Melt‐Processing of Complementary Semiconducting Polymer Blends for High Performance Organic Transistors

Zhao, Yan; Zhao, Xikang; Roders, Michael; Gumyusenge, Aristide; Ayzner, Alexander L.; Mei, Jianguo

doi:10.1002/adma.201605056

Cited by 87 publications

(114 citation statements)

References 37 publications

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“…In 2017, Mei et al [42] reported a novel strategy to make meltprocessing complementary semiconducting polymer blends (c-SPBs) without conventional solution-processing methods. c-SPB was a healable semiconducting polymer that consisted of a matrix polymer with conjugation-break spacers along the polymer backbone and a fully conjugated polymer as tie chain polymer.…”

Section: Wwwadvelectronicmatdementioning

confidence: 99%

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Engineering of Amorphous Polymeric Insulators for Organic Field‐Effect Transistors

Jiang

Guo

Liu

2017

Adv Elect Materials

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Organic field‐effect transistors (OFETs) have received considerable attention across the world due to their potential applications in integrated circuits for large‐area, flexible and low‐cost electronics, and a series of breakthroughs in their research have been made in the past decade. Although numerous novel organic semiconductive materials with outstanding properties have been synthesized, the fabrication of OFETs and the investigation of amorphous polymer insulators (APIs) are attracting more and more research interest due to their significance in semiconductor growth, charge transport and device stability. In this review, an introduction to APIs and OFETs is given, and the following aspects are then successively discussed: commonly used APIs in OFETs, applications of API in high‐performance OFETs, low‐energy‐consumption OFETs, functional OFETs, and self‐healing OFETs. In the last section, a projection of some future trends for APIs in OFETs is presented.

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Section: Wwwadvelectronicmatdementioning

confidence: 99%

“…[41][42][43][44][45][46][47][48][49][50] It is believed that API engineering could significantly improve the overall device performance of OFETs and move OFETs towards practical applications.…”

Section: Introductionmentioning

confidence: 99%

Engineering of Amorphous Polymeric Insulators for Organic Field‐Effect Transistors

Jiang

Guo

Liu

2017

Adv Elect Materials

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“…This is the first time for the mobility of such blend exceeds 1 cm 2 V −1 s −1 . [41,42] We also proved that zone annealing could be integrated with melt processing to realize a solvent-free process of polymer thin films for transistor devices. The mobility of each device based on c-SPB material processed from melt processing increased after zone annealing, and the highest mobility (0.54 cm 2 V −1 s −1 ) attained has been a record performance for melt-processed organic field-effect transistors.…”

mentioning

confidence: 99%

“…DPP-C0 and DPP-C5 were prepared following the reported procedure. [20] The weight ratio of blend we investigated in this work was 5:95 (W DPP-C0 :W DPP-C5 = 5:95), exhibiting a melting point of 139.3 °C, [42] thus, the blend could melt at a low temperature. Dichlorobenzene solutions of DPP-C0 (3.3 mg mL −1 ) and DPP-C5 (10 mg mL −1 ) were used as the original solutions.…”

mentioning

confidence: 99%

“…The mobility of each device based on c-SPB material processed from melt processing increased after zone annealing, and the highest mobility (0.54 cm 2 V −1 s −1 ) attained has been a record performance for melt-processed organic field-effect transistors. [42] To better apply zone annealing technique, we first explored the optimum operating condition for such material during the zone annealing. The simplified zone annealing schematic diagram was shown in Figure 1e, which was based on the design concept described previously by Liu and Bard.…”

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Zone‐Annealing‐Assisted Solvent‐Free Processing of Complementary Semiconducting Polymer Blends for Organic Field‐Effect Transistors

Xue

Zhao

et al. 2017

Adv Elect Materials

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harvest the charge-carriers transport. [16][17][18] Multiple techniques have been developed for solution-processed organic semiconductors. However, many of these techniques such as spin coating [19,20] and crystallization method [21,22] are incompatible with fast roll-to-roll fabrication and have not been shown to work well in industry. Moreover, the solvents used in solution processing method, most of which are toxic and not environmentally friendly, are easily residual, and the solvent residues suppress the charge mobilities largely. [22,23] Very recently, zone annealing method has been used to significantly improve electrical performance of organic small-molecule semiconductors via introducing a directional thermal gradient to control the crystallization, compatible with roll-to-roll processing and flexible substrates. [24][25][26][27] Zone annealing technique has long been utilized to produce high-purity and improvedorder metals and semiconductors by localized and directional melting and recrystallization since the 1960s. [28] Subsequently, this technique was extended into the purification of organic substances, [29] initially growing large crystals of polymers. [30][31][32] Furthermore, Hashimoto and co-workers for the first time applied this method to block copolymer systems operated above the order-disorder transition temperature (T OD ), [33][34][35][36] successfully modifying the defect structure of materials with long-range order. Also, another zone annealing method operated below the T OD , faster ordering kinetics compared to conventional oven annealing, has been developed, [37,38] exhibiting potential to be adapted to rapid roll-to-roll processing with virtually no limitations to sample dimensions. Zone annealing method provides the potential extension to large area, solvent-free process, and is industrially applicable, however, very few reports have been demonstrated that zone annealing could be effectively applicable in polymer semiconductors so far. Hartmann et al. used a directional epitaxial crystallization to oriented poly(3-hexylthiophene) (P3HT) films, demonstrating semicrystalline films with a high level of 3D crystalline order. [39,40] The thin-film preparation also introduces directional melting, similar to zone annealing. However, the method consisted of using a crystallizable solvent-1,3,5-trichlorobenzene (TCB), which played the role of solvent for P3HT in its liquid form and the crystallization of TCB led to the epitaxial growth of P3HT. Meanwhile, they did not examine the electrical properties of P3HT.Semiconducting polymer thin films, which are usually formed by solutioncasting from their organic solutions, are critical in the development of flexible and printed electronics. To seek out a method that can further improve the electrical properties of semiconducting polymers and also be industrially applicable is of vital significance. In this study, the impact of zone annealing on the charge-transport properties of diketopyrrolopyrrole-based complementary semiconducting polymer blends...

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Analysis of Melt Processing Systems

2021

Plastics Process Analysis, Instrumentation, and Control

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Melt‐Processing of Complementary Semiconducting Polymer Blends for High Performance Organic Transistors

Abstract: Melt-processing of complementary semiconducting polymer blends provides an average charge carrier mobility of 0.4 cm V s and current on/off ratios higher than 10 , a record performance for melt-processed organic field-effect transistors.

Cited by 87 publications

References 37 publications

Engineering of Amorphous Polymeric Insulators for Organic Field‐Effect Transistors

Engineering of Amorphous Polymeric Insulators for Organic Field‐Effect Transistors

Zone‐Annealing‐Assisted Solvent‐Free Processing of Complementary Semiconducting Polymer Blends for Organic Field‐Effect Transistors

Analysis of Melt Processing Systems

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