https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:19620 Wed 11 Apr 2018 11:52:54 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:18847 Sat 24 Mar 2018 08:03:15 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:26380 Sat 24 Mar 2018 07:33:04 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:28219 2+,Dy³⁺ with A1N addition and commercially used SrA1₂O₄:Eu²⁺,Dy³⁺ were compared. Their spectra were slowly recorded over the temperature range from 25 to 673 K (400 °C). A1N offers a higher temperature TL peak, which should lengthen the phosphor lifetime. However, both TL and RL, especially that below room temperature, reveal that there are additional decay paths for the samples of SrA1₂O₄:Eu²⁺,Dy³⁺ with A1N additions. These new defect sites reduce the phosphor efficiency. Some speculative models of potential sites are proposed and discussed. In addition, discontinuous intensity changes have been observed for both sample types in TL and RL spectra, which are assigned to the transitions of embedded impurity phases. The justification for this model is explained. Suggestions for future experimentation are also considered.]]> Sat 24 Mar 2018 07:28:30 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:26723 Sat 24 Mar 2018 07:26:21 AEDT ]]>