Nonvolatile Resistive Switching Memory Utilizing Cobalt Embedded in Gelatin

Lee, Cheng-Jung; Chang, Yu Chi; Wang, Liwen; Wang, Yeong-Her

doi:10.3390/ma11010032

Cited by 10 publications

(7 citation statements)

References 20 publications

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“…Figure e displays the O 1s core-level spectrum from XPS, which can be separated into three subpeaks by Gaussian fitting. High resolution allowed for built-up combination energies of 529.9, 530.1, and 531.2 eV, indicating the simultaneous presence of three different chemical states of oxygen on the sample surface that are associated respectively with the nonlattice oxygen, lattice oxygen, and surface hydroxyls in the oxygen-deficient regions . The high-resolution XPS spectrum of Ag 3 d 5/2 was further examined in Figure f, which revealed two individual peaks located at 367 and 373.1 eV, representing Ag + and Ag 0 , respectively.…”

Section: Resultsmentioning

confidence: 99%

Ag-Nanoparticle-Coupled UV-Responsive Gelatin Nanofiber Photodetectors

Chen

Liu

Chang

et al. 2023

ACS Appl. Nano Mater.

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In this era of environmental protection and performance, the development of organic photodetectors is booming. The hydrogel material is beginning to attract attention because of its characteristics such as plasticity and ecofriendliness. However, it is still a challenge to achieve a high-speed response in biophotodetectors. Herein, the development of an organic one-dimensional nanostructured photodetector is proposed through rotary-jet injection of gelatin fibers incorporated with silver nanoparticles (Ag NPs). The variation in the photoelectric properties of thin-film, fibrous structures with different diameters of approximately 40 μm and 400 nm has been investigated. In particular, the gelatin–Ag NPs fiber photoreceptor with a diameter of about 400 nm improved the light-to-dark current ratio by up to 28000% higher than the film structure, with rise and decay times of only 0.23 and 0.56 s. In addition, the nanostructure effectively boosts the photocurrent and suppresses the dark current because of its confining domains. The Ag NPs within the gelatin nanofibers produce localized surface plasmon resonance in the UV-illumination environment, enhancing the light absorption of the photosensitive layer, which contributes directly to the increase in the rate of excitons. The novel structure of the hybridized gelatin nanofibers incorporating silver nitrate has offered the promising potential for organic photodetectors.

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Section: Resultsmentioning

confidence: 99%

Ag-Nanoparticle-Coupled UV-Responsive Gelatin Nanofiber Photodetectors

Chen

Liu

Chang

et al. 2023

ACS Appl. Nano Mater.

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“…(c) Standard electrical characteristic curves of the gelatin-based device with the configuration of Al/CoG (concentrations of Co = 0.5, 1, and 2 M)/ITO . (d) Retention characteristics shown by the CoG (0.5, 1, and 2 M)-based RRAM devices . Reprinted with permission from ref .…”

Section: Protein-based Rram Devicesmentioning

confidence: 99%

Section: Protein-based Rram Devicesmentioning

confidence: 99%

“…The switching mechanism was deduced to be filamentary with the help of atomic force microscopy (AFM) images and a doublelogarithmic I−V curve. Cheng et al 175 made a hybrid of gelatin embedded with different mole concentrations of cobalt (Co) with a device configuration of Al/cobalt-embedded gelatin (CoG)/indium tin oxide (ITO). Co ions played a vital role in improving the memory characteristics of this device by forming an interfacial layer of aluminum oxide (AlO x ).…”

Section: Protein-based Rram Devicesmentioning

confidence: 99%

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Biomaterial-Based Nonvolatile Resistive Memory Devices toward Ecofriendliness and Biocompatibility

Rehman

Kim

et al. 2021

ACS Appl. Electron. Mater.

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Advancement in electronic industry has revolutionized the lifestyle of mankind at the cost of leaving adverse effects on the environment due to the use of toxic and nondegradable functional materials abundantly used in various electronic devices. The use of biomaterials in electronic devices with attractive properties is by far the best solution for protecting our environment from hazardous materials without compromising the growth of the electronic industry. Biomaterials are environmentally friendly and biocompatible with the added advantages of easy processing, transparency, flexibility, abundant resources, sustainability, recyclability, and simple extraction. This Review targets the characteristics, advancements, role, limitations, and prospects of using biomaterials as the functional layer of a resistive random-access memory (RRAM) device with a primary focus on the electronic properties of bio-RRAMs. Among the available memory devices, RRAMs have a huge potential to become the nonvolatile memory of the next generation owing to their simple structure, high scalability, and low power consumption. Applications of using biomaterial-based RRAMs have also been discussed including mimicking the human brain, fabricating wearable memory devices, and implanting bio-RRAMs. The motivation behind this work is to promote the use of biomaterials in electronic devices and attract researchers toward a green solution of hazardous problems associated with the electronic industry.

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“…Gelatin from animal skin has played an important role in photography, medical accessories, drug packaging, the food industry and so on. [1][2][3] Tanning leather represents the best use of animal skin, and leather products were found in Egyptian pyramids 3000 years ago. 4 Animal skin is composed of three parts, namely, the epidermis, dermis and subcutaneous tissue.…”

Section: Introductionmentioning

confidence: 99%

Research on preparation technology of animal skin intrinsic multifunctional packaging material

Zhang

Long²,

Chen

et al. 2022

Journal of Plastic Film & Sheeting

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High-end leather packaging material safe, environmentally friendly, and has a good market prospect. It is an interesting technology to solve the intrinsic functionalization of skin collagen packaging materials. Nano-Hydroxyapatite (HA) precursors solution with a specific 1.67 calcium to phosphorus ratio (Ca/P) were infiltrated into the three-dimensional collagen network matrix (3DCM) in situ growth based on goat skin pretreated with glutaraldehyde and the HAG-3DCM was obtained. After compression, a transparent film HAG-3DCM-was formed. Structural and functional characterization showed that the HAG-3DCM-CM film has good comprehensive performance, such as the tensile strength increased to 67 mPa from 28 mPa, the bending resistance increased from 5 cycles to 50 cycles and the swelling degree from 55% to 12%. HA disperses and fixes the three-dimensional collagen network matrix (3DCM) fibers, improves its stability against humidity and heat, and the thermal conductivity changed from 0.72 W/(K•m) to 0.65 W/(K•m). HAG-3DCM has a relatively high limiting oxygen index of 26.5%. This study demonstrates a new approach for preparing animal skin packaging materials with new application value.

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Nonvolatile Resistive Switching Memory Utilizing Cobalt Embedded in Gelatin

Cited by 10 publications

References 20 publications

Ag-Nanoparticle-Coupled UV-Responsive Gelatin Nanofiber Photodetectors

Ag-Nanoparticle-Coupled UV-Responsive Gelatin Nanofiber Photodetectors

Biomaterial-Based Nonvolatile Resistive Memory Devices toward Ecofriendliness and Biocompatibility

Research on preparation technology of animal skin intrinsic multifunctional packaging material

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