Light Down-Converter Based on Luminescent Nanofibers from the Blending of Conjugated Rod-Coil Block Copolymers and Perovskite through Electrospinning.
Dai-Hua JiangSaburo KobayashiChih-Chun JaoYoshinobu MatoTakuya IsonoYu-Han FangChun-Che LinToshifumi SatohShih-Huang TungChi-Ching KuoPublished in: Polymers (2020)
We demonstrated a novel strategy for the preparation of light down-converter by combining rod-coil block copolymers with perovskite quantum dots (QDs) through electrospinning. Reports have shown that polymer deformability can be enhanced by incorporating a soft segment and controlled by varying the rod/coil ratio. Therefore, we first synthesized the rod-coil block copolymer through the click reaction of polyfluorene (PF) and poly(n-butyl acrylate) (PBA). Next, the CsPbBr3@PF8k-b-PBA12k composite fibers were fabricated by blending perovskite through electrospinning. Optical spectral evidence demonstrated the success of the strategy, as light down-converters were prepared through the controlled variance of QD/polymer ratios to achieve tunable color and stretchability. This result reveals the potential of using rod-coil block copolymers to fabricate color-tunable perovskite light down-converters.
Keyphrases
- quantum dots
- room temperature
- high efficiency
- solar cells
- sensitive detection
- optical coherence tomography
- emergency department
- magnetic resonance imaging
- computed tomography
- risk assessment
- magnetic resonance
- mass spectrometry
- drug delivery
- high speed
- molecularly imprinted
- metal organic framework
- liquid chromatography