Red-light-emitting polymer composite based on PVDF membranes and Europium phosphor using Buriti Oil as plasticizer

Author(s)

Bispo-Jr, Airton Germano ; Oliveira, Nagyla Alves ^{[1, 2]} ; Cardoso, Celso Xavier ^[1] ; Marques Lima, Sergio Antonio ^{[1, 2]} ; Job, Aldo Eloizo ^[1] ; Osorio-Roman, Igor Orlando ^[1] ; Danna, Caroline Silva ^{[1, 3]} ; Pires, Ana Maria ^{[1, 2]}

Affiliation

^[1] Bispo-Jr, Jr., Airton Germano, Sao Paulo State Univ Unesp, Sch Technol & Sci, BR-19060900 Presidente Prudente, SP - Brazil

^[2] Bispo-Jr, Jr., Airton Germano, Sao Paulo State Univ Unesp, Inst Biosci Humanities & Exact Sci, BR-15054000 Sao Jose Do Rio Preto, SP - Brazil

^[3] Univ Chile, Fac Ciencias, Dept Fis, Santiago 8370415 - Chile

• Document type: Journal article
• Source: Materials Chemistry and Physics; v. 217, p. 160-167, SEP 15 2018.
• Web of Science Citations: 3

Abstract

Rare-earth-doped phosphors immobilized in polymeric matrices find many applications like LEDs. However, little emphasis has been paid to the phosphor and plasticizer effect on the polymer structural, morphological and spectroscopic properties, for the development of functional devices. In this study, we are reporting for the first time the use of Buriti Oil (BO), a natural oil, as plasticizer in Ba2SiO4:Eu3+-doped PVDF composites membranes. Both, Buriti oil and phosphor amount were varied in the membrane synthesis. The drying temperature at 60 degrees C leads to the formation of the alpha-PVDF and the increase of the amount of BO up to 400 mu L decreases the PVDF crystallinity. Furthermore, the BO and phosphor additions increase the membrane thermal stability. Finally, the composite obtained with 10 wt% of Ba2SiO4:Eu3+ shows relative intense red emission with maximum at 612 nm originating from the Eu3+ radiative transitions in Ba2SiO4 lattice, making this composite material a good candidate for optical devices. (AU)

• FAPESP's process: 12/13876-9 - Optical and Structural effects of Eu(III) doping ion concentration in the Ba2SiO4 host lattice synthesized via sol-gel method
• Grantee: Airton Germano Bispo Júnior
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• FAPESP's process: 15/10394-1 - LBL luminescent thin films of rare earth doped Ba2SiO4 obtained via sol-gel for white LED application
• Grantee: Airton Germano Bispo Júnior
• Support Opportunities: Scholarships in Brazil - Master
• FAPESP's process: 16/20421-9 - Tricolor devices based on Ba2SiO4:Eu3+ e/ou Tb3+: sol-gel synthesis and eletrophoretic deposition for W-LEDs application
• Grantee: Airton Germano Bispo Júnior
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)