Structure Control of π-Conjugated Polymers for Enhanced Solid-State Luminescence:  Synthesis and Liquid Crystalline and Photophysical Properties of New Bulky Poly(p-phenylenevinylene)s and Oligo(phenylenevinylene)s Bearing Tricyclodecane Pendants

2007 ◽  
Vol 40 (7) ◽  
pp. 2380-2391 ◽  
Author(s):  
S. R. Amrutha ◽  
M. Jayakannan
Keyword(s):  
Solid State ◽  
Conjugated Polymers ◽  
Liquid Crystalline ◽  
Photophysical Properties ◽  
Structure Control ◽  
State Luminescence

Fluorescent Hexacatenar Liquid Crystals

1999 ◽  
Vol 560 ◽  
Author(s):  
Ben Hoag ◽  
Douglas L. Gin ◽  
Udo Theissl ◽  
Egbert Zojer ◽  
Guenther Leising
Keyword(s):  
Liquid Crystals ◽  
Solid State ◽  
Emission Spectroscopy ◽  
Liquid Crystalline ◽  
Photophysical Properties ◽  
Optoelectronic Properties ◽  
Blue Luminescence ◽  
Photoluminescence Excitation ◽  
Site Selective

ABSTRACTA novel family of phasmidic liquid crystals incorporating an oligo(ρ-phenylenevinylene) core was produced. These compounds exhibit blue luminescence in both solution and the solid state. The emission profiles are influenced by the degree of organization in the solid state. The snthesis and liquid-crystalline behavior of these compounds will be discussed. Their photophysical properties, as studied by c.w. photoluminescence excitation, emission spectroscopy, and site selective spectroscopy, as well as their optoelectronic properties will be presented.

scholarly journals Assemblies of conjugated polymers: Intermolecular and intramolecular effects on the photophysical properties of conjugated polymers

2002 ◽  
Vol 74 (11) ◽  
pp. 2031-2044 ◽  
Author(s):  
Jinsang Kim
Keyword(s):  
Solid State ◽  
Conjugated Polymers ◽  
Conjugated Polymer ◽  
Chemical Structure ◽  
Field Effect Transistors ◽  
Photophysical Properties ◽  
Polymer Chains ◽  
Critical Parameters ◽  
Light Emitting ◽  
Recent Developments

Conjugated polymers are emerging materials for electronic applications due to the tunability of their properties through variation of their chemical structure. Their applications, which currently include light-emitting diodes (LEDs), field effect transistors (FETs), plastic lasers, batteries, and sensors, are expanding to many new areas. The two critical parameters that determine the function of conjugated polymer-based devices are chemical structure and nanostructure of a conjugated polymer in the solid state. While the physical properties of isolated polymers are primarily controlled by their chemical structure, these properties are drastically altered in the solid state due to electronic coupling between polymer chains as determined by their interpolymer packing and conformation. However, the development of effective and precise methods for controlling the nanostructure of polymers in the solid state has been limited because polymers often fail to assemble into organized structures due to their amorphous character and large molecular weight.In this review, recent developments of organizing methods of conjugated polymers and the conformation and interpolymer interaction effects on the photophysical properties of conjugated polymers are summarized.

Synthesis, crystal structures and photophysical properties of novel boron-containing derivatives of phenalene with bright solid-state luminescence

2014 ◽  
Vol 106 ◽  
pp. 197-204 ◽  
Author(s):  
Weibo Yan ◽  
Chenming Hong ◽  
Guankui Long ◽  
Yang Yang ◽  
Zhiwei Liu ◽  
...  
Keyword(s):  
Solid State ◽  
Crystal Structures ◽  
Photophysical Properties ◽  
Derivatives Of ◽  
State Luminescence

Fluorescent Hexacatenar Liquid Crystals

1999 ◽  
Vol 558 ◽  
Author(s):  
Ben Hoag ◽  
Douglas L. Gin
Keyword(s):  
Liquid Crystals ◽  
Solid State ◽  
Emission Spectroscopy ◽  
Liquid Crystalline ◽  
Photophysical Properties ◽  
Optoelectronic Properties ◽  
Blue Luminescence ◽  
Photoluminescence Excitation ◽  
Site Selective

ABSTRACTA novel family of phasmidic liquid crystals incorporating an oligo(p-phenylenevinylene) core was produced. These compounds exhibit blue luminescence in both solution and the solid state. The emission profiles are influenced by the degree of organization in the solid state. The snthesis and liquid-crystalline behavior of these compounds will be discussed. Their photophysical properties, as studied by c.w. photoluminescence excitation, emission spectroscopy, and site selective spectroscopy, as well as their optoelectronic properties will be presented.

scholarly journals Three colour solid-state luminescence from positional isomers of facilely modified thiophosphoranyl anthracenes

2020 ◽  
Vol 56 (54) ◽  
pp. 7479-7482
Author(s):  
Timo Schillmöller ◽  
Paul Niklas Ruth ◽  
Regine Herbst-Irmer ◽  
Dietmar Stalke
Keyword(s):  
Solid State ◽  
Photophysical Properties ◽  
Positional Isomers ◽  
State Luminescence

Three positional isomers of thiophosphoranyl anthracene were synthesized and their divers photophysical properties were investigated.

