Face-on reorientation of π-conjugated polymers in thin films by surface-segregated monolayers

2020 ◽  
Vol 8 (13) ◽  
pp. 6268-6275 ◽  
Author(s):  
Wei-Chih Wang ◽  
Sheng-Yuan Chen ◽  
Yaw-Wen Yang ◽  
Chain-Shu Hsu ◽  
Keisuke Tajima
Keyword(s):  
Thin Films ◽  
Conjugated Polymers ◽  
Conjugated Polymer ◽  
Side Chain

A new π-conjugated polymer based on naphthalenediimide with a branched semifluoroalkyl side chain (FNDIT2) was synthesized and used to change the polymer orientations in thin films.

Side-chain engineering of conjugated polymers toward highly efficient near-infrared organic photo-detectors via morphology and dark current management

2020 ◽  
Vol 8 (23) ◽  
pp. 7765-7771
Author(s):  
Yeongkwon Kang ◽  
Hyeong Ju Eun ◽  
Hyojin Kye ◽  
Dahee Kim ◽  
Junseok Heo ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Dark Current ◽  
Conjugated Polymer ◽  
Near Infrared ◽  
Side Chain ◽  
Current Management ◽  
Highly Efficient ◽  
Photo Detectors

A side-chain engineered conjugated polymer provides outstanding NIR detectivity exceeding 2.0 × 1012Jones, due to enhanced photo-responsivity and suppressed dark current.

scholarly journals Solvent-dependent self-assembly and ordering in slow-drying drop-cast conjugated polymer films

2015 ◽  
Vol 3 (38) ◽  
pp. 9842-9848 ◽  
Author(s):  
Kui Zhao ◽  
Xinhong Yu ◽  
Ruipeng Li ◽  
Aram Amassian ◽  
Yanchun Han
Keyword(s):  
Thin Films ◽  
Conjugated Polymers ◽  
Charge Transport ◽  
Polymer Films ◽  
Self Assembly ◽  
Conjugated Polymer ◽  
Optoelectronic Properties ◽  
Microstructure Development ◽  
Mechanistic Understanding ◽  
Semiconducting Thin Films

The mechanistic understanding of the intrinsic molecular self-assembly of conjugated polymers is of immense importance to control the microstructure development in organic semiconducting thin films, with a meaningful impact on charge transport and optoelectronic properties.

Oligo(ethylene glycol) side chain effect on the physical properties and molecular arrangement of oligothiophene–isoindigo based conjugated polymers

Soft Matter ◽  
2019 ◽  
Vol 15 (46) ◽  
pp. 9468-9473 ◽  
Author(s):  
Chien-An Chen ◽  
Shih-Chieh Wang ◽  
Shih-Huang Tung ◽  
Wei-Fang Su
Keyword(s):  
Ethylene Glycol ◽  
Physical Properties ◽  
Conjugated Polymers ◽  
Conjugated Polymer ◽  
Side Chain ◽  
Molecular Arrangement ◽  
Polymer Packing

Incorporation of an oligo(ethylene glycol) side chain into an oligothiophene–isoindigo based conjugated polymer can tune the polymer packing orientation.

Improvement of open-circuit voltage and photovoltaic properties of 2D-conjugated polymers by alkylthio substitution

2014 ◽  
Vol 7 (7) ◽  
pp. 2276-2284 ◽  
Author(s):  
Chaohua Cui ◽  
Wai-Yeung Wong ◽  
Yongfang Li
Keyword(s):  
Conjugated Polymers ◽  
Conjugated Polymer ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Side Chain ◽  
Photovoltaic Properties ◽  
Conjugated Copolymer

The photovoltaic properties of 2D-conjugated copolymer PBDTTTs were further improved by side chain engineering in a 2D-conjugated polymer.

scholarly journals Effect of Side Chain Substituent Volume on Thermoelectric Properties of IDT-Based Conjugated Polymers

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 963
Author(s):  
De-Xun Xie ◽  
Tong-Chao Liu ◽  
Jing Xiao ◽  
Jing-Kun Fang ◽  
Cheng-Jun Pan ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Thermoelectric Properties ◽  
Conjugated Polymer ◽  
High Performance ◽  
Charge Carriers ◽  
Side Chain ◽  
Side Chains ◽  
Bulky Substituent ◽  
P Type

A p-type thermoelectric conjugated polymer based on indacenodithiophene and benzothiadiazole is designed and synthesized by replacing normal aliphatic side chains (P1) with conjugated aromatic benzene substituents (P2). The introduced bulky substituent on P2 is detrimental to form the intensified packing of polymers, therefore, it hinders the efficient transporting of the charge carriers, eventually resulting in a lower conductivity compared to that of the polymers bearing aliphatic side chains (P1). These results reveal that the modification of side chains on conjugated polymers is crucial to rationally designed thermoelectric polymers with high performance.

