Spin-Related Micro-Photoluminescence in Fe3+ Doped ZnSe Nanoribbons
AbstractSpin-related emission properties have important applications in the future information technology; however, they involve microscopic ferromagnetic coupling, antiferromagnetic or ferrimagnetic coupling between transition metal ions and excitons, or d state coupling with phonons is not well understood in these diluted magnetic semiconductors (DMS). Fe3+ doped ZnSe nanoribbons, as a DMS example, have been successfully prepared by a thermal evaporation method. Their power-dependent micro-photoluminescence (PL) spectra and temperature-dependent PL spectra of a single ZnSe:Fe nanoribbon have been obtained and demonstrated that alio-valence ion doping diminishes the exciton magnetic polaron (EMP) effect by introducing exceeded charges. The d-d transition emission peaks of Fe3+ assigned to the 4T2 (G) → 6A1 (S) transition at 553 nm and 4T1 (G) → 6A1 (S) transition at 630 nm in the ZnSe lattice have been observed. The emission lifetimes and their temperature dependences have been obtained, which reflected different spin–phonon interactions. There exists a sharp decrease of PL lifetime at about 60 K, which hints at a magnetic phase transition. These spin–spin and spin–phonon interaction related PL phenomena are applicable in the future spin-related photonic nanodevices. View Full-Text
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Hou, L.; Chen, C.; Zhang, L.; Xu, Q.; Yang, X.; Farooq, M.I.; Han, J.; Liu, R.; Zhang, Y.; Shi, L.; Zou, B. Spin-Related Micro-Photoluminescence in Fe3+ Doped ZnSe Nanoribbons. Appl. Sci. 2017, 7, 39.
Hou L, Chen C, Zhang L, Xu Q, Yang X, Farooq MI, Han J, Liu R, Zhang Y, Shi L, Zou B. Spin-Related Micro-Photoluminescence in Fe3+ Doped ZnSe Nanoribbons. Applied Sciences. 2017; 7(1):39.Chicago/Turabian Style
Hou, Lipeng; Chen, Cheng; Zhang, Li; Xu, Qiankun; Yang, Xinxin; Farooq, Muhammad I.; Han, Junbo; Liu, Ruibin; Zhang, Yongyou; Shi, Lijie; Zou, Bingsuo. 2017. "Spin-Related Micro-Photoluminescence in Fe3+ Doped ZnSe Nanoribbons." Appl. Sci. 7, no. 1: 39.
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