Modification of YNbO4 and YNbTiO6 photoluminescence by nitrogen doping
Source abstract
Abstract
Niobates as multifunctional materials were of vital importance in the industry production and daily life. In present work, niobates YNbO4 and YNbTiO6 are investigated as luminescence materials. The compounds have self-activated luminescence, and it is discussed how nitrogen doping affects their electronic structure and optical properties. Various analytical techniques, including x-ray diffraction, nitrogen-content analysis, x-ray photoelectron spectroscopy, scanning electron microscopy, UV-vis absorption spectroscopy and vacuum ultraviolet emission spectroscopy at variable temperature, were used to characterize the structure, composition, crystallinity and optical performance of these niobates. By considering the luminescence mechanisms in YNbO4 and YNbTiO6, the enhanced luminescence obtained upon nitrogen doping is attributed to the presence of oxygen vacancies and nitrogen levels, which changes the band gaps of the materials. Present work demonstrates the use of nitrogen doping for improving the photoluminescence properties of self-activated niobates.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Microwave Dielectric Ceramics Synthesis · Perovskite Materials and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Materials Science and Engineering, Central South University , Changsha, Hunan 410083, P. R. China
Funding
Hunan Province & Technology Department · The Project of Innovation-Driven Plan in Central South University · National Natural Science Foundation of China
References (50)
Show source-provided references
1. 2008
2. Recent developments in the field of inorganic phosphors [J]10.1002/anie.200804005 ↗
3. Layered crystal structure, color-tunable photoluminescence, and excellent thermal stability of MgIn2P4O14 phosphate-based phosphors [J]10.1021/acs.inorgchem.7b01670 ↗
4. High-pressure and magneto-optical studies of Cr-related defects in the lithium-rich LiNbO3:Cr, Mg Crystal [J]10.1103/physrevb.76.144117 ↗
5. Synthesis of perovskite-related layered AnBnO3n+2 = ABOX type niobates and titanates and study of their structural, electric and magnetic properties [J]10.1016/s0079-6786(01)00002-4 ↗
6. Structure, magnetic, and electric properties of bismuth niobates doped with d elements: I. Magnetic behavior of chromium-containing solid solutions of low-and high-temperature bismuth orthoniobate [J]10.1134/s1070363206110041 ↗
7. Crystallographic, ferroelectric and optical properties of TiO2-doped LiNbO3 crystals [J]10.1080/00150198908007921 ↗
8. A new family of ferroelectric materials: Me2Nb4O11 (Me = Na and Ag) [J]10.1039/b921115b ↗
9. Crystal structures and dielectric properties of ordered double perovskites containing Mg2+ and Ta5+ [J]10.1016/j.jssc.2007.08.003 ↗
10. Dielectric and piezoelectric properties of Cu2+-doped alkali niobates [J]10.1016/j.jeurceramsoc.2009.01.003 ↗
11. Review: Environmental friendly lead-free piezoelectric materials [J]10.1007/s10853-009-3643-0 ↗
12. Shortest chemical bond length as a criterion for searching new noncentrosymmetric niobate and tantalate crystals with high optical nonlinearity [J]10.1016/j.jcrysgro.2004.11.282 ↗
13. Characterization of photoelectrochemical active intercalation compound of K4Nb6O17 with methylviologen [J]10.1016/j.micromeso.2008.07.013 ↗
14. Shortest chemical bond length as a criterion for searching new noncentrosymmetric niobate and tantalate crystals with high optical nonlinearity [J]10.1016/j.jcrysgro.2004.11.282 ↗
15. Electronic structures and luminescence properties of YNbO4 and YNbO4:Bi [J]10.1006/jssc.2000.8941 ↗
16. Mechanistic investigation on up and down conversion of Er3+ and Gd3+ Co-doped YTiNbO6 phosphors [J]10.1039/c5ra11603a ↗
17. Luminescence and energy transfer process in YNbO4:Bi3+, Sm3+ phosphors [J]10.1166/sam.2017.2301 ↗
