Taming Charge Transport in Semiconducting Polymers with Branched Alkyl Side Chains

Near-infrared (NIR) phototransistors based on diketopyrrolopyrrole polymers with partial removal of side chains are reported with improved NIR photoresponses, which take advantage of both strengthened NIR absorption and improved charge transport.

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Effect of Alkyl Side Chains on Intercrystallite Ordering in Semiconducting Polymers

Macromolecules ◽

10.1021/acs.macromol.8b02760 ◽

2019 ◽

Vol 52 (7) ◽

pp. 2853-2862 ◽

Cited By ~ 9

Author(s):

Kathryn O’Hara ◽

Christopher J. Takacs ◽

Shengjian Liu ◽

Federico Cruciani ◽

Pierre Beaujuge ◽

...

Keyword(s):

Semiconducting Polymers ◽

Side Chains ◽

Alkyl Side Chains

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Synthesis of diketopyrrolopyrrole-based polymers with polydimethylsiloxane side chains and their application in organic field-effect transistors

Royal Society Open Science ◽

10.1098/rsos.172025 ◽

2018 ◽

Vol 5 (3) ◽

pp. 172025 ◽

Cited By ~ 3

Author(s):

Inori Ohnishi ◽

Kazuhito Hashimoto ◽

Keisuke Tajima

Keyword(s):

Thin Films ◽

Conjugated Polymers ◽

Charge Transport ◽

Field Effect ◽

Field Effect Transistors ◽

Side Chains ◽

Organic Field Effect Transistors ◽

High Solubility ◽

Solid Films ◽

Alkyl Side Chains

Linear polydimethylsiloxane (PDMS) was investigated as a solubilizing group for π-conjugated polymers with the aim of combining high solubility in organic solvents with the molecular packing in solid films that is advantageous for charge transport. Diketopyrrolopyrrole-based copolymers with different contents and substitution patterns of the PDMS side chains were synthesized and evaluated for application in organic field-effect transistors. The PDMS side chains greatly increased the solubility of the polymers and led to shorter d -spacings of the π-stacking in the thin films compared with polymers containing conventional branched alkyl side chains.

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A strong influence of the positions of solubilizing alkyl side chains on optoelectronic and photovoltaic properties of TTBTBTT-based conjugated polymers

Journal of Materials Chemistry C ◽

10.1039/c4tc02432j ◽

2015 ◽

Vol 3 (7) ◽

pp. 1497-1506 ◽

Cited By ~ 21

Author(s):

A. V. Akkuratov ◽

D. K. Susarova ◽

Y. L. Moskvin ◽

D. V. Anokhin ◽

A. V. Chernyak ◽

...

Keyword(s):

Conjugated Polymers ◽

Charge Transport ◽

Strong Influence ◽

Relative Orientation ◽

Side Chains ◽

Photovoltaic Properties ◽

Alkyl Side Chains

It has been shown that positions and relative orientation of the alkyl side chains in the carbazole–TTBTBTT co-polymers affect significantly their optoelectronic, charge transport and photovoltaic properties.

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Phytol-Derived Alkyl Side Chains for π-Conjugated Semiconducting Polymers

Chemistry of Materials ◽

10.1021/acs.chemmater.8b05240 ◽

2019 ◽

Vol 31 (6) ◽

pp. 2097-2105 ◽

Cited By ~ 2

Author(s):

Fanji Wang ◽

Kyohei Nakano ◽

Hiroshi Segawa ◽

Keisuke Tajima

Keyword(s):

Semiconducting Polymers ◽

Side Chains ◽

Alkyl Side Chains

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Synthesis of New Derivatives of BEDT-TTF: Installation of Alkyl, Ethynyl, and Metal-Binding Side Chains and Formation of Tris(BEDT-TTF) Systems

Magnetochemistry ◽

10.3390/magnetochemistry7080110 ◽

2021 ◽

Vol 7 (8) ◽

pp. 110

Author(s):

Songjie Yang ◽

Matteo Zecchini ◽

Andrew Brooks ◽

Sara Krivickas ◽

Desiree Dalligos ◽

...

Keyword(s):

Metal Binding ◽

Tricarboxylic Acid ◽

Metal Salts ◽

Side Chain ◽

Side Chains ◽

Ethynyl Group ◽

X Ray ◽

Transition Metal Salts ◽

Alkyl Side Chains ◽

Derivatives Of

The syntheses of new BEDT-TTF derivatives are described. These comprise BEDT-TTF with one ethynyl group (HC≡C-), with two (n-heptyl) or four (n-butyl) alkyl side chains, with two trans acetal (-CH(OMe)2) groups, with two trans aminomethyl (-CH2NH2) groups, and with an iminodiacetate (-CH2N(CH2CO2−)2 side chain. Three transition metal salts have been prepared from the latter donor, and their magnetic properties are reported. Three tris-donor systems are reported bearing three BEDT-TTF derivatives with ester links to a core derived from benzene-1,3,5-tricarboxylic acid. The stereochemistry and molecular structure of the donors are discussed. X-ray crystal structures of two BEDT-TTF donors are reported: one with two CH(OMe)2 groups and with one a -CH2N(CH2CO2Me)2 side chain.

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