Spontaneous emission of semiconductor quantum dots in inverse opal SiO2 photonic crystals at different temperatures |
| |
| Authors: | Peng Yang Yingshu Yang Yinghui Wang Jiechao Gao Ning Sui Xiaochun Chi Lu Zou Han‐Zhuang Zhang |
| |
| Institution: | Femtosecond Laser Laboratory, Coherent light and Atomic and Molecular Spectroscopy Laboratory, College of Physics, Jilin University, Changchun, China |
| |
| Abstract: | The photoluminescence (PL) characteristics of CdSe quantum dots (QDs) infiltrated into inverse opal SiO2 photonic crystals (PCs) are systemically studied. The special porous structure of inverse opal PCs enhanced the thermal exchange rate between the CdSe QDs and their surrounding environment. Finally, inverse opal SiO2 PCs suppressed the nonlinear PL enhancement of CdSe QDs in PCs excited by a continuum laser and effectively modulated the PL characteristics of CdSe QDs in PCs at high temperatures in comparison with that of CdSe QDs out of PCs. The final results are of benefit in further understanding the role of inverse opal PCs on the PL characteristics of QDs. Copyright © 2015 John Wiley & Sons, Ltd. |
| |
| Keywords: | photonic crystals quantum dots photoluminescence temperature |
|
