Abstract
One-step precipitation of CsPbBr3 QDs in silicate glass was successfully achieved by picosecond laser pulses. Enabled by spatially selective modification, luminescent QDs are well protected by the inorganic glass matrix. The combination of high-power and high-speed scanning system provides a convenient and flexible route for large-scale in situ fabrication of CsPbBr3 QDs. The dependence of photoluminescence (PL) intensity and absorption band was systematically investigated, and the formation mechanism was briefly discussed. Notable stabilities of CsPbBr3 QDs against moisture, high temperature as well as ultraviolet (UV) radiation were verified by water-proof and thermal/UV-dependent PL tests. Prospective use for light-emitting device and anti-counterfeiting were also demonstrated.
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