WebEr3+. At an Er pea k concentration of 0.23 at. %, post-implantation thermal annealing up to 950 “C increases the photoluminescence intensity by a factor 40. This is a result of defect annealing, which increases the luminescence lifetime from 1 to 7 ms, as well as an increase in the Er3+ active fraction. Web7 de abr. de 2024 · This equipment has a resolution of ±0.0001. Up-conversion and luminescence spectroscopy under 980 nm at different excitation intensities were carried out with a Horiba iHR320 Photoluminescence Microspectrometer. The luminescence spectroscopy under 488 nm was performed with a Cary Eclipse Fluorescence …
Excitation dependent visible and NIR photoluminescence …
WebThe red emission through upconversion (UC) upon 980 nm excitation based on Er3+/Yb3+ combination is very ... NIR-NIR upconverting optical temperature sensing based on ... Web25 de fev. de 2024 · h GI tract imaging in NIR-IIc (1750–2250 nm) region in living mice gavaged with Tm(30Er)-NPs@PEG upon 800 nm, 980 nm, 1208 nm, and 1530 nm irradiation (120 mW/cm 2 for each), respectively. fly too close to the federal sun
Excitation dependent visible and NIR photoluminescence …
WebFluorescence intensity ratio (FIR) technique, based on the thermal coupling ofH11/22andS3/24energy levels of erbium ions, was used to study the optical heating behavior of rare earth doped yttrium oxide nanophosphors (Y2O3:Er3+, Y2O3:Er3+-Eu3+, Web3 de fev. de 2024 · When directly exciting the Er3+ green and red emitting states over the 333-773 K temperature range, the 800 nm photoluminescence for the samples is undetectable. It shows that the non-radiative relaxation from the upper excited states to the 4I9/2 emitting state is extremely inefficient. Web11 de out. de 2016 · The authors have tried to excite the sample with both the popular NIR (980 nm and 808 nm) ... Kumar K and Rai V K 2014 Structural and optical properties of Er3+/Yb3+ doped barium ... Nd3+ sensitized up/down converting dual-mode nanomaterials for efficient in vitro and in vivo bioimaging excited at 800 nm Sci. Rep. 3 3536. Crossref ... flytools/dnn