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NIR Enhancement Based on Energy Transfer Process of Ce 3+ – Yb 3+ in Inverse Opal Photonic Crystals
Author(s) -
Wang Qi,
Qiu Jianbei,
Song Zhiguo,
Yang Zhengwen,
Yin Zhaoyi,
Zhou Dacheng,
Wang Siqin
Publication year - 2016
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/jace.14056
Subject(s) - photonic crystal , photonics , energy transfer , materials science , yttrium , band gap , optoelectronics , inverse , chemistry , molecular physics , metallurgy , oxide , geometry , mathematics
In this article, we fabricated Ce 3+ , Yb 3+ ‐coped yttrium aluminum garnet ( YAG ) inverse opal photonic crystals by a self‐assembly technique in combination with a sol–gel method. The photonic band gap was located at 545 nm. With the influence of the photonic band gap, cooperative down‐conversion energy transfer process of Ce 3+ ‐ Yb 3+ was investigated. It is significant that the energy transfer efficiency between Ce 3+ and Yb 3+ is enhanced from 29.6% to 47.6% by suppression of the yellow spontaneous emission of Ce 3+ . The mechanisms for the influence of the photonic band gap on cooperative down‐conversion process of Ce 3+ and Yb 3+ are discussed.