Article
Engineering, Electrical & Electronic
Regina Burganova, Antonella Parisini, Salvatore Vantaggio, Roman Sajapin, Tatiana Berzina
Summary: In this research, the kinetic behavior of a two-terminal organic memristive device based on polyaniline/solid polyelectrolyte heterojunction was investigated with varying doping levels of a solid polyelectrolyte. It was found that reducing the dopant salt concentration in the solid polyelectrolyte can significantly increase the response time of the memristive device.
MICROELECTRONIC ENGINEERING
(2021)
Article
Mathematics, Interdisciplinary Applications
Yuriy Gerasimov, Evgenii Zykov, Nikita Prudnikov, Max Talanov, Alexander Toschev, Victor Erokhin
Summary: This paper is dedicated to the experimental study of learning properties of systems, based on polyaniline (PANI) memristive devices. The study demonstrates the impact of signals with different forms, amplitudes, and frequencies on memristive device conductance, with pulse width modulation appearing as the most adequate method for implementing neuromorphic circuits.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Mathematics, Interdisciplinary Applications
A. N. Mikhaylov, D. Guseinov, A. Belov, D. S. Korolev, V. A. Shishmakova, M. N. Koryazhkina, D. O. Filatov, O. N. Gorshkov, D. Maldonado, F. J. Alonso, J. B. Roldan, A. Krichigin, N. Agudov, A. A. Dubkov, A. Carollo, B. Spagnolo
Summary: Through experimental and theoretical studies, it has been found that adding white noise can enhance resistive switching and memristance response in a specific metal-oxide memristive device, triggering the stochastic resonance phenomenon. This suggests that noise and fluctuations can play a constructive role in nonlinear memristive systems far from equilibrium.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Chemistry, Multidisciplinary
Wonkyu Kang, Kyoungmin Woo, Hyon Bin Na, Chi Jung Kang, Tae-Sik Yoon, Kyung Min Kim, Hyun Ho Lee
Summary: By synthesizing and layering square or rectangular nanoparticles of lanthanum oxide (LaOx), an analog memristive device with simultaneous diode property was demonstrated in this study. The resistive switching behavior of the LaOx NPs device showed evolved current levels with memristive characteristics and additional rectification functionality. The concurrent memristor and diode type selector characteristics were examined using electrical stimuli or pulses, showing potential for neuromorphic synaptic device applications.
Article
Engineering, Electrical & Electronic
Roman Sajapin, Davide Vurro, Pasquale D'Angelo, Giuseppe Tarabella, Simone L. Marasso, Matteo Cocuzza, Maddalena Botti, Mirko Buttrini, Adriana Calderaro, Tatiana Berzina, Salvatore Iannotta
Summary: This study presents a chitosan:polyaniline-based ink for the manufacturing of the first organic memristive device with an aerosol jet printed conductive channel. The ink is eco-biofriendly and suitable for emulating neuro-morphic functions in bioelectronics. The study demonstrates the potential of aerosol jet printing technology in flexible organic electronic devices.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Tukaram D. Dongale, Atul C. Khot, Ashkan Takaloo, Kyung Rock Son, Tae Geun Kim
Summary: In this study, nanoparticulated cobaltite oxide was used to demonstrate multilevel resistive switching and synaptic learning capabilities, showing potential for non-volatile memory and neuromorphic computing applications. The device exhibited tunable resistive switching properties and different resistance states, with less variation in measurements based on compliance current. The study also explored basic and complex synaptic plasticity properties, mimicking various learning rules such as Hebbian and anti-Hebbian rules. The results suggest that cobaltite oxide is an excellent nanomaterial for both multilevel resistive switching and neuromorphic computing applications.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Hong An, Yang Chen, Yong Wang, Xiaohua Liu, Yongheng Ren, Ziliang Kang, Jinping Li, Libo Li
Summary: Atmospheric water harvesting using solar-driven desorption systems is an effective solution to water shortage in arid regions. A hygroscopic salt-modified metal-organic framework (CaCl2@MOF-808-11.8) is developed, which exhibits excellent water uptake and improved structural stability and cyclic performance. An outdoor water harvesting experiment using a solar-driven device shows that CaCl2@MOF-808-11.8 can collect 1.8 kg of water per each kilogram of material daily, surpassing most reported water harvesting MOFs.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Polymer Science
Jin Han, Yiping Feng, Zhixiong Liu, Qinyue Chen, Yupeng Shen, Feng Feng, Lizhen Liu, Mingqiang Zhong, Yue Zhai, Michael Bockstaller, Zhengping Zhao
Summary: A method for fabricating efficient antibacterial and degradable nanocomposite hydrogels was developed by integrating graphene oxide (GO) sheets into a quaternary ammonium salt (QAS) based hydrogel matrix. The nanocomposite hydrogels exhibited strong NIR absorption at 808 nm and demonstrated efficient photothermal energy absorption, leading to increased bacteria-killing efficiency towards E. coli and S. aureus.