Synthesis and optoelectronic properties of benzodithiophene-based conjugated polymers with hydrogen bonding nucleobase side chain functionality

2020 ◽  
Vol 11 (36) ◽  
pp. 5735-5749
Author(s):  
Sina Sabury ◽  
Tyler J. Adams ◽  
Margaret Kocherga ◽  
S. Michael Kilbey ◽  
Michael G. Walter
Keyword(s):  
Thin Films ◽  
Hydrogen Bonding ◽  
Conjugated Polymers ◽  
Electronic Properties ◽  
Molecular Assembly ◽  
Optoelectronic Properties ◽  
Side Chain ◽  
Alternating Copolymers ◽  
Optical And Electronic Properties

Nucleobase functionalities in conjugated, alternating copolymers participate in interbase hydrogen bonding, which promotes molecular assembly and organization in thin films and enhances optical and electronic properties.

Nanocomposites of metallophthalocyanines and conjugated Polymers

1997 ◽  
Vol 488 ◽  
Author(s):  
Shujian Yi ◽  
Samson A. Jenekhe
Keyword(s):  
Thin Films ◽  
Conjugated Polymers ◽  
Organic Solvents ◽  
Lewis Acid ◽  
Spin Coating ◽  
Conjugated Polymer ◽  
Optical Transparency ◽  
Composite Thin Films

AbstractNanocomposites of phenoxy-substituted vanadyl phthalocyanine with a t-conjugated polymer, poly(benzimidazobenzophenanthroline ladder), have been prepared from their Lewis acid complexes in organic solvents. The resulting composite thin films obtained by spin-coating have excellent optical transparency and interesting composition-dependent morphology and photoelectronic properties. Enhanced photoconductivity, compared to the components, was observed in some composites with discrete nanoscale metallophthalocyanine aggregates.

scholarly journals On the factors influencing the chiroptical response of conjugated polymer thin films

2021 ◽  
Author(s):  
Beth Laidlaw ◽  
Julien Eng ◽  
Jessica Wade ◽  
Xingyuan Shi ◽  
Francesco Salerno ◽  
...  
Keyword(s):  
Thin Films ◽  
Circular Dichroism ◽  
Conjugated Polymers ◽  
Conjugated Polymer ◽  
Polymer Thin Films ◽  
Detailed Understanding ◽  
Factors Influencing ◽  
Chiral Phases ◽  
Circular Dichroïsm

Chiral phases induced in conjugated polymers are a promising approach to producing thin films with strong circular dichroism (CD) and circularly polarised (CP) luminescence. However, a detailed understanding towards the...

Endgroup and Sidechain Functionalization of Surface-Initiated ROMP Thin Films: Progress Towards ROMP-Based Molecular Wires

2018 ◽  
Author(s):  
Nicholas Marshall
Keyword(s):  
Thin Films ◽  
Contact Angle ◽  
Cyclic Voltammetry ◽  
Polymer Films ◽  
Conjugated Polymer ◽  
Ring Opening ◽  
Molecular Wires ◽  
Metathesis Polymerization ◽  
Cross Metathesis ◽  
Active Ester

A set of experiments in surface-initiated ring-opening metathesis polymerization, including end-functionalization of growing brushes and contact angle/cyclic voltammetry measurements. We report preparation and CV of two different conjugated polymer films, and several endgroup and sidechain functionalization experiments using cross-metathesis and active ester substitution.<br>

Application of Thin Films of Conjugated Polymers in Novel LED's and Liquid Crystal 'Light Valves'

1997 ◽  
Author(s):  
A. G. MacDiarmid ◽  
H. L. Wang ◽  
F. Huang ◽  
J. K. Avlyanov ◽  
P. C. Wang
Keyword(s):  
Thin Films ◽  
Liquid Crystal ◽  
Conjugated Polymers
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