Novel Eco‐Friendly Starch Paper for Use in Flexible, Transparent, and Disposable Organic Electronics

Jeong, Heejeong; Baek, Seolhee; Han, Singu; Jang, Hayeong; Kim, Se Hyun; Lee, Hwa Sung

doi:10.1002/adfm.201704433

Cited by 100 publications

(43 citation statements)

References 55 publications

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“…In 2018, Jeong et al reported on the preparation of thin, smooth and optically transparent substrates by gelatinization of potato starch (blended with a small amount of chemically crosslinked polyvinyl alcohol to enhance the mechanical properties) and on the fabrication of bottom-gate, top-contact TFTs on these substrates. 44 The authors used a vapor-deposited parylene layer with a thickness of 870 nm as the gate dielectric and evaluated three All TFT layers (source/drain contacts, semiconductor, gate dielectric, gate electrodes) were deposited by inkjet printing. Reprinted with permission.…”

Section: Organic Transistors On Nanocellulose Supercalendered and Spmentioning

confidence: 99%

Organic transistors on paper: a brief review

Zschieschang

Klauk

2019

J. Mater. Chem. C

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Organic transistors on paper: a brief reviewOrganic transistors for flexible electronics applications are usually fabricated on polymeric substrates, but considering the negative impact of plastic waste on the global environment and taking into account the desirable properties of paper, there are more and more efforts to use paper as a substrate for organic transistors.Organic transistors are being developed for a variety of flexible electronics applications. They are usually fabricated on polymeric substrates, but considering the significant negative impact of plastic waste on the global environment and taking into account the many desirable properties of paper, there have also been efforts to use paper as a substrate for organic transistors. In this review we provide a brief overview of these efforts.

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Section: Organic Transistors On Nanocellulose Supercalendered and Spmentioning

confidence: 99%

Organic transistors on paper: a brief review

Zschieschang

Klauk

2019

J. Mater. Chem. C

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“…Organic TFTs have been successfully fabricated on various types of paper, including commercial packaging paper, printing paper, photo paper, homemade paper, starch paper, and banknotes . In some cases, one or several coatings were applied to the surface of the paper prior to TFT fabrication in order to smoothen or seal the surface .…”

Section: Introductionmentioning

confidence: 99%

Low‐Voltage, High‐Frequency Organic Transistors and Unipolar and Complementary Ring Oscillators on Paper

Kraft

Zaki

Letzkus

et al. 2018

Adv Elect Materials

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Paper substrates for flexible, mobile, and disposable electronic applications draw academic and commercial attention due to their many advantages, such as cost efficiency, low weight, mechanical flexibility, and environmental compatibility. For portable electronic applications, it is important that the electronic devices and circuits can be operated with voltages of a few volts, due to the limitations of mobile power supplies, such as solar cells or energy harvesting devices. Here, low‐voltage organic p‐channel and n‐channel transistors as well as unipolar and complementary ring oscillators are fabricated directly on the surface of a banknote. It is demonstrated that low‐power organic integrated circuits on paper substrates can be operated with supply voltages of less than 3 V and with frequencies of several hundred kilohertz. These results emphasize the prospects of organic transistors for smart paper applications.

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“…As people expected, the processability, performance, and stability of electronic materials are basic characteristics of paper electronics which demand that paper‐based circuits must have controllable scale, low resistance and high stability under deformation. Although most paper electronics are disposable, the circuits on paper will also raise environmental concern as they cannot be degraded or recycled like their substrate paper . Burning is the popular method to recycle functional materials such as silver nanoparticles on paper, it will be detrimental to environment and functional materials which are also difficult to be separated from the debris of paper.…”

Section: Introductionmentioning

confidence: 99%

Recyclable Liquid Metal‐Based Circuit on Paper

Qin

Zhou

et al. 2018

Adv Materials Technologies

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and touch panel. [18] As people expected, [17] the processability, performance, and stability of electronic materials are basic characteristics of paper electronics which demand that paper-based circuits must have controllable scale, low resistance and high stability under deformation. Although most paper electronics are disposable, the circuits on paper will also raise environmental concern as they cannot be degraded or recycled like their substrate paper. [19] Burning is the popular method to recycle functional materials such as silver nanoparticles on paper, [1,20,21] it will be detrimental to environment and functional materials which are also difficult to be separated from the debris of paper. Therefore, an environmentally friendly method for fabricating and recycling of paper-based circuits is urgently needed. Basically, all paper electronic devices contain functional modules and circuits. The circuit with controllable scale and high folding stability is the key point on deciding the integration level of devices and electrical stability under deformation. Recently, the fabrication of flexible circuits on paper is mostly based on the connection of tiny conductors, such as metal nanoparticles, [3,7,9,18,22,23] metal nanowires, [15,24] and graphene. [16] Alternatively, conductive liquids (especially liquid metals) were expected to realize circuits with high folding stability for intrinsically combined characteristics of both high electrical conductivity and excellent fluidity. [25] Liquid metal (LM, Galinstan: 68.2 wt% Ga, 21.8 wt% In, 10 wt% Sn [26] ) exhibits favorable properties such as low melting point, [27] high electrical conductivity, [28] and low toxicity. [29] LM has been patterned on a variety of smooth substrates such as polydimethylsiloxane and polyvinyl chloride [25,26,[30][31][32][33][34][35][36][37] to function as circuits, sensors, and antennas. [25,31,32,[37][38][39] However, impeded by the porous topography of paper, it is hard to reduce the line-width of paper based LM circuits thinner than 200 µm with methods like direct writing, [40] desktop printing, [37,41] and screen printing. [42] With the LM, here the method for fabricating circuits with controllable line-width and high stability is demonstrated, and these circuits can be recycled based on the transforming mechanism between different morphologies of LM (bulk, wires, and microparticles). Bulk LM can be deformed into LM particles (LMPs) by sonication. [43] Then, LMPs can be deposited on paper which can further be selectively transformed into LM wires through mechanically sintering. [38,44] Two strategies were introduced in the mechanically sintering process to control the width of circuit (pristine circuit) by controlling the contact Paper electronics is considered very environmentally friendly, but effective recyclability of metallic circuits on paper still needs more improvement. Therefore, liquid metal (Galinstan) circuits based on the reversible conversion from particles to wires are fabricated on paper using mechanical methods, i....

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Novel Eco‐Friendly Starch Paper for Use in Flexible, Transparent, and Disposable Organic Electronics

Cited by 100 publications

References 55 publications

Organic transistors on paper: a brief review

Organic transistors on paper: a brief review

Low‐Voltage, High‐Frequency Organic Transistors and Unipolar and Complementary Ring Oscillators on Paper

Recyclable Liquid Metal‐Based Circuit on Paper

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