18. Preparation and photoluminescence properties of euxenite-type YNbTiO6 and YNbTiO6:xRE3+, yMn2+ (RE=Er, Dy) micro/nanophosphors [J]10.1016/j.materresbull.2013.05.070 ↗
19. Direct formation and luminescence properties of yttrium niobate YNbO4 nanocrystals via hydrothermal method [J]10.1111/jace.12595 ↗
20. Synthesis and optical properties of novel red phosphors YNbTiO6:Eu3+ with highly enhanced brightness by Li+ doping [J]10.1016/j.solidstatesciences.2009.02.018 ↗
21. Tuning of photoluminescence by cation nanosegregation in the (CaMg)x(NaSc)1–xSi2O6 solid solution [J]10.1021/jacs.5b12788 ↗
22. Recent development in phosphors with different emitting colors via energy transfer [J]10.1039/c6tc00436a ↗
23. Enhanced photoluminescence of Ca2Al2SiO7:Eu3+ by charge compensation method [J]10.1007/s00339-007-4090-x ↗
24. Structure evolution and photoluminescence of Lu3(Al, Mg)2 (Al, Si)3O12:Ce3+ phosphors: New yellow-color converters for blue LED-driven solid state lighting [J]10.1039/c6tc00966b ↗
25. Luminescence study of oxygen vacancies in lanthanum hafnium oxide, La2Hf2O7 [J]10.1016/j.jlumin.2012.10.034 ↗
26. Engineering oxygen vacancies towards self-activated BaLuAlxZn4-xO7-(1-x)/2 photoluminescent materials: An experimental and theoretical analysis [J]10.1039/c5cp05130d ↗
27. Luminescence and energy transfer in the columbite structure [J]10.1016/0025-5408(85)90202-8 ↗
28. A peculiar layered 12-fold cationic coordination compound LiInTi2O6: Phase relations, crystal structure and color-tunable photoluminescence [J]10.1039/c7ra01891f ↗
29. Simultaneous enhancements in photon absorption and charge transport of bismuth vanadate photoanodes for solar water splitting [J]10.1038/ncomms9769 ↗
30. Synthesis and enhancement of visible light activities of nitrogen-doped BaTiO3 [J]10.1016/j.jallcom.2014.07.008 ↗
31. Enhanced scintillation of Ba3In(B3O6)3 based on nitrogen doping [J]10.1016/j.jssc.2017.10.038 ↗
32. Study on the Hall-effect and photoluminescence of N-doped P-type ZnO thin films [J]10.1016/j.matlet.2006.04.001 ↗
33. Structural and luminescent characteristics of two-step processed BaAl2−xSixO4−xNx:Eu2+ phosphors [J]10.1016/j.jlumin.2012.08.015 ↗
34. The structure of YNbO4 crystals at room temperature [J]
35. Kristallstruk- turverfeinerungen von euxenit, Y(Nb0,5Ti0,5)2O6, und M-fergusonit, YNbG4 [J]10.1524/zkri.1980.152.1-2.69 ↗
36. Morphology of Gd3+-doped Y2SiO5:Ce [J]10.1016/j.jlumin.2006.01.113 ↗
37. Synthesis and spectroscopic properties of monoclinic α-Eu2(MoO4)3 [J]10.1021/jp5040739 ↗
38. Bi2WO6 with significantly enhanced photocatalytic activities by nitrogen doping [J]10.1016/j.matchemphys.2009.10.039 ↗
39. Characterization and photocatalytic properties of N-doped BiVO4 synthesized via a sol–gel method [J]10.1016/j.jallcom.2012.08.140 ↗
40. Selective self-propagating combustion synthesis of hexagonal and orthorhombic nanocrystalline yttrium iron oxide [J]10.1016/j.jssc.2004.06.020 ↗
41. SEM/EDX and XPS studies of niobium after electropolishing [J]10.1016/j.apsusc.2012.09.060 ↗
42. Electronic structure of layered titanate Nd2Ti2O7 [J]10.1016/j.susc.2008.07.040 ↗
43. Structural, spectroscopic, and electronic properties of cubic G0-Rb2KTiOF5 oxyfluoride [J]10.1021/jp401391y ↗
44. Probing defects in nitrogen-doped Cu2O [J]10.1038/srep07240 ↗
45. Preparation of N-doped CaNb2O6 nanoplates with ellipsoid-like morphology and their photocatalytic activities under visible-light irradiation [J]10.1166/jnn.2010.1856 ↗
46. Optical properties and electronic structure of amorphous Ge and Si [J]10.1016/0025-5408(68)90023-8 ↗
47. Luminescence and energy transfer in yttrium niobate (YNbO4) [J]10.1002/pssa.2210640232 ↗
48. Crystal structure, luminescence properties and energy transfer of Eu3+/Dy3+ doped GdNbTiO6 broad band excited phosphors [J]10.1039/c6ra08284j ↗
49. Origin of the blue luminescence of β-Ga2O3 [J]10.1016/s0022-3697(98)00047-x ↗
50. 2004 · 766