Article
Nanoscience & Nanotechnology
Anouk S. S. Goossens, Majid Ahmadi, Divyanshu Gupta, Ishitro Bhaduri, Bart J. J. Kooi, Tamalika Banerjee
Summary: This study presents a compelling alternative memristive device that shows enhanced memristive memory window and maintained analog behavior through areal downscaling. By directly integrating the device designs on semiconducting Nb-doped SrTiO3, the electric field effects at edges are leveraged to increase the dynamic range in smaller devices. The findings also reveal the influence of applied electric fields on the physical extent of an interfacial layer, as observed through scanning transmission electron microscopy.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Shin-Yi Min, Won-Ju Cho
Summary: The study evaluated the memristive switching characteristics of a biomaterial solid polymer electrolyte (SPE) chitosan-based memristor and confirmed its artificial synaptic behavior with analog switching. The fabricated Ti/SPE-chitosan/Pt-structured memristor showed stable bipolar resistive switching behavior and multilevel per cell (MLC) characteristics. Adjusting the set compliance current (I-cc) allowed for continuous analog resistance switching, demonstrating the capability of chitosan-based SPE artificial synapses to emulate short- and long-term plasticity of biological synapses.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Chemistry, Physical
Lai Wei, Xin Xu, Sen Jiang, Kang Xi, Linghao Zhang, Yuelang Lan, Junying Yin, Haihua Wu, Yunfang Gao
Summary: A multifunctional composite solid polymer electrolyte (CSPE) based on polyethylene oxide (PEO) embedded with zeolitic imidazolate framework-8 deposited on carboxymethyl cellulose (ZIF@CMC) is reported, which demonstrates brilliant electrochemical properties including high ionic conductivity and wide electrochemical window.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Shahryar Hosseini, Niloofar Eslahi, Reza Jahanmardi
Summary: The aim of this research was to prepare self-healing injectable nanocomposite hydrogels based on benzaldehyde-modified polyethylene glycol and chitosan, reinforced with graphene oxide (GO), for the delivery of pomegranate extract (PG) in hard tissue engineering. The incorporation of GO into the hydrogels improved the pore structure, elastic properties, compressive strength, and antibacterial properties. The designed system shows promising potential as a delivery platform for pharmaceuticals in hard tissue engineering.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Silvia Battistoni, Matteo Cocuzza, Simone Luigi Marasso, Alessio Verna, Victor Erokhin
Summary: Organic memristive devices (OMDs) have a narrow switching window and implement neuromorphic characteristics at voltages <= 1 V, making them suitable for brain-like energy efficiency. Despite their potential in bioinspired electronics, guidelines for the design of devices and materials are still missing.
ADVANCED ELECTRONIC MATERIALS
(2021)
Article
Polymer Science
Shakir Ullah, Huaming Wang, Guohua Hang, Tao Zhang, Lei Li, Sixun Zheng
Summary: In this study, we synthesized a solid polymer electrolyte composed of poly(thiourethane-co-ethylene oxide) and lithium bis(trifluorosulfonyl)imide. The electrolyte network was reinforced by crosslinking with disulfide bonds and octavinyl POSS. The incorporation of POSS increased the crosslinking density and effectively suppressed the crystallization of PEO. By adjusting the molar ratio of ethylene oxide to LiTFSI and the percentage of POSS, the ionic conductivity of the electrolyte reached 2.1 x 10-5 S x cm-1 at 300 K. Furthermore, the electrolyte can be reprocessed through the dynamic exchange of disulfide bonds.
