Green Flexible Electronics: Natural Materials, Fabrication, and Applications

Hui, Zengyu; Zhang, Linrong; Ren, Guozhang; Sun, Gengzhi; Yu, Hai‐Dong; Huang, Wei

doi:10.1002/adma.202211202

Cited by 114 publications

(43 citation statements)

References 232 publications

(374 reference statements)

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“…With the rapid development of science and the continuous progress of electronic technology, natural plant-based materials have become very promising for the next-generation memory application as a replacement for Si-based devices. , Here, in our device, to check the long-term stability of Au/IC/ITO devices, I – V measurements were carried out with the passage of time. The observed results suggested reproducible and fairly reliable switching behavior even after 360 days from the day of device manufacture as shown in Figure b.…”

Section: Resultsmentioning

confidence: 99%

Resistive Switching Behavior Employing the Ipomoea carnea Plant for Biodegradable Rewritable Read-Only Memory Applications

Rahman

Deb

Sarkar

et al. 2023

ACS Appl. Electron. Mater.

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Development of biocompatible and biodegradable information storage could be one of the major strides toward the advancement of the next-generation eco-friendly electronics. Locally available leaves of Ipomoea carnea (IC) are employed to design a nonvolatile resistive memory device having the configuration Au/IC/ITO. The IC-based memory device is found to have back-to-back Schottky behavior. The memory device exhibits a very good ON/OFF ratio (∼102), device yield (78%), reproducibility (≈32 cycles), and good physical stability (>360 days). Upon UV irradiation, the device performance improves in terms of a higher device yield (82%) and a larger memory window (104). Space charge-limited conduction, Schottky emission (SE), and metallic filament formation were the key behind the conduction mechanism for such observed switching behavior. Atomic force microscopy measurements have also been carried out in order to visualize the conduction filament in the IC-based resistive device. Temperature-dependent investigations confirmed that the gold filament and oxygen vacancy filament play an important role in the conduction mechanism. Based on the I–V characteristics as well as the data storage nature, it has been proposed that IC-based switching devices may be utilized to design rewritable read-only memory devices. This is an improvement of conventional write-once-read-many memory.

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Section: Resultsmentioning

confidence: 99%

Resistive Switching Behavior Employing the Ipomoea carnea Plant for Biodegradable Rewritable Read-Only Memory Applications

Rahman

Deb

Sarkar

et al. 2023

ACS Appl. Electron. Mater.

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“…Therefore, the use of artificial materials that mimic natural structures has become an attractive and fashionable approach. [31] In addition to bionic structural design, nature also inspires new insights into the development of smart composites with wonderful functions. Examples include the opening movements in pinecones (Figure 2d) [32] and the self-protection behaviors of cuttlefish and 2e,f).…”

Section: Advances: Learning From Naturementioning

confidence: 99%

Advanced Phase Change Materials from Natural Perspectives: Structural Design and Functional Applications

Liu

Zhang

et al. 2023

Advanced Science

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Phase change materials have garnered extensive interest in heat harvesting and utilization owing to their high energy storage density and isothermal phase transition. Nevertheless, inherent leakage problems and low heat storage efficiencies hinder their widespread utilization. Nature has served as a great source of inspiration for addressing these challenges. Natural strategies are proposed to achieve advanced thermal energy management systems, and breakthroughs are made in recent years. This review focuses on recent advances in the structural design and functions of phase change materials from a natural perspective. By highlighting the structure-function relationship, advanced applications including human motion, medicine, and intelligent thermal management devices are discussed in detail. Finally, the views on the remaining challenges and future prospects are also provided, that is, phase change materials are advancing around the biomimicry design spiral.

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“…Although some elastomers, such as polydimethylsiloxane (PDMS), have been widely used in the design of wearable electronics, their non-degradable and non-recyclable nature have led to the fabrication of eco-friendly polymers for green electronics. [24][25][26] Several biodegradable polymers have been recognized as good candidates for green electronics, [27] including polycaprolactone (PCL), [28] polylactic acid (PLA), [29] poly(butylene succinate), [30] and biomass materials (e.g., cellulose). [31] Amongst them, PCL and PLA are popular synthetic polymers in the fields of biomaterials and shape-shifting dynamic materials.…”

Section: Introductionmentioning

confidence: 99%

Biodegradable Shape‐Memory Ionogels as Green and Adaptive Wearable Electronics Toward Physical Rehabilitation

Huang‬‬‬‬

Sun

et al. 2023

Adv Funct Materials

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Rehabilitation is necessary for the recovery of patients with paralysis caused by stroke and muscle atrophy. Wearable electronics can provide feedback on physical training and facilitate healthcare. However, most existing wearable electronics are difficult to maintain a conformal skin‐device interface. Additionally, the use of non‐degradable electronic materials is associated with environmental risks. Herein, ionogels with biodegradation and shape‐memory properties as eco‐friendly and geometry‐adaptive wearable electronics for rehabilitation are proposed. The biodegradation is enabled by incorporating polycaprolactone segments into the ionogel matrix. Moreover, the ionogel‐based wearable electronics can be conformal to certain joints by shape programming, and provide stable and reproducible real‐time signals reflecting joint movements during long‐term rehabilitation training assisted by a robotic glove, facilitating carers to assess rehabilitation efficacy and choose an appropriate scheme. This study demonstrates the potential of biodegradable shape‐memory ionogels as green and adaptive wearable electronics for robot‐assisted rehabilitation.

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Green Flexible Electronics: Natural Materials, Fabrication, and Applications

Cited by 114 publications

References 232 publications

Resistive Switching Behavior Employing the Ipomoea carnea Plant for Biodegradable Rewritable Read-Only Memory Applications

Resistive Switching Behavior Employing the Ipomoea carnea Plant for Biodegradable Rewritable Read-Only Memory Applications

Advanced Phase Change Materials from Natural Perspectives: Structural Design and Functional Applications

Biodegradable Shape‐Memory Ionogels as Green and Adaptive Wearable Electronics Toward Physical Rehabilitation

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