Article
Nanoscience & Nanotechnology
Yu Yan, Jia Cheng Li, Yu Ting Chen, Xiang Yu Wang, Gang Ri Cai, Hyeon Woo Park, Ji Hun Kim, Jin Shi Zhao, Cheol Seong Hwang
Summary: In this study, the addition of a thin stoichiometric TiO2 layer between an Al bottom electrode and a TiO1.7 layer significantly improved the electrical performance of the resistive switching memory, leading to enhanced endurance and retention. The device structure remained minimally modified and electroforming-free, exhibiting fully area-type switching characteristics. Additionally, the device showed almost linear potentiation and depression characteristics, improving the accuracy of neural networks composed of the memory cells.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Electrical & Electronic
Xiang Yuan Li, Tae Hyung Park, Seung Dam Hyun, Cheol Seong Hwang
Summary: Depositing a thin ZrO2 layer on the TiO2 layer effectively prevented the active Al electrode from absorbing oxygen, significantly improving the performance of the resistance random access memory. This led to enhancements in endurance, uniformity, and retention, making it more suitable for high-density applications.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Physics, Multidisciplinary
Asier Zabalo, Massimiliano Stengel
Summary: By utilizing first-principles theory, flexoelectricity is investigated as a potential way to overcome the difficulty in switching polarization of metallic materials, providing a means to improve experimental control over band topology.
PHYSICAL REVIEW LETTERS
(2021)
Article
Multidisciplinary Sciences
Asir Intisar Khan, Alwin Daus, Raisul Islam, Kathryn M. Neilson, Hye Ryoung Lee, H-S Philip Wong, Eric Pop
Summary: This study demonstrates a reduced switching current density and multi-level operation in flexible superlattice PCM, with excellent performance even after repeated bending and cycling, paving the way for low-power memory in flexible electronics. It also provides key insights for PCM optimization on conventional silicon substrates.
Article
Multidisciplinary Sciences
Senad Bulja, Rose Kopf, Al Tate, Mark Cappuzzo, Dmitry Kozlov, Holger Claussen, Dirk Wiegner, Wolfgang Templ, Dariush Mirshekar-Syahkal
Summary: Resistive switching (RS) of Transition Metal Oxides (TMOs) is a promising option for the development of next generation memory and 6G wireless communication technologies. The exact mechanism of RS is not yet fully understood, but it is believed to involve the formation and rupture of conductive filaments in the oxide materials. The study reveals the differences in switching behavior and resistance between amorphous TiO2 and NiO, with TiO2 showing superior high frequency characteristics. These findings are important for understanding the conduction mechanism in binary/multinary oxides and enabling their use in non-volatile memory and 6G applications.
SCIENTIFIC REPORTS
(2022)
Article
Nanoscience & Nanotechnology
Yue Wang, Minjae Kim, Akendra Singh Chabungbam, Dong-eun Kim, Qingyi Shao, Ioannis Kymissis, Hyung-Ho Park
Summary: This study prepared La2Ti2O7-x thin film by atomic layer deposition on TiN substrate, and confirmed its clockwise forming-less resistive switching behavior. The resistive switching mechanism was achieved by voltage-driven and oxygen vacancy doping-controlled Mott transition.
SCRIPTA MATERIALIA
(2023)
Article
Chemistry, Multidisciplinary
Ke-Jing Lee, Wei-Shao Lin, Li-Wen Wang, Hsin-Ni Lin, Yeong-Her Wang
Summary: This paper presents a sol-gel process-prepared SrZrTiO3 (SZT) thin film for the insulator of resistive random-access memory (RRAM). Aluminum (Al) was embedded in the SZT thin film to enhance the switching characteristics. The RRAM with embedded Al in SZT thin film showed significant improvements in device parameters compared to pure SZT thin-film RRAM.
Article
Chemistry, Multidisciplinary
Kai-Huang Chen, Chien-Min Cheng, Mei-Li Chen, Yi-Yun Pan
Summary: This study investigated the bipolar switching properties and electrical conduction behaviors of ITO thin film RRAM devices. Transparent RRAM devices with ITO thin films were deposited on ITO/glass substrates using the RF magnetron sputtering method. The experimental results showed that all transparent RRAM devices exhibited a significant memory window and low set voltage for switching cycles of 120. The electrical transport mechanisms were determined to be dominated by the ohmic contact and space charge limit conduction models for set and reset states. Furthermore, the transmittance properties of the transparent ITO/ITOX/ITO RRAM devices were found to be approximately 90% for the visible wavelength range according to UV-Vis spectrophotometer measurements.