Discrete polynuclear manganese(ii) complexes with thiacalixarene ligands: synthesis, structures and photophysical properties

2015 ◽  
Vol 44 (17) ◽  
pp. 7991-8000 ◽  
Author(s):  
Yan Suffren ◽  
Niall O'Toole ◽  
Andreas Hauser ◽  
Erwann Jeanneau ◽  
Arnaud Brioude ◽  
...  
Keyword(s):  
Solid State ◽  
Pressure Dependence ◽  
Photophysical Properties ◽  
State Luminescence

The solid state luminescence of [Mn4(ThiaSO2)2F]X (X = K+ and [K(18-crown-6)]+, ThiaSO2 = p-tert-butylsulphonylcalix[4]arene) compounds show a strong O2 pressure dependence.

Triple-bridged helical binuclear copper(i) complexes: Head-to-head and head-to-tail isomerism and the solid-state luminescence

2020 ◽  
Vol 49 (34) ◽  
pp. 11997-12008
Author(s):  
Aliia V. Shamsieva ◽  
Elvira I. Musina ◽  
Tatiana P. Gerasimova ◽  
Igor D. Strelnik ◽  
Anna G. Strelnik ◽  
...  
Keyword(s):  
Solid State ◽  
Photophysical Properties ◽  
Current Work ◽  
Binuclear Copper ◽  
State Luminescence

The current work presents novel dinuclear Cu(i) complexes bearing P,N-ligands. Their structures, isomerization, and photophysical properties are discussed in detail.

Structure-property relations of liquid crystalline polymers

1987 ◽  
Vol 45 ◽  
pp. 460-463
Author(s):  
Linda C. Sawyer
Keyword(s):  
Solid State ◽  
Liquid Crystalline ◽  
Structural Model ◽  
Crystalline Polymer ◽  
Liquid Crystalline Polymers ◽  
Mechanical Anisotropy ◽  
Structure Property ◽  
Preparation Methods ◽  
Crystalline Polymers ◽  
Extended Chain

Recent liquid crystalline polymer (LCP) research has sought to define structure-property relationships of these complex new materials. The two major types of LCPs, thermotropic and lyotropic LCPs, both exhibit effects of process history on the microstructure frozen into the solid state. The high mechanical anisotropy of the molecules favors formation of complex structures. Microscopy has been used to develop an understanding of these microstructures and to describe them in a fundamental structural model. Preparation methods used include microtomy, etching, fracture and sonication for study by optical and electron microscopy techniques, which have been described for polymers. The model accounts for the macrostructures and microstructures observed in highly oriented fibers and films.Rod-like liquid crystalline polymers produce oriented materials because they have extended chain structures in the solid state. These polymers have found application as high modulus fibers and films with unique properties due to the formation of ordered solutions (lyotropic) or melts (thermotropic) which transform easily into highly oriented, extended chain structures in the solid state.

Temperature-Dependent Solid-state Luminescence and Reversible Phase Transition of (n-Bu4N)[Au(SC6H3-3,5-Me2)2]

2003 ◽  
Vol 32 (11) ◽  
pp. 1002-1003 ◽  
Author(s):  
Seiji Watase ◽  
Takayuki Kitamura ◽  
Nobuko Kanehisa ◽  
Masami Nakamoto ◽  
Yasushi Kai ◽  
...  
Keyword(s):  
Phase Transition ◽  
Solid State ◽  
Temperature Dependent ◽  
Reversible Phase Transition ◽  
Reversible Phase ◽  
State Luminescence

scholarly journals New Approach in the Application of Conjugated Polymers: The Light-Activated Source of Versatile Singlet Oxygen Molecule

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1098
Author(s):  
Agata Blacha-Grzechnik
Keyword(s):  
Conjugated Polymers ◽  
Singlet Oxygen ◽  
Near Infrared ◽  
Photophysical Properties ◽  
Short Review ◽  
The Novel ◽  
New Approach ◽  
Intermolecular Energy ◽  
Intermolecular Energy Transfer ◽  
High Absorption

For many years, the research on conjugated polymers (CPs) has been mainly focused on their application in organic electronics. Recent works, however, show that due to the unique optical and photophysical properties of CPs, such as high absorption in UV–Vis or even near-infrared (NIR) region and efficient intra-/intermolecular energy transfer, which can be relatively easily optimized, CPs can be considered as an effective light-activated source of versatile and highly reactive singlet oxygen for medical or catalytic use. The aim of this short review is to present the novel possibilities that lie dormant in those exceptional polymers with the extended system of π-conjugated bonds.

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