Materials Horizons最新文献_第10页

A polar-switchable and controllable negative phototransistor for information encryption 一种极性可切换和可控的负光电晶体管，用于信息加密。

IF 13.3 2区材料科学

Materials Horizons Pub Date : 2023-08-30 DOI: 10.1039/D3MH01120H

Aiping Cao, Shubing Li, Hongli Chen, Menghan Deng, Xionghu Xu, Liyan Shang, Yawei Li, Anyang Cui and Zhigao Hu

{"title":"A polar-switchable and controllable negative phototransistor for information encryption","authors":"Aiping Cao, Shubing Li, Hongli Chen, Menghan Deng, Xionghu Xu, Liyan Shang, Yawei Li, Anyang Cui and Zhigao Hu","doi":"10.1039/D3MH01120H","DOIUrl":"10.1039/D3MH01120H","url":null,"abstract":"Anomalous negative phototransistors have emerged as a distinct research area, characterized by a decrease in channel current under light illumination. Recently, their potential applications have been expanded beyond photodetection. Despite the considerable attention given to negative phototransistors, negative photoconductance (NPC) in particular remains relatively unexplored, with limited research advancements as compared to well-established positive phototransistors. In this study, we designed ferroelectric field-effect transistors (FeFETs) based on the WSe2/CIPS van der Waals (vdW) vertical heterostructures with a buried-gated architecture. The transistor exhibits NPC and positive photoconductance (PPC), demonstrating the significant role of ferroelectric polarization in the distinctive photoresponse. The observed inverse photoconductance can be attributed to the dynamic switching of ferroelectric polarization and interfacial charge transfer processes, which have been investigated experimentally and theoretically using Density Functional Theory (DFT). The unique phenomena enable the coexistence of controllable and polarity-switchable PPC and NPC. The novel feature holds tremendous potential for applications in optical encryption, where the specific gate voltages and light can serve as universal keys to achieve modulation of conductivity. The ability to manipulate conductivity in response to optical stimuli opens up new avenues for developing secure communication systems and data storage technologies. Harnessing this feature enables the design of advanced encryption schemes that rely on the unique properties of our material system. The study not only advances the development of NPC but also paves the way for more robust and efficient methods of optical encryption, ensuring the confidentiality and integrity of critical information in various domains, including data transmission, and information security.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" 11","pages":" 5099-5109"},"PeriodicalIF":13.3,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10570412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Are MXenes suitable for soft multifunctional composites?† MXenes是否适用于柔软的多功能复合材料？

IF 13.3 2区材料科学

Materials Horizons Pub Date : 2023-08-30 DOI: 10.1039/D3MH00916E

Cerwyn Chiew and Mohammad H. Malakooti

{"title":"Are MXenes suitable for soft multifunctional composites?†","authors":"Cerwyn Chiew and Mohammad H. Malakooti","doi":"10.1039/D3MH00916E","DOIUrl":"10.1039/D3MH00916E","url":null,"abstract":"MXenes are a family of two-dimensional (2D) nanomaterials known for their high electrical and thermal conductivity, as well as high aspect ratios. Recent research has focused on dispersing MXenes within compliant polymer matrices, aiming to create flexible and stretchable composites that harness MXenes’ exceptional conductivity and aspect ratios. Experimental findings demonstrate the potential of MXene polymer composites (MXPCs) as flexible electrical, thermal conductors, and high dielectric materials, with promising applications in soft matter engineered systems. However, the 2D structure of MXene inclusions and their relatively large elastic modulus can impart increased stiffness to the polymer matrix, posing limitations on the mechanical flexibility of these functional materials. Here, we introduce a modeling platform to predict the mechanics and functionality of MXene elastomer composites and assess their suitability as soft multifunctional materials. Our investigation primarily focuses on understanding the influence of MXenes’ size, layered structure, and percolation arrangements on the effective properties of the resulting composites. Through our model, we successfully determined the elastic modulus, thermal conductivity, and dielectric constant of MXene elastomer composites, and our results exhibit strong agreement with those obtained through finite element analysis. By utilizing this framework, we can theoretically identify the necessary microstructures of MXenes and guide the experiments, enabling the creation of MXPCs with the desired synergistic mechanical and functional properties.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" 11","pages":" 5110-5125"},"PeriodicalIF":13.3,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10205957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tailoring biomaterials for biomimetic organs-on-chips 为芯片上的仿生器官量身定制生物材料。