Article
Nanoscience & Nanotechnology
Haoyang Li, Weixia Lan, Xian Wu, Zhiqiang Zhu, Bin Wei
Summary: Organic resistive switching memory (ORSM) has great potential for neotype memory devices due to its simple architecture, low power consumption, high switching speed, and feasibility of large-area fabrication. This study achieved high ON/OFF ratios and outstanding device stability by doping bipolar materials into solution-processed ternary ORSM devices. The resistive switching performance was effectively improved by doping two bipolar materials in different blending concentrations, resulting in increased ON/OFF ratios and decreased operating voltages. The use of bipolar materials enhances the operation of ORSMs through energy level alignment and charge transfer.
Article
Chemistry, Multidisciplinary
Liang Zhao, Yin-Shan Meng, Qiang Liu, Osamu Sato, Quan Shi, Hiroki Oshio, Tao Liu
Summary: The study reports a magnetic bistable material consisting of specific compounds that can undergo multiple magnetic states transitions induced by light, showing behaviors of single-chain magnets and single-molecule magnets.
Article
Polymer Science
Jonghyeon Yun, Daewon Kim
Summary: In an era of rapidly evolving artificial intelligence and 5G communications technologies, resistive random-access memory (RRAM) devices are being considered as next generation in-memory computing devices for wearable devices. This study investigates the influence of a polydopamine (PDA) layer on resistive switching in an aluminum/PDA/aluminum structure. The resistance-switching characteristics are analyzed, including the presence of an Al2O3 layer and changes in oxygen vacancies according to PDA coating time.
Article
Physics, Applied
Firman Mangasa Simanjuntak, Sridhar Chandrasekaran, Debashis Panda, Sailesh Rajasekaran, Cut Rullyani, Govindasamy Madhaiyan, Themistoklis Prodromakis, Tseung-Yuen Tseng
Summary: This study reveals that excessive unintentional out-diffused In atom into the switching layer may pose a potential threat to the switching stability of memristor devices, and suggests a facile UV/O-3 treatment to mitigate such damaging effects. It also shows that the device fabricated on the UVO-treated ITO substrate exhibits significant switching parameter improvement compared to the device manufactured on untreated ITO.
APPLIED PHYSICS LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Rongchuan Gu, Meng Xu, Yongpeng Liu, Yinghua Shen, Chong Qiao, Cai-Zhuang Wang, Kai-Ming Ho, Songyou Wang, Ming Xu, Xiangshui Miao
Summary: Si doping plays a crucial role in OVTS materials by improving thermal stability and reducing threshold voltage. This study reveals the atomic mechanisms of Si doping in OVTS materials through first-principles calculations, providing a theoretical basis for the application of Si doping in OVTS materials.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Physical
Seung Woo Han, Chul Jin Park, Moo Whan Shin
Summary: This study demonstrates that the diffusion of aluminum atoms and oxygen vacancies significantly affect the resistive switching behavior of zinc oxide-based random resistive access memory (RRAM). The diffusion of aluminum atoms into the zinc oxide layer acts as dopants, producing additional oxygen vacancies and contributing to the formation of conductive filaments. Additionally, the formation of an aluminum oxide layer by the redox reaction between aluminum atoms and oxygen leads to the instability of the reset process.
SURFACES AND INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Alexandre Silva, Ignasi Fina, Florencio Sanchez, Jose P. B. Silva, Luis Marques, Veniero Lenzi
Summary: We investigated the influence of La content on the structural and ferroelectric properties of epitaxial HfO2 films. It was found that 2-5 at. % La-doped HfO2 films exhibit optimum remanent polarization and reduced coercive field. Density functional theory calculations supported the experimental results and revealed that the polarization switching in epitaxial La:HfO2 films can be understood based on the synergetic contribution of a non-ferroelectric monoclinic phase and La doping itself.
