Article
Engineering, Electrical & Electronic
J. D. Sanchez-Vasquez, B. Portillo-Rodriguez, E. Tovar-Martinez, M. Reyes-Reyes, R. Lopez-Sandoval
Summary: Non-volatile organic memory devices were fabricated using polystyrene sulfonate (PSS) + nitrogen-doped multi-walled carbon nanotubes (NCNTs) composites on glass and PET substrates. The memory devices showed different electrical properties depending on the NCNTs concentrations in the PSS matrix and the bottom electrode material. The devices exhibited both WORM-like behavior and rewritable memory behavior, which was attributed to charge trapping/detrapping processes and the generation of oxygen vacancies (V-O) in the Al oxide layer. The presence of physical deformations (bubbles) on the top electrode was observed in devices with Al as the bottom electrode, but not in devices with ITO as the bottom electrode.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Physics, Applied
Pradeep Kumar, Davinder Kaur
Summary: This research focuses on the fabrication of multifunctional flexible electronics for wearable data storage and communication devices. The study demonstrates a resistive random access memory (RAM) constructed using a magnetoelectric heterostructure consisting of piezoelectric and ferromagnetic materials. The RAM shows excellent endurance, data retention capability, and resistance switching behavior. The researchers also investigate the influence of temperature and magnetic field on the RAM's resistance states, showcasing the device's multifunctionality.
APPLIED PHYSICS LETTERS
(2022)
Article
Chemistry, Physical
Janardhanan R. Rani, Nayan C. Das, Minjae Kim, Jae-Hyung Jang
Summary: This study investigates the resistive switching characteristics of reduced graphene oxide-phosphor composites (GPs) at low temperatures. The experiments show that the fabricated devices have reliable and reproducible performance at low temperatures, and the performance can be further improved through light illumination.
Article
Chemistry, Multidisciplinary
Abubakkar Siddik, Prabir Kumar Haldar, Tufan Paul, Ujjal Das, Arabinda Barman, Asim Roy, Pranab Kumar Sarkar
Summary: In this study, environmentally friendly and uniform CsSnCl3 perovskite films were introduced as an active layer in flexible memristors, demonstrating excellent electrical properties. The mechanism of resistive switching involving the formation and rupture of Ag filaments in the CsSnCl3 layer was well explained, confirming the metallic nature of the conducting filament through temperature-dependent variations. Various pulse measurements were conducted to mimic basic synaptic functions, providing an opportunity for the development of next-generation flexible electronics based on lead-free halide perovskites.
Article
Engineering, Electrical & Electronic
S. Maji, A. D. Paul, P. Das, S. Chatterjee, P. Chatterjee, V. R. Dhanak, A. K. Chakraborty, R. Mahapatra
Summary: This study demonstrates a ReRAM device fabricated on a flexible PET substrate using a bilayer of GO and HfOx films, showing good switching behavior and improved parameter uniformity. The switching mechanism involves the formation/rupture of a conductive filament through the migration-induced oxidation/reduction reaction of oxygen vacancies at the GO/HfOx interface.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Physics, Applied
Dongseok Kwon, Hyeongsu Kim, Kyu-Ho Lee, Joon Hwang, Wonjun Shin, Jong-Ho Bae, Sung Yun Woo, Jong-Ho Lee
Summary: This work proposes positive feedback (PF) device-based synaptic devices for reliable binary neural networks (BNNs). The fabricated PF device shows a high on/off current ratio (2.69 x 10(7)) due to PF operation. The PF device has a charge-trap layer for adjusting the turn-on voltage (V-on) through program/erase operations and implementing long-term memory function. The steep switching characteristics of the PF device provide tolerance to retention time and turn-on voltage variation, enabling high accuracy (88.44% for CIFAR-10 image classification) in hardware-based BNNs using PF devices as synapses.
APPLIED PHYSICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
P. R. Sekhar Reddy, Venkata Raveendra Nallagatla, Yedluri Anil Kumar, G. Murali
Summary: This study investigates the resistive switching behavior of HfAlOx/ZrO2 thin films. The Au/HfAlOx/ZrO2/TiN stack shows superior performance compared to the Au/HfAlOx/TiN memory stack. Both stacks demonstrate good retention and endurance characteristics.
