Conjugated copolymer–photosensitizer molecular hybrids with broadband visible light absorption for efficient light-harvesting and enhanced singlet oxygen generation

2015 ◽  
Vol 3 (5) ◽  
pp. 973-976 ◽  
Author(s):  
Rongkun He ◽  
Ming Hu ◽  
Ting Xu ◽  
Chunxiang Li ◽  
Chuanliu Wu ◽  
...  
Keyword(s):  
Visible Light ◽  
Singlet Oxygen ◽  
Light Absorption ◽  
Light Harvesting ◽  
Visible Absorption ◽  
Visible Light Absorption ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Molecular Hybrids ◽  
Conjugated Copolymer

We have developed conjugated copolymer–photosensitizer molecular hybrids (PFBDBP–IPBP) with a strong, broad (from <400 nm to ∼700 nm) and continuous visible absorption.

scholarly journals Singlet oxygen generation properties of an inclusion complex of cyclic free-base porphyrin dimer and fullerene C60

RSC Advances ◽  
2017 ◽  
Vol 7 (30) ◽  
pp. 18690-18695 ◽  
Author(s):  
Yousuke Ooyama ◽  
Toshiaki Enoki ◽  
Joji Ohshita ◽  
Takuya Kamimura ◽  
Shuwa Ozako ◽  
...  
Keyword(s):  
Inclusion Complex ◽  
Visible Light ◽  
Singlet Oxygen ◽  
Visible Light Irradiation ◽  
Fullerene C60 ◽  
Light Irradiation ◽  
Free Base ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Porphyrin Dimer

We demonstrate that a cyclic free-base porphyrin dimer and its inclusion complex with fullerene C60 possess the ability to generate singlet oxygen (1O2) under visible light irradiation.

Extension of the Optical Absorption of TiO2 Nanopaticles to Visible Light Region by Doping with Cobalt

2011 ◽  
Vol 181-182 ◽  
pp. 348-351
Author(s):  
Yi Ding ◽  
Xiao Jun Xu ◽  
Zhang Hua Gan ◽  
Rui Xiong ◽  
Hai Lin Liu
Keyword(s):  
Optical Absorption ◽  
Visible Light ◽  
Light Absorption ◽  
Anatase Phase ◽  
Electron Transition ◽  
Binding Energies ◽  
Visible Absorption ◽  
Visible Light Absorption ◽  
X Ray ◽  
Light Region

TiO2 nanoparticles doped with different cobalt concentrations were fabricated by using so-gel method. The crystal structures and the morphology of the samples were characterized by using x-ray diffractmetry (XRD) and transmission electron microscopy (TEM), respectively. It was found that all the samples are anatase phase and the nanoparticles are of the size around 10 nm. Investigations of the binding energies of different element with X-ray photoelectron spectrometry (XPS) revealed that Co ions are in Co2+ state and take the substitutional sites. No Co clusters were detected in the samples. The optical absorption properties of the samples were studied by using UV-vis absorption spectroscopy. It was noticed that cobalt doped TiO2 has a significant visible light absorption in contrast to pure TiO2: besides a noticeable red shift in absorption edge, an extra visible light absorption peak appears at a wavelength around 600 nm. The visible absorption in cobalt doped TiO2 may attribute to the electron transition from impurity levels induced by the substitutional Co ions and the oxygen vacancies to the conduct band.

scholarly journals C60@lysozyme: a new photosensitizing agent for photodynamic therapy

2017 ◽  
Vol 5 (32) ◽  
pp. 6608-6615 ◽  
Author(s):  
A. Soldà ◽  
A. Cantelli ◽  
M. Di Giosia ◽  
M. Montalti ◽  
F. Zerbetto ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Visible Light ◽  
Singlet Oxygen ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Photosensitizing Agent

C60@lysozyme showed significant visible light-induced singlet oxygen generation in a physiological environment, indicating the potential of this hybrid as an agent for photodynamic therapy.

Enhanced photo-assisted ethanol electro-oxidation activity by using broadband visible light absorption of a graphitic C3N4/BiOI carrier

2019 ◽  
Vol 3 (2) ◽  
pp. 439-449 ◽  
Author(s):  
Jiayue Hu ◽  
Chunyang Zhai ◽  
Haifeng Gao ◽  
Lixi Zeng ◽  
Yukou Du ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Absorption ◽  
Light Harvesting ◽  
Light Irradiation ◽  
Oxidation Activity ◽  
Visible Light Absorption ◽  
Electro Oxidation

A 2D/2D g-C3N4/BiOI heterojunction was used as a broad light harvesting support for the enhancement (16.9 times) of ethanol electro-oxidation under visible light irradiation.

Structural, elastic, electronic, and optical properties of the tricycle-like phosphorene

2017 ◽  
Vol 19 (3) ◽  
pp. 2245-2251 ◽  
Author(s):  
Yang Zhang ◽  
Zhi-Feng Wu ◽  
Peng-Fei Gao ◽  
Dang-Qi Fang ◽  
Er-Hu Zhang ◽  
...  
Keyword(s):  
Optical Properties ◽  
Visible Light ◽  
Structural Stability ◽  
Light Absorption ◽  
Light Harvesting ◽  
Band Gaps ◽  
Great Promise ◽  
Absorption Properties ◽  
Visible Light Absorption ◽  
Nanoelectronic Devices

Tricycle-like phosphorenes with good structural stability, indirect band gaps, flexible properties, and good visible light absorption properties hold great promise for applications in the field of visible light harvesting and flexible nanoelectronic devices.

Visible Light Promotes Decyanation Esterification Reaction of β-Ketonitriles with Dioxygen and Alcohols to α-Ketoesters

Synlett ◽  
2018 ◽  
Vol 29 (08) ◽  
pp. 1065-1070 ◽  
Author(s):  
Cheng Guo ◽  
Chen Xu ◽  
Nan-Nan Zhang ◽  
Xiao-ji Li ◽  
Yan-qin Ge ◽  
...  
Keyword(s):  
Visible Light ◽  
Singlet Oxygen ◽  
Bond Cleavage ◽  
Esterification Reaction ◽  
Bond Functionalization ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Catalyst Free ◽  
Plausible Mechanism

A green and mild method has been developed for the conversion of β-ketonitriles into α-ketoesters under catalyst-free conditions. A plausible mechanism is that visible light promotes singlet oxygen generation to form the products through oxidative C–H bond functionalization and C–C σ-bond cleavage.

trans-Bis(alkylphosphine) platinum(ii)-alkynyl complexes showing broadband visible light absorption and long-lived triplet excited states

2014 ◽  
Vol 2 (45) ◽  
pp. 9720-9736 ◽  
Author(s):  
Huiru Jia ◽  
Betül Küçüköz ◽  
Yongheng Xing ◽  
Poulomi Majumdar ◽  
Caishun Zhang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Visible Light ◽  
Excited States ◽  
Light Absorption ◽  
Light Harvesting ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Visible Light Absorption ◽  
Triplet Excited States

Broadband visible light-harvesting bis(alkylphosphine) platinum(ii)-alkynyl complexes based on resonance energy transfer were prepared and used for TTA upconversion.

Heterogeneous singlet oxygen generation: in-operando visible light EPR spectroscopy

2019 ◽  
Author(s):  
Carlos Mendoza ◽  
Anthony Désert ◽  
Lhoussain Khrouz ◽  
Carlos A. Páez ◽  
Stéphane Parola ◽  
...  
Keyword(s):  
Visible Light ◽  
Singlet Oxygen ◽  
Epr Spectroscopy ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
In Operando
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