Preparation of bright-emissive hybrid materials based on light-harvesting POSS having radially integrated luminophores and commercial π-conjugated polymers

2019 ◽  
Vol 3 (2) ◽  
pp. 314-320 ◽  
Author(s):  
Masayuki Gon ◽  
Keita Sato ◽  
Keigo Kato ◽  
Kazuo Tanaka ◽  
Yoshiki Chujo
Keyword(s):  
Conjugated Polymers ◽  
Hybrid Materials ◽  
Polymer Films ◽  
Conjugated Polymer ◽  
Light Harvesting ◽  
Photoluminescence Properties

Photoluminescence properties of π-conjugated polymer films are dramatically enhanced by hybridization with a light-harvesting POSS having radially-integreated luminophores.

Carbon Nanotube-Induced Planarization of Conjugated Polymers in Solution

2004 ◽  
Vol 858 ◽  
Author(s):  
Jian Chen ◽  
Rajagopal Ramasubramaniam ◽  
Haiying Liu
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Conjugated Polymers ◽  
Spectroscopic Study ◽  
Surface Quality ◽  
Hybrid Materials ◽  
Conjugated Polymer ◽  
Visible Absorption ◽  
The Impact ◽  
Conformational Interaction

ABSTRACTThe understanding of the conformational interaction between conjugated polymers and carbon nanotubes in solution is essential to develop the applications of carbon nanotubes, particularly conjugated polymer-carbon nanotube hybrid materials. The visible absorption spectroscopic study shows that curved carbon nanotube surfaces can induce the planarization of individual conjugated polymers such as poly(p-phenyleneethynylene)s and poly(3-alkylthiophene)s in solution. The impact of nanotube surface quality on the interaction between carbon nanotubes and conjugated polymers is investigated.

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.

scholarly journals Enhancing the electrochromic performance of conjugated polymers using thermal nanoimprint lithography

RSC Advances ◽  
2017 ◽  
Vol 7 (77) ◽  
pp. 49119-49124 ◽  
Author(s):  
Wei Teng Neo ◽  
Xue Li ◽  
Soo-Jin Chua ◽  
Karen Siew Ling Chong ◽  
Jianwei Xu
Keyword(s):  
Conjugated Polymers ◽  
Polymer Films ◽  
Conjugated Polymer ◽  
Nanoimprint Lithography ◽  
Reference Device

Thermal nanoimprinting is employed to create nanopatterned electrochromic conjugated polymer films, giving superior color-changing properties compared to a reference device.

scholarly journals Two-dimensional conjugated polymer films via liquid-interface-assisted synthesis toward organic electronic devices

2020 ◽  
Vol 8 (31) ◽  
pp. 10696-10718 ◽  
Author(s):  
Kejun Liu ◽  
Lihuan Wang ◽  
Renhao Dong
Keyword(s):  
Conjugated Polymers ◽  
Polymer Films ◽  
Conjugated Polymer ◽  
Electronic Devices ◽  
Two Dimensions ◽  
Liquid Interface ◽  
Two Dimensional ◽  
Organic Electronic Devices ◽  
Organic Electronic ◽  
Active Layers

Development of conjugated polymers in two dimensions via liquid-interface-assisted synthesis as active layers for use in electronic devices.

Conjugated Poly-P-Phenylene (PPP) From Poly(1,3-Cyclohexadiene) (PCHD) Homo- and Block Copolymers: Controlled Processability and Properties

1999 ◽  
Vol 561 ◽  
Author(s):  
J. Mays ◽  
K. Hong ◽  
Y. Wang ◽  
R.C. Advincula
Keyword(s):  
Block Copolymer ◽  
Conjugated Polymers ◽  
Anionic Polymerization ◽  
Conjugated Polymer ◽  
Device Fabrication ◽  
Copolymer Composition ◽  
Photoluminescence Properties ◽  
Living Anionic Polymerization ◽  
Dehydrogenation Reaction ◽  
The Right

ABSTRACTConjugated polymers have been used as solid-state materials for a variety of opto-electronic applications. Thus, their processability in a number of device fabrication protocols is an important consideration. In this report, we indicate our results on the synthesis of conjugated poly-p-phenylene (PPP) materials derived from poly(1,3-cyclohexadiene) (PCHD). The precursor PCHD polymers were synthesized by living anionic polymerization to produce homo-and block copolymer configurations with polystyrene. We have used a variety of initiators, solvent, and temperature conditions to determine the right parameters for obtaining narrow MWD polymers. The conditions for polymerization determined the ratio of 1,2 and 1,4 isomers in the microstructure. We then proceeded with conversion to PPP derivatives using a dehydrogenation reaction with chloranil. Our results indicate a systematic conversion to a conjugated polymer with increased solubility and photoluminescence properties. The microstructure, MW and block copolymer composition affecting the processability and conversion properties dramatically.

Scanning-tunneling spectroscopy on conjugated polymer films

2003 ◽  
Vol 771 ◽  
Author(s):  
M. Kemerink ◽  
S.F. Alvarado ◽  
P.M. Koenraad ◽  
R.A.J. Janssen ◽  
H.W.M. Salemink ◽  
...  
Keyword(s):  
Polymer Films ◽  
Conjugated Polymer ◽  
Three Dimensional ◽  
Field Enhancement ◽  
Direct Consequence ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Band Alignment ◽  
Scanning Tunneling ◽  
Order Of Magnitude

AbstractScanning-tunneling spectroscopy experiments have been performed on conjugated polymer films and have been compared to a three-dimensional numerical model for charge injection and transport. It is found that field enhancement near the tip apex leads to significant changes in the injected current, which can amount to more than an order of magnitude, and can even change the polarity of the dominant charge carrier. As a direct consequence, the single-particle band gap and band alignment of the organic material can be directly obtained from tip height-voltage (z-V) curves, provided that the tip has a sufficiently sharp apex.

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>

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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