IF 13.3 2区材料科学

Materials Horizons Pub Date : 2023-08-30 DOI: 10.1039/D3MH00755C

Lingyu Sun, Feika Bian, Dongyu Xu, Yuan Luo, Yongan Wang and Yuanjin Zhao

{"title":"Tailoring biomaterials for biomimetic organs-on-chips","authors":"Lingyu Sun, Feika Bian, Dongyu Xu, Yuan Luo, Yongan Wang and Yuanjin Zhao","doi":"10.1039/D3MH00755C","DOIUrl":"10.1039/D3MH00755C","url":null,"abstract":"Organs-on-chips are microengineered microfluidic living cell culture devices with continuously perfused chambers penetrating to cells. By mimicking the biological features of the multicellular constructions, interactions among organs, vascular perfusion, physicochemical microenvironments, and so on, these devices are imparted with some key pathophysiological function levels of living organs that are difficult to be achieved in conventional 2D or 3D culture systems. In this technology, biomaterials are extremely important because they affect the microstructures and functionalities of the organ cells and the development of the organs-on-chip functions. Thus, herein, we provide an overview on the advances of biomaterials for the construction of organs-on-chips. After introducing the general components, structures, and fabrication techniques of the biomaterials, we focus on the studies of the functions and applications of these biomaterials in the organs-on-chips systems. Applications of the biomaterial-based organs-on-chips as alternative animal models for pharmaceutical, chemical, and environmental tests are described and highlighted. The prospects for exciting future directions and the challenges of biomaterials for realizing the further functionalization of organs-on-chips are also presented.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" 11","pages":" 4724-4745"},"PeriodicalIF":13.3,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10216133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An adhesive peptide specifically induces microtubule condensation† 一种特异性诱导微管凝聚的粘附肽。

IF 13.3 2区材料科学

Materials Horizons Pub Date : 2023-08-30 DOI: 10.1039/D3MH00867C

Yi-Jing Li, Jia-Qi Wang, Wen Tian, Lu Han, Ting Xiao, Xiu-Hai Wu, Lei Wang, Pei-Pei Yang, Hui Cao, Wan-Hai Xu and Hao Wang

引用次数: 0

Bloch-type magnetic skyrmions in two-dimensional lattices† 二维晶格中的Bloch型磁性skyrmions。

