and Color Tuning by Mixing Platinum(II) and Palladium(II) Complexes in a One-dimensional Chain.

A series of mixed metal crystals comprising square-planar platinum(II) and palladium(II) complexes, K[M(CN)(dFppy)]·HO (M = Pt, Pd; dFppy = 2-(4,6-difluorophenyl)pyridinate), were prepared, and their unique luminescence properties-emerging upon mixing-were revealed. Seven mixed crystals with Pt/Pd ratios of 1:0.5, 1:1, 1:1.

Room-temperature electric field control of spin filtering efficiency for enhanced modulation of optical spin polarization in a defect-functional 0D-2D hybrid nanostructure.

In order to accomplish spin-based photoelectric information processing, it is necessary to modulate electron spin polarization in III-V semiconductor quantum dots (QDs) using an electric field. However, there is a principal limitation to the spin polarization degree and its control range, as the electron spin polarization is rapidly lost during injection into the QDs at room temperature (RT). Here, electric field control of optical spin polarization in the range of 15-40% is demonstrated at RT using InAs QDs tunnel-coupled with a defect-functional GaNAs quantum well (QW) spin filter.