Results 181 to 190 of about 19,577 (268)

Dependence of upconversion on direct luminescence decay in energy-transfer upconversion

, 2003
For several decades, energy-transfer upconversion (ETU) in rare-earth-ion doped systems [1,2] has attracted much attention, firstly, because of the fundamental interest in the physical nature of this process and, secondly, because of very practical considerations, namely the demonstration of near-infrared pumped visible light sources and, in reverse ...
Laversenne, L., Pollnau, Markus, Bigotta, S., Toncelli, A., Tonelli, M.   +4 more
openaire   +1 more source

Continuous-wave, cooperative upconversion lasers.

, 1992
Continuous-wave lasers in which the emitted photon energy may be up to three times greater than that of the incident pump light by virtue of cooperative (coupled atom) upconversion processes are reported for the first time in this thesis. Cw upconversion
Xie, Ping
core  

Efficient near-infrared-excitable quantum dot-based triplet-triplet annihilation upconversion with a record anti-Stokes shift <i>via</i> low coverage of mono-styryl-BODIPY ligands. [PDF]

Chem Sci
Li R, Jiang LH, Xi L, Zhang MY, Feng HJ, Guo DX, Hou L, Huang L, Pang DW.   +8 more
europepmc   +1 more source

Near-infrared Light Responsive Upconversion Nanoparticles for Imaging, Drug Delivery and Therapy of Cancers

, 2016
Cancers have become serious threat to human health and life, and they are critical to develop safe and effective theranostic methods for diagnosis and therapy of tumors.
Zeng, Leyong, Wu, Aiguo, Yu, Zhangsen
core  

Dual-Mode Electrical-Optical Nanocomposite Hydrogel with Enhanced Upconversion Luminescence for Strain and pH Sensing. [PDF]

Gels
He C, Xu X.
europepmc   +1 more source

Mid-infrared to ultraviolet efficient multiphoton frequency upconversion in NbOI₂ crystals. [PDF]

Nat Commun
Zhu S, Mao X, Yan C, Wang F, Xu Z, Hu H, Xu X, Fang Y, Sun F, Duan R, Wu Y, Yang Y, Wang C, Qiao Z, Chen W, Liang H, Huang F, Liu Z, Luo Y, Wang QJ.   +19 more
europepmc   +1 more source

Flexible dimethylsilylene bridges in silicon quantum dot-anthracene adducts promote triplet energy transfer. [PDF]

Chem Sci
Lewis SG, Wang K, Nguyen NQ, Gonzalez A, Wang H, Siu TC, Mangolini L, Roberts ST, Su TA, Eaves JD, Tang ML.   +10 more
europepmc   +1 more source

Recent advances in enhancing the luminescence efficiency of rare earth upconversion nanoparticles for biomedical applications. [PDF]

RSC Adv
Guo C, Ding Y, Cheng X, Zhou T, Xu Z, Zhang A, Shi F.   +6 more
europepmc   +1 more source

Enhancing upconversion [PDF]

Nature Materials, 2014
openaire   +1 more source

Iridium(III) Complexes Bearing Pyrene- and Anthracene-Functionalized Ligands-Photophysics and Application Potential in Photocatalysis, Triplet-Triplet Annihilation Upconversion, Photodynamic Therapy, and Photoactivated Chemotherapy. [PDF]

Molecules
Kryczka A, Choroba K, Palion-Gazda J, Machura B.   +3 more
europepmc   +1 more source