IF 13.3 2区材料科学

Materials Horizons Pub Date : 2023-08-26 DOI: 10.1039/D3MH00868A

Wenhui Du, Kaiying Dou, Zhonglin He, Ying Dai, Baibiao Huang and Yandong Ma

{"title":"Bloch-type magnetic skyrmions in two-dimensional lattices†","authors":"Wenhui Du, Kaiying Dou, Zhonglin He, Ying Dai, Baibiao Huang and Yandong Ma","doi":"10.1039/D3MH00868A","DOIUrl":"10.1039/D3MH00868A","url":null,"abstract":"Magnetic skyrmions in two-dimensional lattices are a prominent topic of condensed matter physics and materials science. Current research efforts in this field are exclusively constrained to Néel-type and antiskyrmions, while Bloch-type magnetic skyrmions are rarely explored. Here, we report the discovery of Bloch-type magnetic skyrmions in a two-dimensional lattice of MnInP2Te6, using first-principles calculations and Monte-Carlo simulations. Arising from the joint effect of broken inversion symmetry and strong spin–orbit coupling, monolayer MnInP2Te6 presents large Dzyaloshinskii–Moriya interaction. This, along with ferromagnetic exchange interaction and out-of-plane magnetic anisotropy, gives rise to skyrmion physics in monolayer MnInP2Te6, in the absence of a magnetic field. Remarkably, different from all previous works on two-dimensional lattices, the resultant magnetic skyrmions feature Bloch-type magnetism, which is protected by D3 symmetry. Furthermore, Bloch-type magnetic bimerons are also identified in monolayer MnTlP2Te6. The phase diagrams of these Bloch-type topological magnetisms under a magnetic field, temperature and strain are mapped out. Our results greatly enrich the research on magnetic skyrmions in two-dimensional lattices.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" 11","pages":" 5071-5078"},"PeriodicalIF":13.3,"publicationDate":"2023-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10155803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tunable thermoplastic elastomer gels derived from controlled-distribution triblock copolymers with crystallizable endblocks† 可调热塑性弹性体凝胶来源于具有可结晶端嵌段的可控分布三嵌段共聚物。

IF 13.3 2区材料科学

Materials Horizons Pub Date : 2023-08-25 DOI: 10.1039/D3MH01018J

Nathan T. Hames, Drew Balsbough, Jiaqi Yan, Siyu Wu, Xiaobing Zuo and Richard J. Spontak

{"title":"Tunable thermoplastic elastomer gels derived from controlled-distribution triblock copolymers with crystallizable endblocks†","authors":"Nathan T. Hames, Drew Balsbough, Jiaqi Yan, Siyu Wu, Xiaobing Zuo and Richard J. Spontak","doi":"10.1039/D3MH01018J","DOIUrl":"10.1039/D3MH01018J","url":null,"abstract":"Thermoplastic elastomers (TPEs), a commercially important category of triblock copolymers, are employed alone or upon physical modification with a midblock-selective oil (to form TPE gels, TPEGs) in a broad range of contemporary technologies. While most copolymers in this class of self-networking macromolecules possess glassy polystyrene endblocks and a rubbery polydiene or polyolefin midblock, we investigate TPEGs fabricated from a novel controlled-distribution copolymer with crystallizable polyolefin endblocks and a random-copolymer midblock. According to both electron microscopy and small-angle scattering, the morphologies of these TPEGs remain largely invariant up to 40 wt% oil and then transform considerably at higher oil levels. Although reductions in endblock melting point and crystallinity measured by thermal calorimetry accompany increasing oil content, mechanical properties such as the uniaxial strain at break and fracture toughness improve in some cases by over 50% between 5 and 40 wt% oil. In fact, the strain at break can reach 2500% within this range, thereby confirming that (i) the structure–property relationships of these unique TPEGs are highly composition-tunable and (ii) these TPEGs, stabilized by crystallizable endblocks, provide an attractive alternative for ultrasoft and stretchy recyclable materials.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" 11","pages":" 4968-4975"},"PeriodicalIF":13.3,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10067732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Anion-modulated CoP electrode as bifunctional electrocatalyst for anion-exchange membrane hydrazine-assisted water electrolyser† 阴离子调制CoP电极作为阴离子交换膜肼辅助水电解槽的双功能电催化剂。

