Tattoo‐Paper Transfer as a Versatile Platform for All‐Printed Organic Edible Electronics

Bonacchini, Giorgio E.; Bossio, Caterina; Greco, Francesco; Mattoli, Virgilio; Kim, Yun‐Hi; Lanzani, Guglielmo; Caironi, Mario

doi:10.1002/adma.201706091

Cited by 95 publications

(127 citation statements)

References 41 publications

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“…[1][2][3][4][5] Such vision has begun to show concrete potential through a variety of proofof-concept demonstrations, among which are programmable logic circuitry for flexible displays, [6] transferrable electronics for pharmaceutics, [7] healthcare sensors for brainwave detection [8] or pulse oximetry, [9] fully printed washable electronics on fabrics, [10] and imperceptible logic circuitry on ultrathin substrates for intelligent electronic skin. This promise stemmed from the prospect of utilizing printing tools derived from well-established graphical arts technologies to deposit a variety of functional materials, which exhibit a suitable combination of mechanical and electronic properties.…”

Section: Introductionmentioning

confidence: 99%

Accessing MHz Operation at 2 V with Field‐Effect Transistors Based on Printed Polymers on Plastic

Perinot

Caironi

2018

Advanced Science

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Organic printed electronics are suitable for the development of wearable, lightweight, distributed applications in combination with cost‐effective production processes. Nonetheless, some necessary features for several envisioned disruptive mass‐produced products are still lacking: among these radio‐frequency (RF) communication capability, which requires high operational speed combined with low supply voltage in electronic devices processed on cheap plastic foils. Here, it is demonstrated that high‐frequency, low‐voltage, polymer field‐effect transistors can be fabricated on plastic with the sole use of a combination of scalable printing and digital laser‐based techniques. These devices reach an operational frequency in excess of 1 MHz at the challengingly low bias voltage of 2 V, and exceed 14 MHz operation at 7 V. In addition, when integrated into a rectifying circuit, they can provide a DC voltage at an input frequency of 13.56 MHz, opening the way for the implementation of RF devices and tags with cost‐effective production processes.

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Section: Introductionmentioning

confidence: 99%

Accessing MHz Operation at 2 V with Field‐Effect Transistors Based on Printed Polymers on Plastic

Perinot

Caironi

2018

Advanced Science

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“…[61][62][63][64][65][66][67] Figure 4a shows a photograph of the as-prepared P3HT film transferred to vertical AuNWs/PDMS electrodes. To investigate the charge injection between our electrodes and p-type organic semiconductors, we integrated P3HT thin films with the AuNWs/PDMS electrodes to form metal-organic semiconductor contacts.…”

mentioning

confidence: 99%

Patterning Vertically Grown Gold Nanowire Electrodes for Intrinsically Stretchable Organic Transistors

Zhu

Gong

Lin

et al. 2018

Adv Elect Materials

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facile fabrication. [15][16][17][18] Metal nanowires (gold, silver, copper, etc.) [19][20][21][22][23][24] and carbon based materials such as carbon nanotubes (CNTs) and graphene, [25][26][27][28][29][30][31] have received tremendous research attention in constructing intrinsically stretchable electrodes for organic electronics.Among those choices, raw materials cost of gold may not be the lowest, but it offers superior advantages in biomedical applications of wearable and implantable electronics, due to the attributes including high conductivity, mechanical robustness, chemical inertness, and biocompatibility. [32][33][34] For example, the conductivity of gold is two orders higher than carbon based materials. [35] Also, gold has been known to be anti-oxidative and anti-corrosive, while silver or copper fails in maintaining a long-term stability in complex body fluidic environments. Furthermore, the work function of gold is close to the HOMO levels of many p-type organic semiconductors such as poly(3-hexylthiophene) (P3HT) and pentacene, offering small hole-injection barriers and low contact resistance at metal-organic semiconductor interfaces. [36][37][38][39][40] Although little research attention had been paid to improving contact resistance in stretchable organic transistors because the state-of-the-art device performance is mostly hindered by channel resistance, advances in high mobility organic semiconductors will make contact resistance increasingly crucial in determining device performance, rendering gold materials more favorable in stretchable organic electronics. [41][42][43][44][45][46] Nevertheless, gold nanomaterials based electrodes have hitherto yet been well developed for intrinsically stretchable transistors. 2D gold nanosheets have been assembled to stretchable electrodes for P3HT fiber based stretchable organic transistors with good mechanical and electrical performance. [47][48][49] However, 2D gold nanosheets, fabricated at relatively high temperature (95 °C), are rigid in nature and the fabrication process is incompatible to the patterning processes via conventional photo lithography, and hence may limit device density, mechanical robustness, and scalability. [15] 1D gold nanowires (AuNWs) have emerged as an excellent materials candidate for serving as electrodes in stretchable electronics because of their mechanical flexibility, ease of fabrication, and Advances in large-area organic electronics for sensor arrays and electronic skins demand highly stretchable, patternable, and conformal electrodes to minimize contact resistance when sensing devices are mechanically deformed. Gold is an excellent electrode material with work function matching well with p-type organic transistors. However, it is non-trivial to fabricate highly stretchable gold electrodes for stretchable organic electronics. Here, by combining the advantages of both top-down patterning and bottomup synthesis, a new materials platform of patterned vertically grown gold nanowires (AuNWs) for constructing intrinsically stretcha...

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“…Tr ansfer printing is ascalable approach to the manufacturing of flexible electronic devices for many applications including ingestible electromechanical systems.O rganic semiconductors can be deposited on tattoo-paper and transfer printed to various substrates including foods and capsules ( Figure 5). [43] This process is amenable to various p-and n-type semiconducting polymers.T he performance of tattooed printed organic field-effect transistors,w hile modest, is comparable before and after transfer printing. Transfer printing is also amenable for integrating silicon-based electronics with flexible substrates including those used as ingestible capsules.…”

Section: Materials and Methods For Heterogeneous Integrationmentioning

confidence: 99%

Advances in Materials and Structures for Ingestible Electromechanical Medical Devices

Bettinger

2018

Angew Chem Int Ed

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Ingestible biomedical devices that diagnose, prevent, or treat diseases has been a dream of engineers and clinicians for decades. The increasing apparent importance of gut health on overall well-being and the prevalence of many gastrointestinal diseases have renewed focus on this emerging class of medical devices. Several prominent examples of commercially successful ingestible medical devices exist. However, many technical challenges remain before ingestible medical devices can achieve their full clinical potential. This Minireview summarizes recent discoveries in this interdisciplinary topic including novel materials, advanced materials processing techniques, and select examples of integrated ingestible electromechanical systems. After a brief historical perspective, these topics will be reviewed with a dedicated focus on advanced functional materials and fabrication strategies in the context of clinical translation and potential regulatory considerations. Future perspectives, challenges, and opportunities related to ingestible medical devices will also be summarized.

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Tattoo‐Paper Transfer as a Versatile Platform for All‐Printed Organic Edible Electronics

Cited by 95 publications

References 41 publications

Accessing MHz Operation at 2 V with Field‐Effect Transistors Based on Printed Polymers on Plastic

Accessing MHz Operation at 2 V with Field‐Effect Transistors Based on Printed Polymers on Plastic

Patterning Vertically Grown Gold Nanowire Electrodes for Intrinsically Stretchable Organic Transistors

Advances in Materials and Structures for Ingestible Electromechanical Medical Devices

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