Aggregation-controlled excimer emission in an axial anthracene–Sn(iv)porphyrin–anthracene triad in the solid and solution phases

2015 ◽  
Vol 39 (5) ◽  
pp. 4100-4108 ◽  
Author(s):  
Soumyajit Dey ◽  
Pritam Mondal ◽  
Sankar Prasad Rath
Keyword(s):  
Photophysical Properties ◽  
Excimer Emission ◽  
Donor Acceptor

An anthracene–porphyrin donor–acceptor triad has been synthesized and its photophysical properties along with excimer behavior are investigated.

Synthesis, photophysical properties, and computational studies of benzothiadiazole and/or phenothiazine based donor/acceptor π-conjugated copolymers

2021 ◽  
Vol 28 (7) ◽  
Author(s):  
Ashraf A. El-Shehawy ◽  
Morad M. El-Hendawy ◽  
Adel M. Attia ◽  
Abdul-Rahman I. A. Abdallah ◽  
Nabiha I. Abdo
Keyword(s):  
Photophysical Properties ◽  
Computational Studies ◽  
Donor Acceptor ◽  
Conjugated Copolymers

scholarly journals Effect of molecular weight on the properties and organic solar cell device performance of a donor–acceptor conjugated polymer

2015 ◽  
Vol 6 (12) ◽  
pp. 2312-2318 ◽  
Author(s):  
Zeyun Xiao ◽  
Kuan Sun ◽  
Jegadesan Subbiah ◽  
Tianshi Qin ◽  
Shirong Lu ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Solar Cell ◽  
Conjugated Polymer ◽  
Organic Solar Cell ◽  
Photophysical Properties ◽  
Device Performance ◽  
Solar Cell Device ◽  
Donor Acceptor

The effect of molecular weight of a conjugated polymer on its photophysical properties and solar cell device performance was investigated.

scholarly journals Subphthalocyanine–tetracyanobuta-1,3-diene–aniline conjugates: stereoisomerism and photophysical properties

2019 ◽  
Vol 10 (48) ◽  
pp. 10997-11005 ◽  
Author(s):  
Kim A. Winterfeld ◽  
Giulia Lavarda ◽  
Julia Guilleme ◽  
Dirk M. Guldi ◽  
Tomás Torres ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Electron Donor ◽  
Photophysical Properties ◽  
Donor Acceptor

We report the stereoisomerism and physicochemical properties of two novel electron donor–acceptor conjugates based on subphthalocyanines decorated at their peripheral, or peripheral/axial positions with multiple tetracyanobutadiene–aniline moieties.

scholarly journals Fluorene-Based Donor-Acceptor Copolymers Containing Functionalized Benzotriazole Units: Tunable Emission and their Electrical Properties

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 256 ◽  
Author(s):  
Iván Torres-Moya ◽  
Rebeca Vázquez-Guilló ◽  
Sara Fernández-Palacios ◽  
José Ramón Carrillo ◽  
Ángel Díaz-Ortiz ◽  
...  
Keyword(s):  
Density Functional ◽  
Field Effect Transistors ◽  
Photophysical Properties ◽  
Suzuki Reaction ◽  
Organic Field Effect Transistors ◽  
Functional Theory ◽  
Organic Optoelectronics ◽  
Donor Acceptor ◽  
Chain Lengths ◽  
Tunable Emission

Monomers 4,7-dibromo-2H-benzo[d]1,2,3-triazole (m1) and 4,7-(bis(4-bromophenyl)ethynyl)-2H-benzo[d]1,2,3-triazole (m2) have been synthesized in good yields using different procedures. Monomers m1 and m2 have been employed for building new copolymers of fluorene derivatives by a Suzuki reaction under microwave irradiation using the same conditions. In each case different chain lengths have been achieved, while m1 gives rise to polymers for m2 oligomers have been obtained (with a number of monomer units lower than 7). Special interest has been paid to their photophysical properties due to excited state properties of these D-A units alternates, which have been investigated by density functional theory (DFT) calculations using two methods: (i) An oligomer approach and (ii) by periodic boundary conditions (PBC). It is highly remarkable the tunability of the photophysical properties as a function of the different monomer functionalization derived from 2H-benzo[d]1,2,3-triazole units. In fact, a strong modulation of the absorption and emission properties have been found by functionalizing the nitrogen N-2 of the benzotriazole units or by elongation of the π-conjugated core with the introduction of alkynylphenyl groups. Furthermore, the charge transport properties of these newly synthesized macromolecules have been approached by their implementation in organic field-effect transistors (OFETs) in order to assess their potential as active materials in organic optoelectronics.

Tunable photophysical properties of thiophene based chromophores: a conjoined experimental and theoretical investigation

2019 ◽  
Vol 43 (17) ◽  
pp. 6728-6736 ◽  
Author(s):  
Anna Popczyk ◽  
Yohan Cheret ◽  
Anna Grabarz ◽  
Piotr Hanczyc ◽  
Piotr Fita ◽  
...  
Keyword(s):  
Theoretical Investigation ◽  
Photophysical Properties ◽  
Donor Acceptor

Synthesis and theoretical investigation of six donor–acceptor thiophene based derivatives with tunable photophysical properties.

Upconverting nanoparticle to quantum dot FRET for homogeneous double-nano biosensors

RSC Advances ◽  
2015 ◽  
Vol 5 (18) ◽  
pp. 13270-13277 ◽  
Author(s):  
Leena Mattsson ◽  
K. David Wegner ◽  
Niko Hildebrandt ◽  
Tero Soukka
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Near Infrared ◽  
Photophysical Properties ◽  
Semiconductor Quantum Dots ◽  
Optical Biosensing ◽  
Donor Acceptor

The unique photophysical properties of upconverting nanoparticles (UCNPs) and semiconductor quantum dots (QDs) render them an attractive donor–acceptor combination for near-infrared (NIR) excited FRET-based optical biosensing.

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