Host sensitized near infrared to visible photon upconversion in 1% Re4+ doped Cs2NaYbBr6

Unravelling the benefits of transition-metal-co-doping in lanthanide upconversion nanoparticles

“…Given their crucial role in influencing the surrounding habitats of dopant ions, such as spatial distance, coordination numbers, and energy transfer efficiency, UCL efficiency is directly tied to the host matrix. A large number of suitable hosts doped with transition-metal ions (3d, 4d, 5d) were investigated by Gudel and co-workers to show upconversion luminescence, for example Ti + , 57 V 3+ , 58 Cr 3+ , 59 Mn 2+ , 60 Ni 2+ , 56,61 Mo 3+ , 62,63 Re 4+ , 64,65 or Os 4+ 66 doped or co-doped alongside Ln 3+ in various halide compounds.…”

Yb3+-sensitized visibleNi2+photon upconversion in codopedGarcı́a-Revilla1, Gerner2, Güdel3 et al. 2005Phys. Rev. B14060View full textAdd to dashboardCite

“…These systems take advantage of the invariance to the chemical environment of lanthanide ions combined with the chemical tunability of the energy levels in TM ions. First examples of visible UC in mixed TM-R systems have been reported for Mn 2+ -Yb 3+ , [14][15][16][17][18][19][20][21][22][23][24] Cr 3+ -Yb 3+ , [25][26][27] Re 4+ -Yb 3+ , 28 and V 3+ -Er 3+ . 29 All Yb 3+ containing systems involve excitation around 1 m resonant with the absorption peaks of Yb 3+ which sensitizes the visible UC emission from the TM ion.…”