Novel copolymers incorporating dithieno[3,2-b:2′,3′-d]thiophene moieties for air-stable and high performance organic field-effect transistors

Lü, Kun; Di, Chong‐an; Xi, Hongxia; Liu, Yunqi; Yu, Gui; Qiu, Weibin; Zhang, Hengjun; Gao, Xike; Liu, Ying; Qi, Ting; Du, Chunfang; Zhu, Daoben

doi:10.1039/b801603h

Cited by 48 publications

(30 citation statements)

References 40 publications

(6 reference statements)

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“…[28] As mentioned above, the molecular packing determines the device performance. For dip-coated polymer films, the self-organization time is longer than for the spincoated films.…”

mentioning

confidence: 98%

“…P1 and P2 are copolymers that incorporate rigid dithieno[3,2-b:2 0 ,3 0 -d]thiophene moieties and single thiophene units, which were synthesized according to the our previous report. [28] All these polymers possess high field-effect mobilities. Figure 1 shows a schematic illustration of the solvent-assisted re-annealing process.…”

mentioning

confidence: 99%

“…The mobility is about three times higher than the value before the solvent-assistant treatment, and about eight times higher than for the spin-coated devices. [28] To further understand the influence of the solvent-assisted re-annealing treatment on the film properties, atomic force microscope (AFM) and X-ray diffraction (XRD) characterization were carried out. Figure 3 shows the AFM images and their corresponding XRD pattern of the polymer films (100 nm) versus re-annealing operation cycles.…”

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confidence: 99%

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Solvent‐Assisted Re‐annealing of Polymer Films for Solution‐Processable Organic Field‐Effect Transistors

Lü

Zhang

et al. 2010

Advanced Materials

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“…[28] As mentioned above, the molecular packing determines the device performance. For dip-coated polymer films, the self-organization time is longer than for the spincoated films.…”

mentioning

confidence: 98%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Solvent‐Assisted Re‐annealing of Polymer Films for Solution‐Processable Organic Field‐Effect Transistors

Lü

Zhang

et al. 2010

Advanced Materials

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“…Dithieno[3,2-b:2',3'-d]thiophene (DTT) 1, a donor [13] with a planar core, had been extensively used in the construction of oligomeric [14][15][16][17][18][19][20][21][22][23] and polymeric [24][25][26] semiconductors.…”

Section: Introductionmentioning

confidence: 99%

Mixed-stack architecture and solvatomorphism of trimeric perfluoro-ortho-phenylene mercury complexes with dithieno[3,2-b:2′,3′-d]thiophene

Castañeda

Khrustalev

Fonari

et al. 2015

Journal of Molecular Structure

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT

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“…In the case of fused-ring systems, dithieno[3,2-b:2!,3!-d]thiophene (DTT) is well known as an important building block due to its high mobility [18,19]. Recently, organic field-effect transistors (OFET) [20,21] and PSCs [22,23] containing dithieno[3,2-b:2!,3!-d]thiophene (DTT) building block in the D-A type copolymers have been reported. Recently, 2,1,3-benzothiadiazole (BT) has been utilized to construct some n-type semiconducting polymers showing high electron mobility [24][25][26].…”

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confidence: 99%

Photovoltaic properties and annealing effects of a low bandgap copolymer containing dithienothiophene and benzothiadiazole units

Wang¹,

Shieh²,

Yang³

et al. 2013

Express Polym. Lett.

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Abstract.A conjugated alternating copolymer as the donor material of the active layer in polymer solar cells has been designed and synthesized via Stille coupling reaction. The alternating structure consisted of 3,5-didecanyldithieno[3,2-b:2!,3!-d]thiophene (DDTT) donor unit and 5,6-bis(tetradecyloxy)benzo-2,1,3-thiadiazole (BT) acceptor unit. Since both units have been attached pendant chains, the polymer was soluble in common organic solvents. UV-vis spectrum exhibited a broad absorption band in the range of 270-780 nm and a low bandgap of 1.83 eV. The highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy levels of the polymer were estimated to be -5.10 and -3.27 eV, respectively. Based on the ITO/PEDOT:PSS/PDDTTBT:PCBM/Al device structure, the power conversion efficiency (PCE) under the illumination of AM 1.5 (100 mW/cm 2 ) was 0.127%. The effects of annealing temperature (50-150°C) for 30 min on the device performance were studied. It was found that PCE of 0.292% could be acquired under the annealing condition at 50°C for 30 min. The improved device efficiency under the optimal condition was confirmed by the higher light harvest in UV-vis spectra, the enhanced quenching of photoluminescence (PL) emission, and the improved nanoscale morphology by atomic force microscopy (AFM) examination.

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Novel copolymers incorporating dithieno[3,2-b:2′,3′-d]thiophene moieties for air-stable and high performance organic field-effect transistors

Cited by 48 publications

References 40 publications

Solvent‐Assisted Re‐annealing of Polymer Films for Solution‐Processable Organic Field‐Effect Transistors

Solvent‐Assisted Re‐annealing of Polymer Films for Solution‐Processable Organic Field‐Effect Transistors

Mixed-stack architecture and solvatomorphism of trimeric perfluoro-ortho-phenylene mercury complexes with dithieno[3,2-b:2′,3′-d]thiophene

Photovoltaic properties and annealing effects of a low bandgap copolymer containing dithienothiophene and benzothiadiazole units

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