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
(2022)
Article
Engineering, Electrical & Electronic
Chih-Ying Chen, Yu-Hsiu Feng, Hong-Lin Lu, Feng-En Chang, Jui-Yuan Chen
Summary: In this study, an integrated structure called one phase-change memory one resistive random access memory (1P1R) was proposed to suppress the sneak current during stacking. The 1P1R device remained in a high resistance state to suppress the sneak current, and switched to a working state to write/read its state. The feasibility of the 1P1R structure was confirmed through electrical measurement, and the property analysis provided insight into its speculated mechanism. The results demonstrated that the novel 1P1R structure could effectively suppress sneak current, showing potential for 3D IC manufacturing.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Lu Wang, Yukai Zhang, Peng Zhang, Dianzhong Wen
Summary: This paper presents the fabrication of a physically transient resistive random-access memory (RRAM) device using a composite material of egg protein and graphene quantum dots. The device exhibits good memory characteristics and biodegradability, making it a promising candidate for transient electronic systems.
Article
Materials Science, Multidisciplinary
Songcheng Hu, Zhenhua Tang, Li Zhang, Dijie Yao, Zhigang Liu, Siming Zeng, Xiaobin Guo, Yanping Jiang, Xin-Gui Tang, Lin Ma, Zhaogang Nie, Ju Gao
Summary: This study prepared double perovskite oxide Bi2FeCrO6 (BFCO) thin films using the sol-gel method and investigated their structural, optical, and electrical properties. It was found that light could induce optical modulation conversion of RS behavior and a negative differential resistance (NDR) effect in Au/BFCO/FTO devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Chemistry, Physical
Gergely Tarsoly, Jae-Yun Lee, Fei Shan, Sung-Jin Kim
Summary: This paper presents a resistive memory based on TiO2 and a-IGZO thin films with optimized annealing temperature. The study proposes a memory mechanism and demonstrates low voltage operation, good retention stability, and endurance stability of the device.
APPLIED SURFACE SCIENCE
(2022)
Review
Chemistry, Multidisciplinary
Chang Ma, Ming-Guo Ma, Chuanling Si, Xing-Xiang Ji, Pengbo Wan
Summary: Flexible and wearable devices have great potential in portable mobile electronics and human motion monitoring. MXene, a novel 2D nanomaterial, shows superior properties that make it a promising candidate for flexible and wearable devices. Current research is focused on developing flexible MXene-based composites with various functions and structures, particularly in applications like sensors, supercapacitors, and electromagnetic interference shielding materials.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Review
Materials Science, Multidisciplinary
Rajwali Khan, Nasir Ilyas, Mohammed Zubair M. Shamim, Mohammed Ilyas Khan, Mohammad Sohail, Nasir Rahman, Abid Ali Khan, Saima Naz Khan, Aurangzeb Khan
Summary: This review provides a summary of contemporary understanding of nanoscale RRAM devices, discussing their classification based on current-voltage behavior and resistive switching features. It also explains the impact of resistive switching effects with experimental parameters and the ability of RRAM to be integrated into advanced semiconductor circuits with interface changes.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Computer Science, Hardware & Architecture
Soyed Tuhin Ahmed, Michael Hefenbrock, Christopher Muench, Mehdi B. Tahoori
Summary: In this work, an approximate scrubbing technique is proposed for NVM-based neuromorphic fabric to mitigate unidirectional retention faults and improve the inference accuracy of MLP and CNN with negligible storage overhead.
IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS
(2023)
Article
Materials Science, Multidisciplinary
Joong Hyeon Park, Sobia Ali Khan, Mehr Khalid Rahmani, Jihwan Cho, Moon Hee Kang
Summary: We fabricated organic RRAM devices using a low-cost solution-process method and enhanced their performance by simple UVO treatment. The devices exhibited bipolar resistive switching behavior with high ON/OFF ratio and endurance. The conduction mechanisms of the devices were investigated and Schottky emission and Ohmic conduction were identified as the main mechanisms.
