Fine-tuning the solid-state ordering and thermoelectric performance of regioregular P3HT analogues by sequential oxygen-substitution of carbon atoms along the alkyl side chains

2019 ◽  
Vol 7 (8) ◽  
pp. 2333-2344 ◽  
Author(s):  
Liangjun Chen ◽  
Wei Liu ◽  
Yonggao Yan ◽  
Xianli Su ◽  
Shengqiang Xiao ◽  
...  
Keyword(s):  
Solid State ◽  
Thermoelectric Properties ◽  
Fine Tuning ◽  
Thermoelectric Performance ◽  
Side Chains ◽  
Alkyl Side Chains ◽  
Film Microstructure ◽  
Oxygen Substitution

Sequential O-substitution along the alkyl side chains of regioregular P3HT analogues enables fine-tuning of their film microstructure and thermoelectric properties.

Cyclic hexapeptoids with N-alkyl side chains: solid-state assembly and thermal behaviour

CrystEngComm ◽  
2020 ◽  
Vol 22 (38) ◽  
pp. 6371-6384 ◽  
Author(s):  
Giovanni Pierri ◽  
Rosaria Schettini ◽  
Jürgen Nuss ◽  
Robert E. Dinnebier ◽  
Francesco De Riccardis ◽  
...  
Keyword(s):  
Solid State ◽  
Thermal Behaviour ◽  
Lattice Energy ◽  
Side Chains ◽  
X Ray Diffraction ◽  
Energy Calculations ◽  
X Ray ◽  
Alkyl Side Chains

The solid state assembly of two cyclic hexapeptoids decorated respectively with five and six carbon N-alkyl side chains is analyzed by X-ray diffraction, intermolecular energies and lattice energy calculations.

A New Challenge of Polymer Thermoelectric Materials as Ecomaterials

2007 ◽  
Vol 539-543 ◽  
pp. 2329-2332 ◽  
Author(s):  
Yoshikazu Shinohara ◽  
Yoshio Imai ◽  
Yukihiro Isoda ◽  
Kentaro Hiraishi ◽  
Hachiro Nakanishi
Keyword(s):  
Electrical Conductivity ◽  
Seebeck Coefficient ◽  
Thermoelectric Properties ◽  
Oxidative Polymerization ◽  
Side Chain ◽  
Side Chains ◽  
Nmr Analysis ◽  
Alkyl Side Chains ◽  
High Seebeck Coefficient ◽  
Polymer Thermoelectric

Typical conductive polymers of poly(3-alkylthiophenes) were synthesized by oxidative polymerization. Polythiophene with no side chain was also electrolyticaly polymerized. Alkyl side chains were CnH2n+1 with n=4, 6, 8, 12. The regioregularity with the HT linkage was larger than 99% based on NMR analysis. We have evaluated the effect of side chain size on the thermoelectric properties of Seebeck coefficient and electrical conductivity. The results were as follows: 1) Seebeck coefficient decreased with an increasing electrical conductivity. 2) High Seebeck coefficient >1mV/K was observed at low electrical conductivity <10-2S/cm. 3) Small side chains, especially no side chain caused higher thermoelectric properties of polythiophene series.

scholarly journals Tuning the Optical Characteristics of Diketopyrrolopyrrole Molecules in the Solid State by Alkyl Side Chains

2020 ◽  
Vol 124 (46) ◽  
pp. 25229-25238
Author(s):  
Bart W. H. Saes ◽  
Martin Lutz ◽  
Martijn M. Wienk ◽  
Stefan C. J. Meskers ◽  
René A. J. Janssen
Keyword(s):  
Solid State ◽  
Optical Characteristics ◽  
Side Chains ◽  
Alkyl Side Chains

High-Temperature Thermoelectric Properties of Pb- and La-Substituted Bi2Sr2Co2Oy Misfit Compounds

2010 ◽  
Vol 105-106 ◽  
pp. 336-338 ◽  
Author(s):  
Hao Shan Hao ◽  
Jin Qin Ye ◽  
Yong Tao Liu ◽  
Xing Hu
Keyword(s):  
High Temperature ◽  
Solid State ◽  
Thermoelectric Properties ◽  
Power Factor ◽  
Solid State Reaction ◽  
Solid State Reaction Method ◽  
Thermoelectric Performance ◽  
Simultaneous Increase ◽  
Reaction Method ◽  
Seebeck Coefficients

Pb- and La-substituted (Bi,Pb)2(Sr,La)2Co2Oy samples were prepared by solid-state reaction method and the effect of element substitution on the high-temperature thermoelectric properties was investigated. It was found that the presence of Pb and La elements improved the thermoelectric properties of the Bi2Sr2Co2Oy system owing to the simultaneous increase of conductivity and Seebeck coefficients. The optimal thermoelectric performance was obtained in Pb and La co-substituted samples and the power factor could reach 2.1×10-4Wm-1K-2 at 1000K.

