Conjugated Polymers: Solid‐State Low‐Temperature Thermoresponsive and Reversible Color Changes of Conjugated Polymer in Layered Structure: Beyond Infrared Thermography (Small 41/2020)

Small ◽  
2020 ◽  
Vol 16 (41) ◽  
pp. 2070227
Author(s):  
Kei Watanabe ◽  
Hiroaki Imai ◽  
Yuya Oaki
Keyword(s):  
Solid State ◽  
Low Temperature ◽  
Conjugated Polymers ◽  
Infrared Thermography ◽  
Layered Structure ◽  
Conjugated Polymer ◽  
Color Changes

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.

scholarly journals Suppressing aggregation induced quenching in anthracene based conjugated polymers

2021 ◽  
Author(s):  
Daniel G. Congrave ◽  
Bluebell H. Drummond ◽  
Victor Gray ◽  
Andrew D. Bond ◽  
Akshay Rao ◽  
...  
Keyword(s):  
Thin Film ◽  
Solid State ◽  
Conjugated Polymers ◽  
Conjugated Polymer ◽  
Transition Wavelength

We demonstrate an anthracene based conjugated polymer with a solid state PLQY that is effectively unchanged compared to solution measurements, alongside an identical PL 0–0 transition wavelength in solution and thin film.

scholarly journals Low-temperature Exotherm Measurement Using Infrared Thermography

HortScience ◽  
1995 ◽  
Vol 30 (1) ◽  
pp. 140-142 ◽  
Author(s):  
Toni L. Ceccardi ◽  
Robert L. Heath ◽  
Irwin P. Ting
Keyword(s):  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Low Temperature ◽  
Infrared Thermography ◽  
Computer Analysis ◽  
Freezing Temperature ◽  
Simmondsia Chinensis ◽  
Analysis Software ◽  
Color Changes

Infrared thermography was used successfully to measure the exotherm temperatures during freezing of well-watered and drought-stressed branches of jojoba [Simmondsia chinensis (Link) Schneider]. The exotherms were visualized easily as color changes on the monitor, while computer analysis software was used to plot the resulting temperature vs. time curves, suggesting that freezing sensitivity of jojoba is governed by supercooling. Each branch froze as a unit, and distinct initiation sites were absent. A second, previously tested method of differential thermal analysis was used simultaneously and confirmed the accuracy of the infrared technique. The actual freezing temperature for well-watered tissue was higher (–8C) than for tissue subjected to drought (–10C).

scholarly journals Compatibility assessment of solid ceramic electrolytes and active materials based on thermal dilatation for the development of solid-state batteries

2021 ◽  
Author(s):  
Marc Bertrand ◽  
Steeve Rousselot ◽  
David Ayme-Perrot ◽  
Mickael Dolle
Keyword(s):  
Solid State ◽  
Layered Structure ◽  
Active Materials ◽  
Inorganic Oxide ◽  
All Ceramic ◽  
Solid State Battery ◽  
Solid State Batteries ◽  
Ceramic Electrolytes ◽  
Thermal Dilatation

Assembling an all ceramic solid-state battery (ACSSB) using inorganic oxide electrolytes is challenging. The battery must have a continuous layered structure with a thin dense electrolyte separator and interfaces between...

Strategies and concepts in n-doped conjugated polymer thermoelectrics

2021 ◽  
Vol 9 (9) ◽  
pp. 5149-5163
Author(s):  
Teck Lip Dexter Tam ◽  
Jianwei Xu
Keyword(s):  
Conjugated Polymers ◽  
Conjugated Polymer ◽  
Chemical Structure ◽  
Structure Engineering

In this review, we discuss strategies & concepts in chemical structure engineering for n-type conjugated polymers & n-dopants that have brought about huge improvements in the performance of n-doped conjugated polymer thermoelectrics in recent years.

scholarly journals Synthesis and characterization of an electron-deficient conjugated polymer based on pyridine-flanked diketopyrrolopyrrole

RSC Advances ◽  
2021 ◽  
Vol 11 (21) ◽  
pp. 12995-13003
Author(s):  
Jialin Yang ◽  
Li Yang ◽  
Qianqian Chen ◽  
Keke Guo ◽  
Ji-Min Han
Keyword(s):  
Conjugated Polymers ◽  
Electrochemical Properties ◽  
Conjugated Polymer ◽  
Synthesis And Characterization

We report a pyridine-flanked diketopyrrolopyrrole monomer and all-acceptor conjugated polymers synthesized therefrom. Photophysical, thermal and electrochemical properties of the polymers have been determined.

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