MATERIALS RESEARCH EXPRESS
(2022)
Article
Nanoscience & Nanotechnology
Peng Zhang, Benhua Xu, Cunxu Gao, Guilin Chen, Meizhen Gao
ACS APPLIED MATERIALS & INTERFACES
(2016)
Article
Chemistry, Multidisciplinary
Peng Zhang, Cunxu Gao, Benhua Xu, Lin Qi, Changjun Jiang, Meizhen Gao, Desheng Xue
Article
Electrochemistry
Peng Zhang, Benhua Xu, Guilin Chen, Cunxu Gao, Meizhen Gao
ELECTROCHIMICA ACTA
(2018)
Article
Physics, Applied
Peng Zhang, Cunxu Gao, Fengzhen Lv, Yanping Wei, Chunhui Dong, Chenglong Jia, Qingfang Liu, Desheng Xue
APPLIED PHYSICS LETTERS
(2014)
Article
Chemistry, Multidisciplinary
Benhua Xu, Zhiqi Zhang, Peng Zhang, Li Wang, Rui Yuan, Zhenghua Ju, Weisheng Liu
Article
Materials Science, Multidisciplinary
Mengjiao Dong, Liyun Liao, Chensheng Li, Yingxiao Mu, Yanping Huo, Zhong-Min Su, Fushun Liang
Summary: This study investigates the influence of the polarity of polymer matrices on persistent room-temperature phosphorescence (pRTP). It is discovered that intense phosphorescence emission can be achieved in highly polar matrices such as polyacrylic acid (PAA). The dipole-dipole interaction between the polar fluorophore and polar matrix is proposed to stabilize the excited state and facilitate the generation of efficient room-temperature phosphorescence emissions.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Han-Jiang Yang, Weijia Xiang, Xiangzhou Zhang, Jin-Yun Wang, Liang-Jin Xu, Zhong-Ning Chen
Summary: This article reports a 2D copper(I)-based cluster material for X-ray imaging, which exhibits ultra-high spatial resolution, high photoluminescence efficiency, and low detection limit. The material shows excellent linear response to X-ray dose rates and light output, and has the best spatial resolution among reported lead-free metal halide hybrids.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Review
Materials Science, Multidisciplinary
Taek Joon Kim, Sang-hun Lee, Dayeong Kwon, Jinsoo Joo
Summary: Donor-acceptor heterostructures using organic-inorganic halide perovskites, two-dimensional transition metal dichalcogenides, pi-conjugated organic small/macro molecules, and quantum dots are promising platforms for exciton-based photonics and optoelectronics. Hetero-interlayer excitons and hetero-intermolecular excitons formed through optical and/or electrical charge transfer in various heterostructures are important quasi-particles for light emission, detection, and harvesting systems.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Liemao Cao, Xiaohui Deng, Zhen-kun Tang, Rui Tan, Yee Sin Ang
Summary: We investigate the interface properties between WSi2N4 and Mo2B, O-modified Mo2B, and OH-modified Mo2B nanosheets. We find that WSi2N4 and Mo2B form n-type Schottky contacts, while functionalizing Mo2B with O and OH leads to the formation of both n-type and p-type ohmic contacts with WSi2N4. Additionally, we demonstrate the emergence of quasi-ohmic contact with ultralow lateral Schottky barrier and zero vertical interfacial tunneling barriers in Mo2B(OH)2-contacted WSi2N4.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Ga Eun Kim, Hae-Jin Kim, Heesuk Jung, Minwoo Park
Summary: This study presents a solution to the commercialization challenges of flexible LEDs based on MAPbBr(3) by incorporating polyurethane and an In-Ga-Zn-Sn liquid alloy. The designed devices showed high flexibility, efficiency, and durability, with improved electron injection and reduced defects, making them promising for next-generation displays.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Tao Shen, Zeng Wu, Zhen Jiang, Dongsheng Yan, Yan Zhao, Yang Wang, Yunqi Liu
Summary: Sidechain engineering is an important molecular design strategy for tuning the solid-state packing and structural ordering of conjugated polymers. The effects of sidechain direction on the optoelectronic properties of polymers and device performance were systematically investigated in this study. The results demonstrate that tuning the sidechain substitution direction can effectively improve the molecular structure and light absorption properties of polymers, providing new insights for the rational design of functional polymers.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Lotte Clinckemalie, Bapi Pradhan, Roel Vanden Brande, Heng Zhang, Jonathan Vandenwijngaerden, Rafikul Ali Saha, Giacomo Romolini, Li Sun, Dirk Vandenbroucke, Mischa Bonn, Hai I. Wang, Elke Debroye
Summary: In this study, a facile strategy using a non-conductive polymer was proposed to fabricate stable, pinhole-free thick films. The effect of introducing a second phase into CsPbBr3 perovskite crystals on their photophysical properties and charge transport was investigated. The dual phase devices exhibited improved stability and more effective operation at higher voltages in X-ray detection.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Jingye Zou, Shenglan Hao, Pascale Gemeiner, Nicolas Guiblin, Omar Ibder, Brahim Dkhil, Charles Paillard
