Near-mid infrared emission in Ce3+ and Tm3+ co-doped oxyfluoride glasses by excited at different wavelengths light

Near Infrared Quantum Cutting Luminescence of Er3+/Tm3+ Ion Pairs in a Telluride Glass

“…that the actual photoelectric conversion efficiency of silicon based solar cells can be enhanced by the quantum cutting effect. Meijerink 19 , 27 , Qiu and Zhou 12 , 15 , Zhang 7 , 27 , Huang 24 , and our group 8 , 28 have reported experimental research on first-order, multiphoton, near-infrared quantum cutting in Er 3+ or Tm 3+ activator-ion doped materials. This improvement has led to the development of first-order, multiphoton quantum cutting germanium (Ge) and silicon–germanium (Si–Ge) solar cells 1 , 7 , 8 , 12 , 15 , 27 , 28 , which are sensitive to wavelengths of 280–1850 nm and are environmentally friendly.…”

“…With the gradual depletion of fossil fuel energy sources and the increasing pollution of the environment, the development of new energy sources has become of utmost importance 1–12 . The most promising new energy source is solar energy.…”

“…Meijerink and Vergeer first demonstrated an experiment on the near-infrared, two-photon quantum cutting phenomenon in Yb x Y 1−x PO 4 :Tb 3+ phosphors in 2005 1 , which was conducted after they reported a well-known visible quantum cutting experiment for an Eu 3+ /Gd 3+ system in Science 2 . Since 2007, several groups, including Meijerink 1, 3, 19, 21, 27 , Qiu and Zhou 5, 12, 15 , Wang and Chen 6, 11, 13 , Huang 24 , Zou and Wang 25 , Fedorov and Luginina 9 , Zhang 7, 27 , Xia and Hu 29 , Guo and Chen 23 , and Song and Tao 30, 32 , and more 17, 20, 22 , have published more than 200 articles on the second-order, near-infrared, quantum cutting luminescence phenomena of sensitizer-Yb 3+ co-doped materials 1–25 , which were used to develop two-photon quantum cutting silicon solar cells. Near-infrared quantum cutting has become a hot topic in the field of science and nature.…”

“…Through quantum cutting, a high-energy photon can be converted into many low-energy photons. It is a new method to reduce the losses in solar cells by modifying the distribution of the incident solar light energy, which can be used to generate solar energy more effectively 5 , 12 – 33 . It is possible to apply the quantum cutting method to all types of solar cells without changing their structures.…”

“…On the other hand, near-infrared quantum cutting can be used in 1.8–2.0 μm near-to-mid infrared lasers. These types of lasers have potential applications in micro-surgery, tissue welding, range finding, remote sensing, environmental trace-gas detection, and biophysical applications 12 , 31 .…”