Structural and optical characterization of NaGdF{sub 4}: Ho{sup 3+}/Yb{sup 3+} UC nano-particles for lateral finger mark detections
- Optical Materials and Bio-imaging Research Laboratory Department of Applied Physics, Indian School of mines, Dhanbad-826004 (India)
Ho{sup 3+}/Yb{sup 3+} co-doped NaGdF{sub 4} up-conversion (UC) nano-particles were synthesized by thermal decomposition method. X-ray diffraction and FE-SEM image analysis were done to confirm the structure, morphology and determination of particle size. The UC emission spectra for as prepared as well as 100°C, 200°C, 300°C, 400°C, 800°C, 1000°C and 1200°C heated for 3h samples were recorded and there emission intensities were compared at a constant pump power of excitations 98.1 W/cm{sup 2}. The effect of emission intensity on decay time was also studied through focused and unfocused excitations. The synthesized material was successfully utilized in lateral finger mark detections on the glass substrate through powder dusting method.
- OSTI ID:
- 22606356
- Journal Information:
- AIP Conference Proceedings, Vol. 1731, Issue 1; Conference: DAE solid state physics symposium 2015, Uttar Pradesh (India), 21-25 Dec 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
Similar Records
White light emission and effect of annealing on the Ho{sup 3+}–Yb{sup 3+} codoped BaCa{sub 2}Al{sub 8}O{sub 15} phosphor
Role of Gd{sup 3+} ion on downshifting and upconversion emission properties of Pr{sup 3+}, Yb{sup 3+} co-doped YNbO{sub 4} phosphor and sensitization effect of Bi{sup 3+} ion
Related Subjects
COMPARATIVE EVALUATIONS
CONVERSION
DETECTION
DOPED MATERIALS
EMISSION
EMISSION SPECTRA
FINGERS
FLUORINE COMPOUNDS
GADOLINIUM COMPOUNDS
GLASS
HOLMIUM ADDITIONS
NANOPARTICLES
PARTICLE SIZE
POWDERS
PYROLYSIS
SCANNING ELECTRON MICROSCOPY
SODIUM COMPOUNDS
SUBSTRATES
X-RAY DIFFRACTION
YTTERBIUM ADDITIONS