Synthesis and photoluminescent characteristics of Sm3+ -doped Ba-3(PO4)(2) phosphor hierarchical architectures
- Authors
- Ballipalli, Chandra Babu; Rajavaram, Ramaraghavulu; Naresh, V; Thatikayala, Dayakar; Kim, Dohyun; Shin, Dong Su; Baker, Andrew P.; Wang, Gui-Gen; Park, Jin sub
- Issue Date
- Feb-2021
- Publisher
- ELSEVIER
- Keywords
- Ba-3(PO4)(2); Hierarchical architectures; Wet chemical method; Yellow phosphors; Sm3+ ion
- Citation
- MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, v.264, pp.1 - 9
- Indexed
- SCIE
SCOPUS
- Journal Title
- MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
- Volume
- 264
- Start Page
- 1
- End Page
- 9
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/1598
- DOI
- 10.1016/j.mseb.2020.114979
- ISSN
- 0921-5107
- Abstract
- Highly uniform, petal-like, 3D-structured Ba-3(PO4)(2) phosphors were fabricated by facile wet chemical aqueous solution route. The production mechanism of Ba-3(PO4)(2) petal structure was optimized using XRD and SEM analysis grown under various temperatures and reaction times. Phase transition of Ba-3(PO4)(2) from the hexagonal to rhombohedral occurred with increasing reaction temperature. The Rietveld refinement based XRD phase analysis demonstrated the successful formation of monophase Ba-3(PO4)(2). Later, Ba-3(PO4)(2) was doped with various amounts of Sm3+ ions and with charge balance by Li+ ions. Ba-3(PO4)(2): Sm3++Li+ samples at 0.06 mol of Sm3+ concentration displayed maximum luminescence intensity in response to 402 nm excitation. Increasing the Sm3+ content over the 0.06 mol, emission quenching behavior was observed and it was explained by Dexter's theory. The chromaticity coordinates of the Ba-3(PO4)(2):Sm3++Li+ phosphor material were calculated to be (0.5558, 0.4380), suggesting that it will be a potential yellow phosphor for use in W-LEDs in combination with blue LEDs chips.
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