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• W4376641189 endingPage "4821" @default.
• W4376641189 startingPage "4815" @default.
• W4376641189 abstract "Electrically pumped halide perovskite laser diodes remain unexplored, and it is widely acknowledged that continuous-wave (CW) lasing will be a crucial step. Here, we demonstrate room-temperature amplified spontaneous emission of Fe-doped CsPbBr3 crystal microwire excited by a CW laser. Temperature-dependent photoluminescence spectra indicate that the Fe dopant forms a shallow level trap states near the band edge of the lightly doped CsPbBr3 microcrystal. Pump intensity-dependent time-resolved PL spectra show that the introduced Fe dopant level makes the electron more stable in excited states, suitable for the population inversion. The emission peak intensity of the lightly Fe-doped microwire increases nonlinearly above a threshold of 12.3 kW/cm2 under CW laser excitation, indicating a significant light amplification. Under high excitation, the uniform crystal structure and surface outcoupling in Fe-doped perovskite crystal microwires enhanced the spontaneous emission. These results reveal the considerable promise of Fe-doped perovskite crystal microwires toward low-cost, high-performance, room-temperature electrical pumping perovskite lasers." @default.
• W4376641189 created "2023-05-17" @default.
• W4376641189 creator A5032527095 @default.
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• W4376641189 date "2023-05-16" @default.
• W4376641189 modified "2023-10-16" @default.
• W4376641189 title "Light Amplification in Fe-Doped CsPbBr₃ Crystal Microwire Excited by Continuous-Wave Laser" @default.
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• W4376641189 doi "https://doi.org/10.1021/acs.jpclett.3c00277" @default.
• W4376641189 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37191350" @default.
• W4376641189 hasPublicationYear "2023" @default.
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