Summary: When rare-earth ions are embedded in a ferroelectric material, their photoluminescence can serve as an all-optical probe for temperature, electric field, and mechanical stimulus. However, the impact of ferroelectric phase transitions on photoluminescence is not well understood. In this study, we demonstrate changes in the photoluminescence of green emission bands during critical ferroelectric transitions in an Er-doped BaTiO3 material. We also find that the intensity ratio and wavelength position difference of sub-peaks provide information on the phase transitions.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Jiangchao Han, Daming Zhou, Wei Yang, Chen Lv, Xinhe Wang, Guodong Wei, Weisheng Zhao, Xiaoyang Lin, Shengbo Sang
Summary: Rare type-II spin-gapless semiconductors (SGSs) have attracted increasing attention due to their unique spin properties. In this study, the interface contacts and spin transport properties of different devices composed of VSi2P4 ferromagnetic layers were investigated. The results show that VSi2P4 is a promising material for designing vertical van der Waals heterostructures with a giant tunnel magnetoresistance (TMR) in spintronic applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Tianqi Zhao, Renagul Abdurahman, Qianting Yang, Ruxiangul Aiwaili, Xue-Bo Yin
Summary: In this study, we designed and prepared Cr and Ba-doped gamma-Ga2O3 nanoparticles to achieve near-infrared emission and enhance the emission intensity. The emission mechanism was proposed based on the trap depth, band gap, and energy levels of Cr ions. The ratiometric temperature sensing and encryption information transfer demonstrated the potential applications of this technology.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Shuvankar Gupta, Jyotirmoy Sau, Manoranjan Kumar, Chandan Mazumdar
Summary: In this study, a new spin-gapless semiconductor material CoFeMnSn is reported, and its stable structure and spin-polarized band structure are determined through experimental realization and theoretical calculations. The compound exhibits a high ferromagnetic transition temperature, making it excellent for room temperature applications. The nearly temperature-independent resistivity, conductivity, and carrier concentration of the compound, adherence to the Slater-Pauling rule, and the high intrinsic anomalous Hall conductivity achieved through hole doping further confirm its spin-gapless semiconductor nature. Additionally, the compound's SGS and topological properties make it suitable for spintronics and magneto-electronics devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Ikumi Aratani, Yoji Horii, Yoshinori Kotani, Hitoshi Osawa, Hajime Tanida, Toshiaki Ina, Takeshi Watanabe, Yohko F. Yano, Akane Mizoguchi, Daisuke Takajo, Takashi Kajiwara
Summary: In this study, two-dimensional arrays of single-molecule magnets (SMMs) based on metal-organic frameworks (MOFs) were systematically modified through Langmuir-Blodgett methods and chemical modifications. The introduction of bulky alkoxide groups induced structural changes and perpendicular magnetic anisotropy. This research provides a promising strategy for the construction of high-density magnetic memory devices using molecular spintronics.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Zonghao Lei, Houhe Dong, Lijie Sun, Bing Teng, Yanfei Zou, Degao Zhong
Summary: Researchers have successfully developed four different up-conversion phosphors based on the Eulytite-type host Ba3Yb(PO4)(3). The optical temperature sensing properties of these phosphors were thoroughly investigated, and it was found that Ba3Yb(PO4)(3):Tm/Er/Ho showed potential for optical temperature measurement applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
C. Roncero-Barrero, M. A. Carvajal, J. Ribas-Arino, I. de P. R. Moreira, M. Deumal
Summary: This study computationally investigates the conductivity of four isostructural compounds with different Se contents, and reveals the parameters that define their conductivity in stable organic radical materials. The results provide insights into the influence of Se content on the conductivity and highlight the importance of considering multiple parameters in understanding the trends in conductivity.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Remi Arras, Kedar Sharma, Lionel Calmels
Summary: In this study, we investigated the interplay between structural defects in NiFe2O4, showing that the complex formed by a Ni-Oh/Fe-Td-cation swap and a neutral oxygen vacancy is more stable than these two isolated defects, and significantly reduces the width of the minority-spin band gap.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)