MATERIALS TODAY PHYSICS
(2023)
Article
Chemistry, Physical
Yuan Wang, Shunli Wang, Yabiao Wu, Zinan Wang, Honghao Zhang, Zongsheng Cao, Jie He, Wei Li, Zhengchun Yang, Lingcheng Zheng, Deqiang Feng, Peng Pan, Jinlian Bi, Huayi Li, Jinshi Zhao, Kailiang Zhang
Summary: In this study, a magnetic photocatalyst alpha-Fe2O3/reduced graphene oxide (rGO) was developed to enhance photocatalytic efficiency under a magnetic field. The introduction of rGO improved the transfer of photogenerated carriers and the interface effect between alpha-Fe2O3 and rGO enhanced magnetization intensity. The alpha-Fe2O3/rGO composite photocatalyst demonstrated excellent photocatalytic performance, especially at a mass ratio of 10:1, and the magnetic field further improved the photocatalytic reaction.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Electrical & Electronic
Jinshi Zhao, Jiacheng Li, Chenyang Hao, Qiuyang Li, Wei Mi, Xiaoyong Qiang, Liwei Zhou
Summary: This study successfully deposited VO2 on glass through low pressure annealed metal vanadium thin film, demonstrating large grain sizes and a lower phase transition temperature. The VO2 films showed excellent thermochromic performance, making them suitable for thermochromic devices.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Materials Science, Ceramics
Meng Li, Wei Mi, Liwei Zhou, Jinshi Zhao, Xinrong Chen, Jinze Tang, Xinwei Li, Guang Zhang, Kailiang Zhang, Chongbiao Luan, Xingcheng Zhang, Mingsheng Xu
Summary: Beta-gallium oxide (beta-Ga2O3) thin films were prepared on a MgO (100) substrate under different oxygen flow ratios via magnetron sputtering and their crystalline quality and surface topography were studied using various analyses. The films exhibited an out-of-plane orientation with the optimal single-crystalline structure achieved under a 1% oxygen flow ratio. Excess oxygen was found to negatively impact the crystallization characteristics of the films, reducing grain size and roughness. The films demonstrated high transmittance in the visible range and exhibited a broad luminescence band at approximately 485 nm in the photoluminescence spectra.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Yupeng Xing, Kailiang Zhang, Jinshi Zhao, Zhengchun Yang, Yujie Yuan, Wei Li
Summary: The photovoltaic characteristics of monolayer MoS2/multilayer MoS2 vertical heterojunction ultrathin solar cell were calculated, and the highest efficiency of the cell could reach 16.8% under specific conditions.
Article
Engineering, Chemical
Jie He, Yuan Wang, Chaojie Shi, Mengqi Wang, Zongsheng Cao, Rui Zhang, Xingjun Sun, Jiayu Bo, Wei Li, Zhengchun Yang, Deqiang Feng, Lingcheng Zheng, Peng Pan, Huayi Li, Jinlian Bi, Jinshi Zhao, Kailiang Zhang, Yahui Cheng, Hui Liu
Summary: In this study, a ZnFe2O4/AgBr magnetic photocatalyst was constructed to simplify the structure of the Z-scheme photocatalyst and enhance its photocatalytic activity using the magnetoresistance effect and an external magnetic field. The photocurrent density of ZnFe2O4/AgBr was higher than that of pure ZnFe2O4, and showed a notable increase under a magnetic field. The magnetic field-enhanced effect also improved the photodegradation activity of ZnFe2O4/AgBr for organic pollutants.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Jiuzhou Ren, Hui Liang, Jiacheng Li, Ying Chen Li, Wei Mi, Liwei Zhou, Zhe Sun, Song Xue, Gangri Cai, Jin Shi Zhao
Summary: Researchers have demonstrated a novel polyelectrolyte-based memristor device that exhibits excellent resistive switching performance and synaptic functionality. The device offers greater flexibility and transmittance compared to oxide-based memories.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Ceramics
Chaojie Shi, Yuan Wang, Jie He, Deqiang Feng, Rui Zhang, Lingcheng Zheng, Zhengchun Yang, Huayi Li, Peng Pan, Jinshi Zhao, Kailiang Zhang, Yahui Cheng, Hui Liu
Summary: A photocatalyst based on ZnFe2O4/Ag nanocomposite particles on a 3D columnar array Si substrate was prepared. The 3D columnar array Si substrate improved the photocatalytic performance and applying a magnetic field further enhanced the photocurrent and photo-degradation efficiency.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Electrical & Electronic
Jinshi Zhao, Guojing Li, Yuxiang Cao, Wei Mi, Liwei Zhou
Summary: Excellent resistive switching performances were achieved based on Ta/MoOx/Pt device by controlling the deposition temperature and the thickness of MoOx. The deposition temperature has significant influence on the crystalline form and oxygen vacancy content of MoOx. Sputtered MoO3 at 400 degrees C obtained nanocrystals with appropriate oxygen vacancies, resulting in improved resistive switching performance.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Engineering, Electrical & Electronic
Dan-ke Chen, Mao-ze Yu, Chen-yang Hao, Wei Mi, Meng Wang, Li-wei Zhou, Jin-shi Zhao
Summary: This paper investigates the bilayer VO2/TaOx structure for controlling solar spectra in the potential application of smart windows. The study finds that the VO2 thin film and TaOx layer exhibit excellent crystallinity and surface properties, and the bilayer structure significantly enhances solar regulation efficiency while maintaining good luminous transmittance.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Jinshi Zhao, Danke Chen, Chenyang Hao, Wei Mi, Liwei Zhou
Summary: Ti surface-doped VO2 films were prepared on plain glass using rapid thermal annealing, aiming to enhance the thermochromic properties of VO2 films. The addition of Ti resulted in smaller, more uniform surface particles, leading to a lower transition temperature and a narrower hysteresis width. Additionally, the optical band gap widening led to a significant increase in luminous transmittance. This convenient surface engineering method offers a new strategy for optimizing the performance of smart windows.
