Systematic Investigation of Solution-State Aggregation Effect on Electrical Conductivity in Doped Conjugated Polymers

Two new π-conjugated polymers (Poly[(N-10’-(octan-3-yl)-phenothiazin-3,7-ylene)-alt- (4’,7’-bis(thiophen-2-yl)benzo[c][1,2,5]thiadiazole)] (PoPTZ-BT-BTD), Poly[(N-10`-(octan-3-yl) -phenothiazin-3,7-ylene)-alt-(4’,7’-bis(thiophen-2-yl)-5,6-bis(octyloxy)benzo[c][1,2,5]thiadiazole)] (PoPTZ-BT-BoBTD) ) were synthesized through the Suzuki coupling reaction for organic photovoltaics (OPVs), and their optical and electrochemical properties were analyzed. Their wavelength of maximun absorption was 526 nm and 506 nm in solution state, repectively, and 560 nm and 522 nm in film state, respectively. Their band-gap energy was 2.01 eV and 2.09 eV in solution state, and 1.82 eV and 1.91 eV in film state, respectively. The results of analysis of the chrateristics of photovoltaics, 0.79 % and 0.99 % of the maximum power conversion efficiencies (PCE), repectively.

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Conjugated Polymers: Exploring Wholly Doped Conjugated Polymer Films Based on Hybrid Doping: Strategic Approach for Optimizing Electrical Conductivity and Related Thermoelectric Properties (Adv. Funct. Mater. 42/2020)

Advanced Functional Materials ◽

10.1002/adfm.202070276 ◽

2020 ◽

Vol 30 (42) ◽

pp. 2070276

Author(s):

Sang Eun Yoon ◽

Yeongkwon Kang ◽

Gyeong G. Jeon ◽

Dohyeon Jeon ◽

Sang Yeon Lee ◽

...

Keyword(s):

Electrical Conductivity ◽

Conjugated Polymers ◽

Thermoelectric Properties ◽

Polymer Films ◽

Conjugated Polymer ◽

Strategic Approach

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Preparation and electrical conductivity of some conjugated polymers

Recueil des Travaux Chimiques des Pays-Bas ◽

10.1002/recl.19650840205 ◽

2010 ◽

Vol 84 (2) ◽

pp. 184-186 ◽

Cited By ~ 1

Author(s):

G. De Vries ◽

L. K. H. van Beek

Keyword(s):

Electrical Conductivity ◽

Conjugated Polymers

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Electrical Conductivity in Conjugated Polymers

Conductive Polymers and Plastics ◽

10.1016/b978-188420777-8.50002-3 ◽

1999 ◽

pp. 1-9 ◽

Cited By ~ 3

Author(s):

Arthur J. Epstein

Keyword(s):

Electrical Conductivity ◽

Conjugated Polymers

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Peculiarities of Oxidative Polymerization of Diarylaminodichlorobenzoquinones

Polymers ◽

10.3390/polym13213657 ◽

2021 ◽

Vol 13 (21) ◽

pp. 3657

Author(s):

Andrey V. Orlov ◽

Svetlana G. Kiseleva ◽

Galina P. Karpacheva ◽

Dmitriy G. Muratov

Keyword(s):

Electrical Conductivity ◽

Conjugated Polymers ◽

Photoelectron Spectroscopy ◽

Oxidative Polymerization ◽

Amorphous Structure ◽

Polymerization Reaction ◽

X Ray ◽

Monomer Ratio ◽

Highly Active ◽

First Time

New oxidative polymerization monomers—diarylaminodichlorobenzoquinones were synthesised by alkylating aniline, m-phenylenediamine and methanilic acid with chloranil. Oxidative polymerization of diarylaminodichlorobenzoquinones was studied for the first time in relation to the concentration of the monomer, acid, and oxidant/monomer ratio. It was found that the synthesized monomers are highly active in the polymerization reaction, and the oxidation rate grows with the increase in the acid concentration. Only one arylamine group is involved in the polymerization reaction. The optimal oxidant/monomer ratio is stoichiometric for one arylamine group, despite the bifunctionality of the monomers. It was shown that the type of the substituent in the aniline ring (electron donor or electron acceptor) determines the growth of the polymer chain and the structure of the resulting conjugated polymers. A mechanism for the formation of active polymerization centers for diarylaminodichlorobenzoquinones was proposed. FTIR-, NMR-, X-ray photoelectron spectroscopy, and SEM were used to identify the structure of the synthesized monomers and polymers. The obtained polymers have an amorphous structure and a loose globular morphology. The frequency dependence of the electrical conductivity was studied.

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Open‐Shell Donor–Acceptor Conjugated Polymers with High Electrical Conductivity

Advanced Functional Materials ◽

10.1002/adfm.201909805 ◽

2020 ◽

Vol 30 (24) ◽

pp. 1909805 ◽

Cited By ~ 5

Author(s):

Lifeng Huang ◽

Naresh Eedugurala ◽

Anthony Benasco ◽

Song Zhang ◽

Kevin S. Mayer ◽

...

Keyword(s):

Electrical Conductivity ◽

Conjugated Polymers ◽

Open Shell ◽

High Electrical Conductivity ◽

Donor Acceptor

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Extended 2,2′-Bipyrroles: New Monomers for Conjugated Polymers with Tailored Processability

Polymers ◽

10.3390/polym11061068 ◽

2019 ◽

Vol 11 (6) ◽

pp. 1068 ◽

Cited By ~ 3

Author(s):

Robert Texidó ◽

Gonzalo Anguera ◽

Sergi Colominas ◽

Salvador Borrós ◽

David Sánchez-García

Keyword(s):

Electrical Conductivity ◽

Cyclic Voltammetry ◽

Conducting Polymers ◽

Conjugated Polymers ◽

Oxidation Potential ◽

Polymeric Films ◽

Electrochromic Properties ◽

Extended Length ◽

Probe Measurements

The synthesis of 2,2′-bipyrroles substituted at positions 5,5′ with pyrrolyl, N-methyl-pyrrolyl and thienyl groups and their application in the preparation of conducting polymers is reported herein. The preparation of these monomers consisted of two synthetic steps from a functionalized 2,2′-bipyrrole: Bromination of the corresponding 2,2′-bipyrrole followed by Suzuki or Stille couplings. These monomers display low oxidation potential compared to pyrrole because of the extended length of their conjugation pathway. The resulting monomers can be polymerized through oxidative/electropolymerization. Electrical conductivity and electrochromic properties of the electrodeposited polymeric films were evaluated using 4-point probe measurements and cyclic voltammetry to evaluate their applicability in electronics.

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