LiYF4:Yb/LiYF4 and LiYF4:Yb,Er/LiYF4 core/shell nanocrystals with luminescence decay times similar to YLF laser crystals and the upconversion quantum yield of the Yb,Er doped nanocrystals
Sign Up to like & getrecommendations! Published in 2020 at "Nano Research"
DOI: 10.1007/s12274-020-3116-y
Abstract: We developed a procedure to prepare luminescent LiYF 4 :Yb/LiYF 4 and LiYF 4 :Yb,Er/LiYF 4 core/shell nanocrystals with a size of approximately 40 nm revealing luminescence decay times of the dopant ions that approach… read more here.
Keywords: liyf; core shell; liyf4 liyf4; shell nanocrystals ... See more keywords
Seasonal variations in vertical distribution of meteor decay time as observed from meteor radars at 8.5°N and 80°N
Sign Up to like & getrecommendations! Published in 2019 at "Advances in Space Research"
DOI: 10.1016/j.asr.2018.11.019
Abstract: Abstract The decay times of meteor radar echoes have been used for decades to investigate characteristics of the mesosphere and lower thermosphere (MLT) region. As the meteor echo decay time depends on background atmospheric parameters,… read more here.
Keywords: decay time; meteor decay; decay times; time ... See more keywords
The impact of water loading on postglacial decay times in Hudson Bay
Sign Up to like & getrecommendations! Published in 2018 at "Earth and Planetary Science Letters"
DOI: 10.1016/j.epsl.2018.02.043
Abstract: Abstract Ongoing glacial isostatic adjustment (GIA) due to surface loading (ice and water) variations during the last glacial cycle has been contributing to sea-level changes globally throughout the Holocene, especially in regions like Canada that… read more here.
Keywords: postglacial decay; decay; water; decay time ... See more keywords
Upconversion luminescence from magnetron-sputtered Er3+-doped TiO2 films: Influence of deposition- and annealing temperatures and correlation to decay times
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Physics"
DOI: 10.1063/1.5037059
Abstract: The optical properties of radio-frequency magnetron sputtered Ti O 2 thin films doped with E r 3 + are strongly influenced by the deposition and post-annealing temperatures. This has an impact on the applications of… read more here.
Keywords: deposition; energy; decay times; post annealing ... See more keywords