Wentao Hao

K+-Doped Cs2NaInCl6 Nanocrystals with Enhanced Nonlinear Absorption and Optical Limiting for Laser Protection Applications

Abstract To address intrinsic parity-forbidden transitions, strong electron-phonon coupling, and defect-assisted nonradiative recombination in Cs2NaInCl6 nanocrystals, K-doped Cs2NaInCl6:xK+ (x = 0−1) nanocrystal powders were synthesized via a hot-injection method. The powders we...

Synergistic Grain Refinement and Insulating Phase Formation via Zr4+ Doping for Low-Loss Colossal Permittivity in (In,Nb) Codoped TiO2 Ceramics

Abstract Colossal permittivity (In,Nb) codoped TiO2 ceramics are promising for microelectronic applications but suffer from high low-frequency dielectric loss primarily due to leakage currents across grain boundaries. This work demonstrates that Zr4+ doping at Ti-sites in (In0.5N...