Remarkable effect of π-skeleton conformation in finitely conjugated polymer semiconductors

2020 ◽  
Vol 8 (26) ◽  
pp. 9055-9063
Author(s):  
Zhihui Chen ◽  
Weifeng Zhang ◽  
Yankai Zhou ◽  
Xuyang Wei ◽  
Chenyu Li ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Conjugated Polymer ◽  
Remarkable Effect ◽  
Polymer Semiconductors

The remarkable effect of π-skeleton conformation in finitely conjugated polymers based on tetrafluoroethylene units was studied.

New building blocks for π-conjugated polymer semiconductors for organic thin film transistors and photovoltaics

2014 ◽  
Vol 2 (41) ◽  
pp. 8651-8661 ◽  
Author(s):  
Yinghui He ◽  
Wei Hong ◽  
Yuning Li
Keyword(s):  
Thin Film ◽  
Conjugated Polymers ◽  
Conjugated Polymer ◽  
Thin Film Transistors ◽  
Building Blocks ◽  
Organic Thin Film Transistors ◽  
Organic Thin Film ◽  
Polymer Semiconductors ◽  
Donor And Acceptor ◽  
Electron Donor And Acceptor

This article reviews novel electron donor and acceptor building blocks for constructing π-conjugated polymers for organic thin film transistors and organic photovoltaics.

scholarly journals Suppressing photooxidation of conjugated polymers and their blends with fullerenes through nickel chelates

2017 ◽  
Vol 10 (9) ◽  
pp. 2005-2016 ◽  
Author(s):  
Michael Salvador ◽  
Nicola Gasparini ◽  
José Darío Perea ◽  
Sri Harish Paleti ◽  
Andreas Distler ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Conjugated Polymer ◽  
Polymer Semiconductors ◽  
Nickel Chelates

This work introduces nickel(ii) dibutyldithiocarbamate as a broadband and universal antioxidant for conjugated polymer semiconductors.

Pyrazino[2,3-g]quinoxaline-2,7-dione based π-conjugated polymers with affinity towards acids and semiconductor performance in organic thin film transistors

RSC Advances ◽  
2016 ◽  
Vol 6 (26) ◽  
pp. 22043-22051 ◽  
Author(s):  
Jesse Quinn ◽  
Chang Guo ◽  
Lewis Ko ◽  
Bin Sun ◽  
Yinghui He ◽  
...  
Keyword(s):  
Thin Film ◽  
Conjugated Polymers ◽  
Building Block ◽  
Conjugated Polymer ◽  
Thin Film Transistors ◽  
Strong Acid ◽  
Organic Thin Film Transistors ◽  
Organic Thin Film ◽  
Polymer Semiconductors

Pyrazino[2,3-g]quinoxaline-2,7-dione (PQx) is used as a building block for π-conjugated polymer semiconductors that demonstrate a strong acid affinity and ambipolar semiconductor performance in thin film transistors.

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.

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 Revealing different aggregational states of a conjugated polymer in solution by a nanopore sensor

2016 ◽  
Vol 7 (8) ◽  
pp. 5287-5293 ◽  
Author(s):  
Bingyuan Guo ◽  
Zhiyi Yao ◽  
Lei Liu ◽  
Hai-Chen Wu
Keyword(s):  
Conjugated Polymers ◽  
Conjugated Polymer

Nanopores are effective and powerful tools for the analysis of conformational and aggregational states of conjugated polymers in solution.

scholarly journals Conjugated Polymer Donor-Molecular Acceptor Nanohybrids for Photocatalytic Hydrogen Evolution

2019 ◽  
Author(s):  
Haofan Yang ◽  
Xiaobo Li ◽  
Reiner Sebastian Sprick ◽  
Andrew I. Cooper
Keyword(s):  
Photocatalytic Activity ◽  
Charge Transfer ◽  
Conjugated Polymers ◽  
Hydrogen Evolution ◽  
Conjugated Polymer ◽  
Apparent Quantum Yield ◽  
High Hydrogen ◽  
Photocatalytic Hydrogen Evolution ◽  
Efficient Charge ◽  
Donor Acceptor

A library of 237 organic binary/ternary nanohybrids consisting of conjugated polymers donors and both fullerene and non-fullerene molecular acceptors was prepared and screened for sacrificial photocatalytic hydrogen evolution. These donor-acceptor nanohybrids (DANHs) showed significantly enhanced hydrogen evolution rates compared with the parent donor or acceptor compounds. DANHs of <a></a><a>a polycarbazole</a>-based donor combined with a methanofullerene acceptor (PCDTBT/PC<sub>60</sub>BM) showed a high hydrogen evolution rate of 105.2 mmol g<sup>-1</sup> h<sup>-1</sup> under visible light (λ > 420 nm). This DANH photocatalyst produced 5.9 times more hydrogen than a sulfone-containing polymer (P10) under the same conditions, which is one of the most efficient organic photocatalysts reported so far. An apparent quantum yield of hydrogen evolution of 3.0 % at 595 nm was measured for this DANH. The photocatalytic activity of the DANHs, which in optimized cases reached 179.0 mmol g<sup>-1</sup> h<sup>-1</sup>, is attributed to efficient charge transfer at the polymer donor/molecular acceptor interface. We also show that ternary donor<sub>A</sub>-donor<sub>B</sub>-acceptor nanohybrids can give higher activities than binary donor-acceptor hybrids in some cases.

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