Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7907717 | Optical Materials | 2018 | 6 Pages |
Abstract
Blue light converted light-emitting diodes is of great significance as a candidate for next generation lighting. In this work, the WO3:Eu3+ inverse opal photonic crystals were prepared and their luminescence properties were studied. The results demonstrated that the main excitation peak of WO3:Eu3+ inverse opals were located at 465Â nm. The red luminescence peak at the 613Â nm was observed in the WO3:Eu3+ inverse opal upon 465Â nm excitation, exhibiting better red color purity. The influence of photonic band gap on the photoluminescence of WO3:Eu3+ inverse opal was obtained. When the red luminescence peak is in the regions of the photonic band gap and the edge of the band-gap, the red luminescence suppression and enhancement was observed respectively. The WO3:Eu3+ inverse opals may be a promising candidate for the blue light converted LEDs.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Jiufeng Ruan, Zhengwen Yang, Anjun Huang, Zhuangzhuang Chai, Jianbei Qiu, Zhiguo Song,