Photoluminescence and thermoluminescence properties of SnO2 nanoparticles embedded in Li2O-K2O-B2O3 with Cu-doping

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2013,（9）
• 页码范围: 72-75
• 页数: 4页
• 语种: 英文
• DOI: 10.3788/COL201311.091603

摘要

Cu-doped borate glass co-doped with SnO2 nanoparticles is fabricated by melt quenching.The structure and morphology of the samples are examined by X-ray diffraction and field emission scanning electron microscopy.Up-conversion enhancement is observed in the photoluminescence (PL) and thermoluminescence (TL) intensities of the glass.PL emission spectra are identified in the blue and green regions,and a fourfold increase in emission intensity may be observed in the presence of embedded SnO2 nanoparticles.The glow curve is recorded at 215 ℃,and fourfold increases in TL intensity are obtained by addition of 0.1 mol％ SnO2 nanoparticles to the glass.Higher TL responses of the samples are observed in the energy range of 15 100 KeV.At energy levels greater than ～0.1 MeV,however,flat responses are obtained.The activation energy and frequency factor of the second-order kinetic reaction are calculated by the peak shape method.