Dual-mode blue emission, paramagnetic properties of Yb3+-Tm3+ co-doped GdOCl difunctional nanostructures

作者：Chen, Juan; Song, Yan; Li, Dan; Ma, Qianli; Dong, Xiangting^*; Yu, Wensheng; Yang, Ying; Wang, Jinxian; Liu, Guixia; Wang, Tingting

来源：Journal of Materials Science: Materials in Electronics , 2017, 28(24): 19038-19050.

DOI：10.1007/s10854-017-7858-6

• UP-CONVERSION LUMINESCENCE
• ELECTROSPINNING PREPARATION
• RECENT PROGRESS
• NANOFIBERS
• PHOTOLUMINESCENCE
• FABRICATION
• PHOSPHORS
• NANOPARTICLES
• NANOCRYSTALS
• CELLS

A series of GdOCl:Yb3+, Tm3+ one-dimensional nanostructures with dual-mode [down-conversion (DC) and up-conversion (UC)] luminescence were successfully fabricated by electrospinning technique incorporated with double-crucible chlorination method. The samples have single-phase tetragonal structure with space group of P4/nmm. The diameter and width of GdOCl:10%Yb3+, 0.1%Tm3+ nanofibers and nanobelts are 212.84 +/- 1.04 nm and 1.07 +/- 0.03 mu m, respectively. Excited by 357-nm ultraviolet (UV) light and 980-nm near-infrared (NIR) light, Yb3+ and Tm3+ ions co-doped GdOCl nanostructures exhibit bright blue emission. The mechanism of UC emission is determined to be three-photon process. The energy transfer processes from Yb3+ to Tm3+ are discussed in detail. Moreover, the as-obtained products possess paramagnetic properties at ambient temperature. The type of difunctional one-dimensional nanomaterials has promising applications in anti-counterfeiting, drug delivery, solid state lasers, biolabels and light emitting diodes (LEDs).

• 出版日期2017-12
• 单位长春理工大学