• 专利标题:   Preparing poly(vinylidene fluoride-co-trifluoroethylene) composite film with controllable fluorescent used in multifunctional sensors, comprises mixing poly(vinylidene fluoride-co-trifluoroethylene) powder and rare earth ion co-doped beta-sodium yttrium fluoride nanoparticles and spin-coating.
  • 专利号:   CN115368598-A
  • 发明人:   HAN G, LIU K, CHEN R, REN Z, SHI J, ZHOU D
  • 专利权人:   ZHEJIANG LAB
  • 国际专利分类:   B82Y020/00, B82Y030/00, C08J005/18, C08K003/16, C08L027/16, C09K011/02, C09K011/77
  • 专利详细信息:   CN115368598-A 22 Nov 2022 C08J-005/18 202312 Chinese
  • 申请详细信息:   CN115368598-A CN10751606 28 Jun 2022
  • 优先权号:   CN10751606

▎ 摘  要

NOVELTY - Preparing poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-TrFE)) composite film with controllable fluorescent comprises (i) mixing P(VDF-TrFE) powder and rare earth ion co-doped β-sodium yttrium fluoride nanoparticles and dissolving in an organic solvent to form a uniform solution, (ii) dropping obtained uniform solution on the substrate, and spin-coating to form a film, and (iii) vacuum annealing on the spin-coated sample. USE - The thin film is used in multifunctional sensors e.g. optical sensor device (claimed). ADVANTAGE - The thin film realizes the selective enhancement of light emission of rare earth ions, and can change the light intensity by adjusting the orientation degree of the thin film, and realizes the coupling of force, electricity and light, and has important application prospects. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a P(VDF-TrFE) composite film with controllable fluorescent prepared by the method, where in the thin film, the rare earth ion co-doped β-sodium yttrium fluoride nanoparticles are attached to the surface of the P(VDF-TrFE) sheet crystal.