A high-mobility electron-transporting polymer for printed transistors

He, Yan; Chen, Zhihua; Zheng, Yan; Newman, Christopher R.; Quinn, Jordan R.; Dötz, Florian; Kastler, Marcel; Facchetti, Antonio

doi:10.1038/nature07727

Cited by 2,812 publications

(2,506 citation statements)

References 51 publications

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“…Polymer dielectrics are essential for providing these devices with overall flexibility, stretchability, printability, and in some cases biocompatibility 1, 4, 5, 6, 7. Microstructural pattern designs on OFET dielectrics for achieving high performance devices have been realized by using polymer insulators too 8, 9, 10.…”

Section: Introductionmentioning

confidence: 99%

Pursuing Polymer Dielectric Interfacial Effect in Organic Transistors for Photosensing Performance Optimization

Chu

et al. 2017

Advanced Science

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Polymer dielectrics in organic field‐effect transistors (OFETs) are essential to provide the devices with overall flexibility, stretchability, and printability and simultaneously introduce charge interaction on the interface with organic semiconductors (OSCs). The interfacial effect between various polymer dielectrics and OSCs significantly and intricately influences device performance. However, understanding of this effect is limited because the interface is buried and the interfacial charge interaction is difficult to stimulate and characterize. Here, this challenge is overcome by utilizing illumination to stimulate the interfacial effect in various OFETs and to characterize the responses of the effect by measuring photoinduced changes of the OFETs performances. This systemic investigation reveals the mechanism of the intricate interfacial effect in detail, and mathematically explains how the photosensitive OFETs characteristics are determined by parameters including polar group of the polymer dielectric and the OSC side chain. By utilizing this mechanism, performance of organic electronics can be precisely controlled and optimized. OFETs with strong interfacial effect can also show a signal additivity caused by repeated light pulses, which is applicable for photostimulated synapse emulator. Therefore, this work enlightens a detailed understanding on the interface effect and provides novel strategies for optimizing OFET photosensory performances.

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Section: Introductionmentioning

confidence: 99%

Pursuing Polymer Dielectric Interfacial Effect in Organic Transistors for Photosensing Performance Optimization

Chu

et al. 2017

Advanced Science

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“…It exhibited properties like high electron mobility >0.85 cm 2 V −1 s −1 in OFET, high PCE efficiency >5% in all-PSCs, solution processability, high crystalline nature, and light absorption capability near visible and infrared region. 15,16,20 However, it exhibited a strong tendency to form aggregates in specific organic solvents that resulted in large-scale phase separation instead of the desirable pure donor/acceptor microphase separation. 28 Consequently, the earlier reports on the all-PSC measurements of P3HT/P(NDI2OD-T2) blend showed very low device efficiency value (PCE, 0.2%).…”

Section: ■ Introductionmentioning

confidence: 99%

Improved All-Polymer Solar Cell Performance of n-Type Naphthalene Diimide–Bithiophene P(NDI2OD-T2) Copolymer by Incorporation of Perylene Diimide as Coacceptor

et al. 2016

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Naphthalene diimide−bithiophene P(NDI2OD-T2) is a well-known donor−acceptor polymer, previously explored as n-type material in all-polymer solar cells (all-PSCs) and organic field effect transistor (OFETs) applications. The optical, bulk, electrochemical, and semiconducting properties of P(NDI2OD-T2) polymer were tuned via random incorporation of perylene diimide (PDI) as coacceptor with naphthalene diimide (NDI). Three random copolymers containing 2,2′-bithiophene as donor unit and varying compositions of naphthalene diimide (NDI) and perylene diimide (xPDI, x = 15, 30, and 50 mol % of PDI) as two mixed acceptors were synthesized by Stille coupling copolymerization. Proton NMR spectra recorded in CDCl 3 showed that the π−π stacking induced aggregation among the naphthalene units could be successfully disrupted by the random incorporation of bulky PDI units. The newly synthesized random copolymers were investigated as electron acceptors in BHJ all-PSCs, and their performance was compared with P(NDI2OD-T2) as reference polymer. An enhanced PCE of 5.03% was observed for BHJ all-PSCs (all-polymer solar cells) fabricated using NDI-Th-PDI30 as acceptor and PTB7-Th as donor, while the reference polymer blend with the same donor polymer exhibited PCE of 2.97% efficiency under similar conditions. SCLC bulk carrier mobility measured for blend devices showed improved charge mobility compared to reference polymer, with PTB7-Th:NDI-Th-PDI30 blend device exhibiting the high hole and electron mobility of 4.2 × 10 −4 and 1.5 × 10 −4 cm 2 /(V s), respectively. This work demonstrates the importance of molecular design via random copolymer strategy to control the bulk crystallinity, compatibility, blend morphology, and solar cell performance of n-type copolymers.

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“…In the last two decades, various functions of plastic devices have been demonstrated, including polymer light-emitting diodes (PLEDs) [4,5] for commercial flat panel displays and white solid lighting sources, polymer solar cells (PSCs) [6,7], polymer thin-film transistors [8][9][10][11], polymer lasers [12][13][14][15], polymer photodetectors [16][17][18][19], polymer memory for information storage [20][21][22][23][24][25] and others [26][27][28]. In this area, the basic open question pertaining to commercialization is to fabricate low-cost, stable and high-performance thin-film devices.…”

Section: Introductionmentioning

confidence: 99%

Fluorene-based macromolecular nanostructures and nanomaterials for organic (opto)electronics

Xie

Yang

Lin

et al. 2013

Phil. Trans. R. Soc. A.

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Nanotechnology not only opens up the realm of nanoelectronics and nanophotonics, but also upgrades organic thin-film electronics and optoelectronics. In this review, we introduce polymer semiconductors and plastic electronics briefly, followed by various top-down and bottom-up nano approaches to organic electronics. Subsequently, we highlight the progress in polyfluorene-based nanoparticles and nanowires (nanofibres), their tunable optoelectronic properties as well as their applications in polymer light-emitting devices, solar cells, field-effect transistors, photodetectors, lasers, optical waveguides and others. Finally, an outlook is given with regard to four-element complex devices via organic nanotechnology and molecular manufacturing that will spread to areas such as organic mechatronics in the framework of robotic-directed science and technology.

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A high-mobility electron-transporting polymer for printed transistors

Cited by 2,812 publications

References 51 publications

Pursuing Polymer Dielectric Interfacial Effect in Organic Transistors for Photosensing Performance Optimization

Pursuing Polymer Dielectric Interfacial Effect in Organic Transistors for Photosensing Performance Optimization

Improved All-Polymer Solar Cell Performance of n-Type Naphthalene Diimide–Bithiophene P(NDI2OD-T2) Copolymer by Incorporation of Perylene Diimide as Coacceptor

Fluorene-based macromolecular nanostructures and nanomaterials for organic (opto)electronics

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