Journal
MATERIALS LETTERS
Volume 110, Issue -, Pages 253-255Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2013.08.045
Keywords
Diatoms; Europium; Photoluminescence; Metabolism
Funding
- 863 project [2012AA03A610]
- Hainan University
- 211 innovation platform of Hainan University
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Patterned, nanostructured, silicate-based phosphors with the capacity to convert light from near-UV to red wavelengths were synthesized via metabolic insertion of europium in live Navicula. Structural and photoluminescent properties of the sample were analyzed by X-ray diffraction, field emission scanning electron microscopy and a fluorescence spectrophotometer. Red emission (6.14 nm, D-5(0)-F-7(2)) was obtained at 394 nm due to the F-7(0)-L-5(5) transition of Eu3+. The novel red phosphors are a suitable candidate for white LED lighting applications because of their particle size, large surface area, and broadened excitation band in the near-UV range. (C) 2013 Elsevier B.V. All rights reserved.
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