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Updated: Jan 18, 2026

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
Published on: June 28, 2018
Polarization-Dependent Multiphoton-Excited Self-Trapped Emission in Alloyed 0D Rb7Bi3Cl16 Metal Halides via Sb3+
Si Xiao1, Haixia Zhu1, Yao Liu2
1Hunan Key Laboratory of Nanophotonics and Devices School of physics Central South University 932 South Lushan Road Changsha Hunan 410083 China.
Abstract:
Regulating the electronic structure by doping can promote photoluminescence emission of low-dimensional metal halides for developing white-light-emitting devices. Here, 0D metal halides Rb7Bi3Cl16 have achieved a transition from nonluminescence to effective self-trapped excitons (STEs) emission after Sb3+ ion doping at room temperature. The femtosecond transient absorption spectrum reveals the nonradiative recombination was suppressed, whose lifetimes change from 93.9 ps to 3.6 ns after doping Sb3+ ion. Moreover, the Rb7Bi3Cl16:Sb3+ exhibits polarization-dependent two-photon photoluminescence and three-photon photoluminescence in the excitation wavelength range of 900-1200 nm, which further confirmed that STEs emission is extrinsic STEs by lattice deformation rather than defects. This work suggests that Sb3+ ion doping can effectively improve the luminescence properties of low-dimensional metal halides and promote the application potential in high-order nonlinear photoelectric field.
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