Fig. 5: Fabrication of the bulk glass-QDs-nAg (where QDs: quantum dots, nAg: silver nanoparticles) nanocomposite with the NanoParticle Direct Doping (NPDD) method.
From: Ultrafast photoluminescence and multiscale light amplification in nanoplasmonic cavity glass

Raw materials: (a) sodium borophosphate (NBP) glass powder, (b) nAg powder and the extinction spectrum of nAg-doped NBP glass, and (c) CdTe QD powder, including its aqueous dispersion with extinction (left) and PL (right) spectra. d Scheme of the NPDD method. Images and schemes of the fabricated NBP glass rods doped with (e) 0.3 wt% CdTe quantum dots, NBP:CdTe(0.3) and (f) 0.3 wt% CdTe QDs and 0.4 wt% nAg, NBP:CdTe(0.3)nAg(0.4). CdTe QD diameter = 1.5 nm, λem = 510 nm, and nAg diameter = 20 nm. Scale bars in Figs. 5e and 5f show the length of 2 cm.