Abstract
All-inorganic dual-phase CsPbBr3-Cs4PbBr6 quantum dots (CPB QDs)-based polyacrylonitrile (PAN) fiber synthesized by supersaturated recrystallization and electrospinning technique possesses characteristics of homogeneous morphology, high crystallinity and solution sensitivity. Under 365 nm laser excitation, CPB@PAN fiber exhibits surprising trace-recording capability attributing to the splash-enhanced fluorescence (FL) performance with a narrow-band emission at 477-515 nm. In the process of ethanol anhydrous (EA) and water splashing, the CPB@PAN fiber presents conspicuous blue and green emission when contacting with EA and water, and maintains intense blue and green FL for more than 4 months. These experimental and theoretical findings provide a facile technology for the development of biological protection display, biotic detection and moisture-proof forewarning based on the trace-recording performance of CPB@PAN fiber.
| Original language | English |
|---|---|
| Article number | 095708 |
| Journal | Nanotechnology |
| Volume | 33 |
| Issue number | 9 |
| DOIs | |
| State | Published - 26 Feb 2022 |
| Externally published | Yes |
Keywords
- all-inorganic
- electrospinning
- perovskite quantum dots
- solution sensitivity
- splashenhanced fluorescence
- trace-recording
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