Fig. 5: The influence of large size PtNPs on the optical properties and lasing features of a single ZnO:Ga MW. | Light: Science & Applications

Fig. 5: The influence of large size PtNPs on the optical properties and lasing features of a single ZnO:Ga MW.

From: Electrically driven single microwire-based single-mode microlaser

Fig. 5

a Normalized lasing spectra of a single ZnO:Ga MW not decorated and decorated by PtNPs is given for a comparison. b SEM image of PtNPs prepared on a quartz substrate. c Normalized absorption spectrum of the as-prepared PtNPs. Inset: Enlarged absorption peak varying in the range of 390.7 ~ 447.1 nm. d Optical absorption spectra of a single ZnO:Ga MW and the same wire decorated by PtNPs. e PL spectra of a single ZnO:Ga MW not decorated and decorated by PtNPs. f Normalized TRPL spectra and exponential decay fitting curves at a wavelength of 390 nm of a single ZnO:Ga MW before and after PtNPs deposition

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