Article
Chemistry, Multidisciplinary
Laiqiang Xu, Jiayang Li, Lin Li, Zheng Luo, Yinger Xiang, Weina Deng, Guoqiang Zou, Hongshuai Hou, Xiaobo Ji
Summary: The study introduces the design of using carbon dots as fillers to enhance the ionic conductivity and lithium ion migration ability of solid composite electrolytes, leading to long cycling life and excellent performance of all-solid-state batteries.
Article
Materials Science, Multidisciplinary
Jinfei Dai, Chenjing Zhao, Jie Xu, Hossein Roshan, Hua Dong, Francesco Di Stasio, Fang Yuan, Bo Jiao, Zhaoxin Wu
Summary: In this study, the performance of perovskite nanocrystal light emitting diodes (PNC-LEDs) was enhanced through rational device structure design and the application of high-performance perovskite nanocrystal emitting layers.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Jia-Hua Yeh, Suhendro Purbo Prakoso, Leon Lukhas Santoso, Shi-Ju Chen, Bryan Chiang, Ju-Chieh Cheng, Ru-Ning Zhang, Yu-Cheng Chiu
Summary: This study demonstrates the application of a renewable material called dextrin-SMS in the production of electret filters and transistor memory. Dextrin-SMS material can maintain prolonged electrostatic charges and has a relatively wide memory window, making it suitable for the production of biodegradable face masks and green electronics.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Ahmad Telfah, Qais M. Al-Bataineh, Ahmad A. Ahmad, Rund Abu-Zurayk, Carlos J. Tavares, Johannes Etzkorn, Farzad Foadian
Summary: Polyacrylic acid complexed with polyaniline (PAA/PANI) composite materials have the potential to form organic mixed ion-electron conductive (OMIEC) films, which can be used in optoelectronic and energy storage applications. The composite films are formed through an acid-base reaction, resulting in strong electrostatic interactions and intermolecular hydrogen bonds between PANI and PAA. The separation of PANI-rich domains from PAA-rich matrix in the composite films is observed. The electrical conductivity of the composite films is higher when the content of PANI is 33 wt%, due to the high ionic-electronic coupling at the interface between phase-separated regions.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Min-Chih Hou, Dian Luo, Yu-Ting Huang, Shun-Wei Liu, Chin-Wei Lu, Chih-Hao Chang, Hai-Ching Su
Summary: Light-emitting electrochemical cells (LECs) have great potential for novel emission applications, but their relatively low device efficiency hinders their competitiveness with other emission technologies. A study finds that increasing the concentration of small TiO2 nano-particles in the diffuser film can enhance light extraction and improve the device efficiency of LECs.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Qiaoli Niu, Yao Xu, Jun Yang, Wei Hua, Baoxiang Chai, Zequan Zhang, Yuhui Ma, Wenjin Zeng, Ana Flavia Nogueira, Ruidong Xia
Summary: By introducing CPB as a defect passivation agent in the perovskite precursor solution, the optoelectronic properties of perovskite films can be significantly improved and non-radiative carrier recombination can be effectively suppressed. CPB-modified perovskite solar cells exhibit lower trap-state density and stronger carrier migration capability, leading to enhanced power conversion efficiency and stability.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Hulya Ozturk Dogan, Fatma Yildirim, Zeynep Orhan, Ali Ben Ahmed, Mostefa Benhaliliba, Sakir Aydogan
Summary: In this study, efficient self-powered visible and UV photodetectors based on hybrid organic-inorganic materials were demonstrated. The photodetectors showed excellent UV detecting capability and good photoresponsivity.
ORGANIC ELECTRONICS
(2024)