TY - JOUR

T1 - Effect of Gd3+, La3+, Lu3+ co-doping on the morphology and luminescent properties of NaYF4:Sm3+ phosphors

AU - Скрипкин, Михаил Юрьевич

AU - Мерещенко, Андрей Сергеевич

AU - Богачев, Никита Александрович

AU - Колесников, Илья Евгеньевич

AU - Бетина, Анна Андреевна

AU - Орлов, Сергей Николаевич

AU - Булатова, Татьяна Сергеевна

AU - Носов, Виктор Геннадиевич

AU - Панов, Максим Сергеевич

AU - Рязанцев, Михаил Николаевич

PY - 2023/3/7

Y1 - 2023/3/7

N2 - The series of luminescent NaYF 4:Sm 3+ nano- and microcrystalline materials co-doped by La 3+, Gd 3+, and Lu 3+ ions were synthesized by hydrothermal method using rare earth chlorides as the precursors and citric acid as a stabilizing agent. The phase composition of synthesized compounds was studied by PXRD. All synthesized materials except ones with high La 3+ content (where LaF 3 is formed) have a β-NaYF 4 crystalline phase. SEM images demonstrate that all particles have shape of hexagonal prisms. The type and content of doping REE significantly effect on the particle size. Upon 400 nm excitation, phosphors exhibit distinct emission peaks in visible part of the spectrum attributed to 4G 5/2→ 6H J transitions (J = 5/2-11/2) of Sm 3+ ion. Increasing the samarium (III) content results in concentration quenching by dipole-dipole interactions, the optimum Sm 3+concentration is found to be of 2%. Co-doping by non-luminescent La 3+, Gd 3+ and Lu 3+ ions leads to an increase in emission intensity. This effect was explained from the Sm 3+ local symmetry point of view.

AB - The series of luminescent NaYF 4:Sm 3+ nano- and microcrystalline materials co-doped by La 3+, Gd 3+, and Lu 3+ ions were synthesized by hydrothermal method using rare earth chlorides as the precursors and citric acid as a stabilizing agent. The phase composition of synthesized compounds was studied by PXRD. All synthesized materials except ones with high La 3+ content (where LaF 3 is formed) have a β-NaYF 4 crystalline phase. SEM images demonstrate that all particles have shape of hexagonal prisms. The type and content of doping REE significantly effect on the particle size. Upon 400 nm excitation, phosphors exhibit distinct emission peaks in visible part of the spectrum attributed to 4G 5/2→ 6H J transitions (J = 5/2-11/2) of Sm 3+ ion. Increasing the samarium (III) content results in concentration quenching by dipole-dipole interactions, the optimum Sm 3+concentration is found to be of 2%. Co-doping by non-luminescent La 3+, Gd 3+ and Lu 3+ ions leads to an increase in emission intensity. This effect was explained from the Sm 3+ local symmetry point of view.

UR - https://www.mendeley.com/catalogue/a9f59d5b-acb8-329d-8be4-0be678b4850b/

U2 - 10.3390/ma16062157

DO - 10.3390/ma16062157

M3 - Article

C2 - 36984038

VL - 16

JO - Materials

JF - Materials

SN - 1996-1944

IS - 6

M1 - 2157

ER -