Article
Materials Science, Multidisciplinary
Ruizhao Tian, Lianyue Li, Kanyu Yang, Zhengchun Yang, Hanjie Wang, Peng Pan, Jie He, Jinshi Zhao, Baozeng Zhou
Summary: An Ag/ZnO/Graphene RRAM structure was prepared through RF magnetron sputtering, showing improved endurance and resistance ratio compared to devices with Au electrode and without electroforming. The density of states of ZnO supercells and their contributions to RRAM performance were calculated and analyzed. The conduction path was confirmed through I-V curve, indicating space-charge-limited conduction of electrons captured by oxygen vacancy traps. Cell toxicity test demonstrated high biocompatibility and broad applicability of Ag/ZnO/Graphene RRAM in implantable biomedical devices.
Article
Chemistry, Physical
Jingzhou Shi, Shaohui Kang, Jiang Feng, Jiaming Fan, Song Xue, Gangri Cai, Jin Shi Zhao
Summary: Organic materials have gained attention in the field of memristor and synaptic emulation due to their credible advantages. In this study, the use of positive and negative polyelectrolytes as dielectric layers for a memristor with calcium ion (Ca2+) doping was evaluated. The device with a negative polyelectrolyte showed great potential in resistive switching performance and synapse functionality, comparable to the device with a positive polyelectrolyte. The electrical resistance transition and synaptic function were attributed to the migration of doped Ca2+ and the ionic functional groups of polyelectrolyte.
NANOSCALE HORIZONS
(2023)
Article
Engineering, Electrical & Electronic
Wei Mi, Jinze Tang, Xinrong Chen, Xinwei Li, Bingkun Li, Liyuan Luo, Liwei Zhou, Rongrong Chen, Di Wang, Jinshi Zhao
Summary: PIN-structured photodiodes were fabricated by sputtering intrinsic-Ga2O3 and n-Ga2O3 with Ti doping on p-Si substrates. The fabricated Ga2O3 films were amorphous, and the roughness increased with Ti doping concentration. The photodiodes showed high reverse breakdown voltages, significant photoelectric response to 254 nm UV light, and high responsivity at -10 V bias.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
Wentao Li, Yibo Tuo, Wei Mi, Di Wang, Meng Wang, Liwei Zhou, Jinshi Zhao
Summary: This study investigates the effect of using two different oxygen affinity TE metals, Pt and Ti, on VOX/Pt. The results show that the oxygen affinity electrode Ti significantly improves the variability and durability of the devices compared to Pt. The presence of a TiOY interfacial layer plays a vital role in resistive switching, acting as an oxygen reservoir between the Ti TE and the dielectric layer.
