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Color Tunable Upconversion Emission in Yb , Er Co‐Doped Bismuth Titanate Inverse Opal
Author(s) -
Yang Zhengwen,
Yan Lei,
Yan Dong,
Song Zhiguo,
Zhou Dacheng,
Yin Zhaoyi,
Qiu Jianbei
Publication year - 2011
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2011.04663.x
Subject(s) - photon upconversion , materials science , bismuth titanate , doping , optoelectronics , photonic crystal , excitation , photonics , emission intensity , band gap , ion , optics , ferroelectricity , chemistry , physics , organic chemistry , quantum mechanics , dielectric
Upconversion emission of Yb , Er co‐doped Bi 4 Ti 3 O 12 ( Bi 4 Ti 3 O 12 : Yb , Er ) inverse opal photonic crystals was investigated. Strong green (548 nm) and red (660 nm) upconversion emission bands were observed under a 980 nm excitation at room temperature. The results showed that the intensity of upconversion emission bands can be tuned by controlling the structure of the inverse opal. Significant suppression of the green or red upconversion emission was obtained if the photonic band gap overlaps with the Er 3+ ions emission band, resulting in color tunable up‐conversion photonic crystals with applications in solid‐state color displays.