Journal ArticleDOI
Polythiophene derivative with the simplest conjugated-side-chain of alkenyl: synthesis and applications in polymer solar cells and field-effect transistors.
TLDR
A comparative study of the newly synthesized polymer with poly(3-hexylthiophene) (P3HT), one of the most widely investigated optoelectronic materials, is presented and the effect of double bond on the side chain toward thermal stability and optical and electronic properties is presented.Abstract:
A polythiophene derivative with the simplest conjugated side chain, poly(3-hexy-1-enylthiophene) (P3HET), was synthesized by Stille self-coupling reaction. A comparative study of the newly synthesized polymer with poly(3-hexylthiophene) (P3HT), one of the most widely investigated optoelectronic materials, is presented. The effect of double bond (C═C) on the side chain toward thermal stability and optical and electronic properties was fully characterized by TGA, UV−vis absorption spectroscopy, photoluminescence spectroscopy, and cyclic voltammetry. The hole mobility of P3HET determined by the space−charge-limited current (SCLC) model is 6.7 × 10−3 cm2/V s, which is comparable to P3HT with similar molecular weight and regularity and 1 order of magnitude higher than most conjugated-side-chain polythiophene derivatives. Polymer solar cells (PSCs) and field effect transistors (FETs) were fabricated respectively to exploit its potential applications in optoelectronic devices.read more
Citations
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Journal ArticleDOI
Side-chain engineering of high-efficiency conjugated polymer photovoltaic materials
TL;DR: In this article, the side-chain engineering of conjugated polymer donor materials is reviewed, including the optimization of flexible side-chains for balancing solubility and intermolecular packing (aggregation), electron-withdrawing substituents for lowering HOMO energy levels, and two-dimensional (2D)-conjugated polymers with conjugation sidechains for broadening absorption and enhancing hole mobility.
Journal ArticleDOI
Regioregular Poly(3-pentylthiophene): Synthesis, Self-Assembly of Nanowires, High-Mobility Field-Effect Transistors, and Efficient Photovoltaic Cells
TL;DR: In this paper, the synthesis, characterization, solution-phase assembly of nanowires, field-effect charge transport, and photovoltaic properties of regioregular poly(3-pentylthiophene) (P3PT) were investigated, and two samples of P3PT with weight-average molecular weights of 61 800 and 77 000 and 1.4−1.5 polydispersity index have comparable solubility and processability in organic solvents as P3HT but have a higher melting transition at 259 °
Journal ArticleDOI
Design of donors with broad absorption regions and suitable frontier molecular orbitals to match typical acceptors via substitution on oligo(thienylenevinylene) toward solar cells
Shanshan Tang,Jingping Zhang +1 more
TL;DR: The calculated reorganization energies of designed derivatives suggest them to be good potential ambipolar transport materials under the proper operating conditions and to be recommended theoretically for solar cells based on the proper match for FMOs between donors and acceptors.
Journal ArticleDOI
Cyclometalated Platinum Polymers: Synthesis, Photophysical Properties, and Photovoltaic Performance
Tabitha A. Clem,David F. J. Kavulak,David F. J. Kavulak,Erik J. Westling,Erik J. Westling,Jean M. J. Fréchet,Jean M. J. Fréchet +6 more
TL;DR: In this article, the synthesis and characterization of platinum-containing conjugated polymers with triplet exciton formation is presented, and the ability of the materials to sensitize formation of singlet oxygen varies with excitation wavelength and with the change from solution to solid state.
Journal ArticleDOI
Synthesis and photophysical properties of hyperbranched polyfluorenes containing 2,4,6-tris(thiophen-2-yl)-1,3,5-triazine as the core
Li Zou,Yan Liu,Nan Ma,Ermelinda M. S. Maçôas,José M. G. Martinho,Mika Pettersson,Xingguo Chen,Jingui Qin +7 more
TL;DR: A series of new hyperbranched polymers containing a 2,4,6-tris(thiophen-2-yl)-1,3,5-triazine core unit and polyfluorene chain arms have been synthesized via Suzuki coupling, and characterized by NMR, IR and GPC.
References
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Journal ArticleDOI
High-efficiency solution processable polymer photovoltaic cells by self-organization of polymer blends
TL;DR: In this article, the authors report highly efficient polymer solar cells based on a bulk heterojunction of polymer poly(3-hexylthiophene) and methanofullerene.
Journal ArticleDOI
The chemistry of conducting polythiophenes
TL;DR: Polythiophenes are an important representative class of conjugated polymers that form some of the most environmentally and thermally stable materials that can be used as electrical conductors, nonlinear optical devices, polymer LEDs, electrochromic or smart windows, photoresists, antistatic coatings, sensors, batteries, electromagnetic shielding materials, artificial noses and muscles, solar cells, electrodes, microwave absorbing materials, new types of memory devices, nanoswitches, optical modulators and valves, imaging materials, polymer electronic interconnects, nanoelectronic and optical
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A high-mobility electron-transport polymer with broad absorption and its use in field-effect transistors and all-polymer solar cells.
Xiaowei Zhan,Zhan'ao Tan,Benoit Domercq,Zesheng An,Xuan Zhang,Stephen Barlow,Yongfang Li,Daoben Zhu,Bernard Kippelen,Seth R. Marder +9 more
TL;DR: An electron-transport polymer with good solution processibility, excellent thermal stability, and high electron affinity based on alternating perylene diimide and dithienothiophene units has been synthesized.
Journal ArticleDOI
High Photovoltaic Performance of a Low‐Bandgap Polymer
David Mühlbacher,Markus C. Scharber,Mauro Morana,Zhengguo Zhu,David Waller,Russel Gaudiana,Christoph J. Brabec +6 more
Journal ArticleDOI
High-performance semiconducting polythiophenes for organic thin-film transistors.
TL;DR: A class of liquid crystalline regioregular polythiophenes, PQTs, that possess sufficient air stability to enable achievement of excellent TFT properties under ambient conditions and will help bring the long-standing concept of low-cost organic/polymer transistor circuits closer to commercial reality.