Article
Nanoscience & Nanotechnology
Shaohui Kang, Jingzhou Shi, Jiang Feng, Jiaming Fan, Song Xue, Gangri Cai, Jin Shi Zhao
Summary: By using organic materials as functional layers, this study enhances the memory and synapse performance of polyelectrolyte bilayer-based memristors. The device with strong polyelectrolytes showed outstanding resistive switching performance and synapse functionalities, achieving 90% performance on the artificial neural network simulation.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Laetitia Bardet, Herve Roussel, Stefano Saroglia, Masoud Akbari, David Munoz-Rojas, Carmen Jimenez, Aurore Denneulin, Daniel Bellet
Summary: The thermal instability of silver nanowires leads to increased electrical resistance in AgNW networks. Understanding the relationship between structural and electrical properties of AgNW networks is crucial for their integration as transparent electrodes in flexible optoelectronics. In situ X-ray diffraction measurements were used to study the crystallographic evolution of Ag-specific Bragg peaks during thermal ramping, revealing differences in thermal and structural transitions between bare and SnO2-coated AgNW networks.
Article
Chemistry, Multidisciplinary
Nathalia Cancino-Fuentes, Arnau Manasanch, Joana Covelo, Alex Suarez-Perez, Enrique Fernandez, Stratis Matsoukis, Christoph Guger, Xavi Illa, Anton Guimera-Brunet, Maria V. Sanchez-Vives
Summary: This study provides a comprehensive characterization of graphene-based solution-gated field-effect transistors (gSGFETs) for brain recordings, highlighting their potential clinical applications.
Article
Chemistry, Multidisciplinary
Sikandar Aftab, Hailiang Liu, Dhanasekaran Vikraman, Sajjad Hussain, Jungwon Kang, Abdullah A. Al-Kahtani
Summary: This study examines the effects of hybrid nanoparticles made of NiO@rGO and NiO@CNT on the active layers of polymer solar cells and X-ray photodetectors. The findings show that these hybrid nanoparticles can enhance the charge carrier capacities and exciton dissociation properties of the active layers. Among the tested configurations, the NiO@CNT device demonstrates superior performance in converting sunlight into electricity, and achieves the best sensitivity for X-ray detection.
Article
Chemistry, Multidisciplinary
Hyo Jung Shin, Seung Gyu Choi, Fengrui Qu, Min-Hee Yi, Choong-Hyun Lee, Sang Ryong Kim, Hyeong-Geug Kim, Jaewon Beom, Yoonyoung Yi, Do Kyung Kim, Eun-Hye Joe, Hee-Jung Song, Yonghyun Kim, Dong Woon Kim
Summary: This study investigates the role of SOX9 in reactive astrocytes following ischemic brain damage using a PLGA nanoparticle plasmid delivery system. The results demonstrate that PLGA nanoparticles can reduce ischemia-induced neurological deficits and infarct volume, providing a potential opportunity for stroke treatment.
Article
Chemistry, Multidisciplinary
Anurag Chaudhury, Koushik Debnath, Nikhil R. Jana, Jaydeep K. Basu
Summary: The study investigates the interaction between nanoparticles and cell membranes, and identifies key parameters, including charge, crowding, and membrane fluidity, that determine the adsorbed concentration and unbinding transition of nanoparticles.
Article
Chemistry, Multidisciplinary
Sina Sadeghi, Fazel Bateni, Taekhoon Kim, Dae Yong Son, Jeffrey A. Bennett, Negin Orouji, Venkat S. Punati, Christine Stark, Teagan D. Cerra, Rami Awad, Fernando Delgado-Licona, Jinge Xu, Nikolai Mukhin, Hannah Dickerson, Kristofer G. Reyes, Milad Abolhasani
Summary: In this study, an autonomous approach for the development of lead-free metal halide perovskite nanocrystals is presented, which integrates a modular microfluidic platform with machine learning-assisted synthesis modeling. This approach enables rapid and optimized synthesis of copper-based lead-free nanocrystals.
Article
Chemistry, Multidisciplinary
Zahir Abbas, Nissar Hussain, Surender Kumar, Shaikh M. Mobin
Summary: The rational construction of free-standing and flexible electrodes for electrochemical energy storage devices is an emerging research focus. In this study, a redox-active metal-organic framework (MOF) was prepared on carbon nanofibers using an in situ approach, resulting in a flexible electrode with high redox-active behavior and unique properties such as high flexibility and lightweight. The prepared electrode showed excellent cyclic retention and rate capability in supercapacitor applications. Additionally, it could be used as a freestanding electrode in flexible devices at different bending angles.
