PHOTONIC BAND GAP EFFECT ON ENERGY TRANSFER IN Tb3+, Eu3+ CO-DOPED TiO2 INVERSE OPAL FILMS
2013 ◽
Vol 27
(14)
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pp. 1350099
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Keyword(s):
Band Gap
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The energy transfer from Tb 3+ to Eu 3+ co-doped TiO 2( TiO 2: Tb , Eu ) inverse opal photonic crystals was investigated by photoluminescence. The results showed that the photonic band gap enhanced energy transfer from the donor Tb 3+ to the acceptor Eu 3+. When the fluorescence emission wavelength of Tb 3+ overlaps with the photonic band gap, the fluorescence intensity of Tb 3+ is suppressed, while the fluorescence intensity of Eu 3+ is enhanced. Energy transfer efficiencies were attributed to the tuning effects of energy transfer in the photoluminescence process by photonic crystal structure.
Photo-Induced Photonic Band Gap Shift of SiO2 Inverse Opal Films Infiltrated by Azo-Tolane Copolymer
2010 ◽
Vol 516
(1)
◽
pp. 174-181
2018 ◽
Vol 194
◽
pp. 420-423
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