Fine Tuning Surface Energy of Poly(3-hexylthiophene) by Heteroatom Modification of the Alkyl Side Chains

2015 ◽  
Vol 4 (7) ◽  
pp. 725-730 ◽  
Author(s):  
Jenna B. Howard ◽  
Sangtaik Noh ◽  
Alejandra E. Beier ◽  
Barry C. Thompson
Keyword(s):  
Surface Energy ◽  
Fine Tuning ◽  
Side Chains ◽  
Alkyl Side Chains

Thermoelectric Properties of Poly(3-Alkylthiophenes)

2005 ◽  
Vol 492-493 ◽  
pp. 141-144 ◽  
Author(s):  
Yoshikazu Shinohara ◽  
K. Ohara ◽  
Hachiro Nakanishi ◽  
Yoshio Imai ◽  
Yukihiro Isoda
Keyword(s):  
Electrical Conductivity ◽  
Seebeck Coefficient ◽  
Thermoelectric Properties ◽  
Conductive Polymers ◽  
Oxidative Polymerization ◽  
Side Chain ◽  
Side Chains ◽  
Nmr Analysis ◽  
Alkyl Side Chains ◽  
High Seebeck Coefficient

Typical conductive polymers of poly(3-alkylthiophenes) were synthesized by oxidative polymerization. Alkyl side chains were CnH2n+1 with n=4, 6, 8, 12. The regioregularity with the HT linkage was larger than 99% based on NMR analysis. Completely regioregular head-to-tail (HT) poly(3-alkylthiophenes) were obtained. We have evaluated the effect of side chain size on the thermoelectric properties of Seebeck coefficient and electrical conductivity. The results were as follows: 1) Seebeck coefficient decreased with an increasing electrical conductivity. 2) High Seebeck coefficient >1mV/K was observed at low electrical conductivity <10-2S/cm. 3) The small side chain caused the higher electrical conductivity in the range of electrical conductivity <10- 1S/cm.

scholarly journals Solid-State Organization and Ambipolar Field-Effect Transistors of Benzothiadiazole-Cyclopentadithiophene Copolymer with Long Branched Alkyl Side Chains

Polymers ◽  
2013 ◽  
Vol 5 (2) ◽  
pp. 833-846 ◽  
Author(s):  
Wojciech Pisula ◽  
Hoi Tsao ◽  
Dmytro Dudenko ◽  
Don Cho ◽  
Sreenivasa Puniredd ◽  
...  
Keyword(s):  
Solid State ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Side Chains ◽  
Alkyl Side Chains ◽  
State Organization

Structure and dynamics of rodlike polyester with long n-alkyl side chains over a wide range of temperatures by solid state 13C NMR

2003 ◽  
Vol 650 (1-3) ◽  
pp. 175-180 ◽  
Author(s):  
Masanori Matsui ◽  
Yuji Yamane ◽  
Hideaki Kimura ◽  
Shigeki Kuroki ◽  
Isao Ando ◽  
...  
Keyword(s):  
Solid State ◽  
13C Nmr ◽  
Side Chains ◽  
Structure And Dynamics ◽  
Wide Range ◽  
Alkyl Side Chains ◽  
Solid State 13C Nmr

Synthesis and solid state helix to helix rearrangement of poly(phenylacetylene) bearing n-octyl alkyl side chains

2014 ◽  
Vol 5 (3) ◽  
pp. 971-978 ◽  
Author(s):  
Asahi Motoshige ◽  
Yasuteru Mawatari ◽  
Yoshiaki Yoshida ◽  
Ranko Motoshige ◽  
Masayoshi Tabata
Keyword(s):  
Solid State ◽  
Side Chains ◽  
Alkyl Side Chains
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