Article
Chemistry, Multidisciplinary
Lishan Zhang, Xiaoting Zhang, Hui Ran, Ze Chen, Yicheng Ye, Jiamiao Jiang, Ziwei Hu, Miral Azechi, Fei Peng, Hao Tian, Zhili Xu, Yingfeng Tu
Summary: Photodynamic therapy (PDT) is a promising local treatment modality in cancer therapy, but its therapeutic efficacy is restricted by ineffective delivery of photosensitizers and tumor hypoxia. In this study, a phototactic Chlorella-based near-infrared (NIR) driven green affording-oxygen microrobot system was developed for enhanced PDT. The system exhibited desirable phototaxis and continuous oxygen generation, leading to the inhibition of tumor growth in mice. This study demonstrates the potential of using a light-driven green affording-oxygen microrobot to enhance photodynamic therapy.
Article
Chemistry, Multidisciplinary
Yujin Li, Jing Xu, Xinqi Luo, Futing Wang, Zhong Dong, Ke-Jing Huang, Chengjie Hu, Mengyi Hou, Ren Cai
Summary: In this study, hollow heterostructured materials were constructed using an innovative template-engaged method as cathodes for zinc-ion batteries. The materials exhibited fast Zn2+ transport channels, improved electrical conductivity, and controlled volume expansion during cycling. The designed structure allowed for an admirable reversible capacity and high coulombic efficiency.
Article
Chemistry, Multidisciplinary
Paritosh Mahato, Shashi Shekhar, Rahul Yadav, Saptarshi Mukherjee
Summary: This study comprehensively elucidates the role of the core and electrostatic surface of metal nanoclusters in catalytic reduction reactions. The electrostatic surface dramatically modulates the reactivity of metal nanoclusters.
Article
Chemistry, Multidisciplinary
Pei Liu, Mengdi Liang, Zhengwei Liu, Haiyu Long, Han Cheng, Jiahe Su, Zhongbiao Tan, Xuewen He, Min Sun, Xiangqian Li, Shuai He
Summary: This study demonstrates a simple and environmentally-friendly method for the synthesis of zinc oxide nanozymes (ZnO NZs) using wasted hop extract (WHE). The WHE-ZnO NZs exhibit exceptional peroxidase-like activity and serve as effective catalysts for the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). In addition, a straightforward colorimetric technique for detecting both H2O2 and glucose was developed using the WHE-ZnO NZs as peroxidase-like catalysts.
Article
Chemistry, Multidisciplinary
Hyunkyu Oh, Young Jun Lee, Eun Ji Kim, Jinseok Park, Hee-Eun Kim, Hyunsoo Lee, Hyunjoo Lee, Bumjoon J. Kim
Summary: Mesoporous carbon particles have unique structural properties that make them suitable as support materials for catalytic applications. This study investigates the impact of channel nanostructures on the catalytic activity of porous carbon particles (PCPs) by fabricating PCPs with controlled channel exposure on the carbon surface. The results show that PCPs with highly open channel nanostructures exhibit significantly higher catalytic activity compared to those with closed channel nanostructures.
Article
Chemistry, Multidisciplinary
Yunjie Lu, Zhaohui Li, Zewei Li, Shihao Zhou, Ning Zhang, Jianming Zhang, Lu Zong
Summary: A tough, long-lasting adhesive and highly conductive nanocomposite hydrogel (PACPH) was fabricated via the synergy of interfacial entanglement and adhesion group densification. PACPH possesses excellent mechanical properties, interfacial adhesion strength, and conductivity, making it a promising material for long-term monitoring of human activities and electrocardiogram signals.
Article
Chemistry, Multidisciplinary
Zichao Wei, Audrey Vandergriff, Chung-Hao Liu, Maham Liaqat, Mu-Ping Nieh, Yu Lei, Jie He
Summary: We have developed a simple method to prepare polymer-grafted plasmonic metal nanoparticles with pH-responsive surface-enhanced Raman scattering. By using pH-responsive polymers as ligands, the aggregation of nanoparticles can be controlled, leading to enhanced SERS. The pH-responsive polymer-grafted nanoparticles show high reproducibility and sensitivity in solution, providing a novel approach for SERS without the need for sample pre-concentration.
Article
Chemistry, Multidisciplinary
Melis Ozge Alas Colak, Ahmet Gungor, Merve Buldu Akturk, Emre Erdem, Rukan Genc
Summary: This research investigates the effect of functionalizing carbon dots with hydroxyl polymers on their performance as electrode materials in a supercapacitor. The results show that the functionalized carbon dots exhibit excellent electrochemical performance and improved stability.
