Photon upconversion: from two-photon absorption (TPA) to triplet–triplet annihilation (TTA)

2016 ◽  
Vol 18 (16) ◽  
pp. 10818-10835 ◽  
Author(s):  
Changqing Ye ◽  
Liwei Zhou ◽  
Xiaomei Wang ◽  
Zuoqin Liang
Keyword(s):  
Molecular Engineering ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Recent Advances ◽  
Triplet Triplet Annihilation

Recent advances and remaining challenges are presented in the areas of TPA/TTA-UC, with particular emphasis on molecular engineering of these two upconversion materials.

scholarly journals Highly efficient singlet oxygen generation, two-photon photodynamic therapy and melanoma ablation by rationally designed mitochondria-specific near-infrared AIEgens

2020 ◽  
Vol 11 (9) ◽  
pp. 2494-2503 ◽  
Author(s):  
Zheng Zheng ◽  
Haixiang Liu ◽  
Shaodong Zhai ◽  
Haoke Zhang ◽  
Guogang Shan ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Singlet Oxygen ◽  
Near Infrared ◽  
Molecular Engineering ◽  
Photon Absorption ◽  
Oxygen Generation ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Singlet Oxygen Generation ◽  
Highly Efficient

Mitochondria-targeted photosensitizers with highly efficient singlet oxygen generation, bright near-infrared AIE and good two-photon absorption are obtained through ingenious molecular engineering for cancer cell-selective photodynamic therapy.

Molecular engineering for two-photon absorption in the visible

2000 ◽  
Author(s):  
Remi Anemian ◽  
Chantal Andraud ◽  
Jean-Michel Nunzi ◽  
Yannick Morel ◽  
Patrice L. Baldeck
Keyword(s):  
Molecular Engineering ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon

Recent advances in meso-alkylidenyl carbaporphyrinoids

2016 ◽  
Vol 20 (01n04) ◽  
pp. 21-34 ◽  
Author(s):  
Kamaljit Singh ◽  
Abeje Abebayehu ◽  
Endale Mulugeta ◽  
Divya Sareen ◽  
Chang-Hee Lee
Keyword(s):  
Chemical Properties ◽  
Photon Absorption ◽  
Redox Catalysis ◽  
Vast Number ◽  
Structural Modifications ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Material Chemistry ◽  
Recent Advances ◽  
Physico Chemical

Porphyrins and their structural analogs have drawn continuous attention owing to their physico-chemical properties associated with biological, medical and material chemistry. Consequently, many structural modifications of the porphyrin skeleton have been reported as a fundamental tool for tuning the physico-chemical properties and a variety of new classes of porphyrinoids have emerged. A vast number of applications such as photodynamic therapy (PDT), redox catalysis, chemosensors, nonlinear optical material (NLO) and two photon absorption (TPA) have been studied utilizing these systems. The “so called” meso-alkylidenyl porphyrins have been reported recently as alternative modification methods of the porphyrin skeleton. These compounds possess one or more exocyclic double bonds at meso-positions and are usually non-aromatic systems. The reported spectroscopic as well as structural properties well-corroborate the non-aromatic nature of the macrocycles. However, the protonation behavior and tautomerism are quite different from those of normal porphyrins. Considering the unique properties of meso-alkylidenyl carbaporphyrinoid macrocycles, we present a review on the recent advances in this area of chemistry.

Molecular engineering of nanoscale quadrupolar chromophores for two-photon absorption

2003 ◽  
Author(s):  
Laurent Porres ◽  
Olivier Mongin ◽  
Mireille H. Blanchard-Desce ◽  
Lionel Ventelon ◽  
Marguerite Barzoukas ◽  
...  
Keyword(s):  
Molecular Engineering ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon

Spatially confined photoexcitation with triplet-triplet annihilation upconversion

2021 ◽  
Author(s):  
Zhijia Wang ◽  
Yuqi Hou ◽  
Zepeng Huo ◽  
Qiang Liu ◽  
Weiqing Xu ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Confocal Microscope ◽  
Photon Absorption ◽  
Spatial Confinement ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Triplet Triplet Annihilation

Two-photon absorption (TPA) has been widely used in confocal microscope, photo-initiated three-dimensional (3D) polymerization, and 3D-micro/nanofabrication. These applications are based on the spatial confinement of the TPA excitation, due to...

Theoretical molecular engineering for nonlinear absorption by two-photon absorption in the visible

2000 ◽  
Vol 2 (4) ◽  
pp. 284-288 ◽  
Author(s):  
Chantal Andraud ◽  
Rémi Anémian ◽  
André Collet ◽  
J-M Nunzi ◽  
Yannick Morel ◽  
...  
Keyword(s):  
Nonlinear Absorption ◽  
Molecular Engineering ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon

scholarly journals Correction: Photon upconversion: from two-photon absorption (TPA) to triplet–triplet annihilation (TTA)

2016 ◽  
Vol 18 (10) ◽  
pp. 7537-7537 ◽  
Author(s):  
Changqing Ye ◽  
Liwei Zhou ◽  
Xiaomei Wang ◽  
Zuoqin Liang
Keyword(s):  
Chem Phys ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Phys Chem Chem Phys ◽  
Triplet Triplet Annihilation

Correction for ‘Photon upconversion: from two-photon absorption (TPA) to triplet–triplet annihilation (TTA)’ by Changqing Ye et al., Phys. Chem. Chem. Phys., 2016, DOI: 10.1039/c5cp07296d.

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