IF 13.3 2区材料科学

Materials Horizons Pub Date : 2023-08-24 DOI: 10.1039/D3MH00872J

Kaixun Li, Yun Tong, JinFeng He, Xiang-Yang Liu and Pengzuo Chen

{"title":"Anion-modulated CoP electrode as bifunctional electrocatalyst for anion-exchange membrane hydrazine-assisted water electrolyser†","authors":"Kaixun Li, Yun Tong, JinFeng He, Xiang-Yang Liu and Pengzuo Chen","doi":"10.1039/D3MH00872J","DOIUrl":"10.1039/D3MH00872J","url":null,"abstract":"The hydrazine oxidation reaction (HzOR) is considered as a promising alternative process of the oxygen evolution reaction (OER) to realize more energy-efficient hydrogen generation. However, the lack of highly active bifunctional catalysts poses a huge challenge to this strategy. In this work, we report a novel and universal electrodeposition strategy to rationally synthesize a self-supporting electrode. The utilization of ammonium fluoride helps to modulate not only the morphology of CoP, but also the synchronous formation of an anion-modified structure, leading to an excellent bifunctional performance. The optimal F-CoP/CF exhibits small potentials of −90 mV and 41 mV at 1 A cm−2, high stability and low Tafel slopes of 28 mV dec−1 and 3.26 mV dec−1 for the HER and HzOR, respectively. The highly efficient and stable bifunctional activity of F-CoP/CF can be further confirmed in an anion-exchange membrane hydrazine-assisted water electrolyzer (0.49 V at 1 A cm−2). Utilizing the density functional theory calculations, the optimized adsorption energy of water molecules and hydrogen intermediates of the HER as well as the rate-determining step of the HzOR are demonstrated for the F-CoP.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" 11","pages":" 5277-5287"},"PeriodicalIF":13.3,"publicationDate":"2023-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41092705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Interfacial engineering of a vertically stacked graphene/h-BN heterostructure as an efficient electrocatalyst for hydrogen peroxide synthesis. 垂直堆叠石墨烯/h-BN异质结构的界面工程作为过氧化氢合成的有效电催化剂。

IF 13.3 2区材料科学

Materials Horizons Pub Date : 2023-08-23 DOI: 10.2139/ssrn.4296899

Yuying Zhao, Xianghong Xu, Qixin Yuan, Yuhan Wu, Kang Sun, Bei Li, Zeming Wang, Ao Wang, Hao Sun, Mengmeng Fan, Jianchun Jiang

{"title":"Interfacial engineering of a vertically stacked graphene/h-BN heterostructure as an efficient electrocatalyst for hydrogen peroxide synthesis.","authors":"Yuying Zhao, Xianghong Xu, Qixin Yuan, Yuhan Wu, Kang Sun, Bei Li, Zeming Wang, Ao Wang, Hao Sun, Mengmeng Fan, Jianchun Jiang","doi":"10.2139/ssrn.4296899","DOIUrl":"https://doi.org/10.2139/ssrn.4296899","url":null,"abstract":"Recently, it was reported that an in-plane graphene (G)/hexagonal boron nitride (h-BN) (G/h-BN) heterostructure provided the catalytic activity for H2O2 synthesis by the 2 e- oxygen reduction reaction (ORR). However, there are few reports on the vertically stacked G/h-BN heterostructure, which refers to the stacking of graphene domains on the surface of h-BN. Herein, a simulated chemical vapor deposition method is proposed for fabricating a heterostructure of abundant vertically stacked G/h-BN by in situ growing graphene quantum dots (GQDs) on porous h-BN sheets. The performance of our vertically stacked heterostructure catalyst is superior to that of reported carbon-based electrocatalysts under an alkaline environment, with an H2O2 selectivity of 90-99% in a wide potential range (0.35 V-0.7 V vs. RHE), over 90% faradaic efficiency, and high mass activity of 1167 mmol gcatalyst-1 h-1. The experimental results and density functional theory (DFT) simulation verified that the vertically stacked heterostructure exhibits an excellent catalytic performance for the 2 e- ORR, and the edge B atoms in the B-centered AB stacking model are the most active catalytic sites. This research adequately demonstrates the promising catalytic activity of the vertically stacked G/h-BN heterostructure and provides a facile route for fabricating other vertically stacked heterostructures.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":13.3,"publicationDate":"2023-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42206190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Supraparticles on beads for supported catalytically active liquid metal solutions – the SCALMS suprabead concept† 用于负载催化活性液态金属溶液的珠上超微粒-SCALMS超珠概念。

IF 13.3 2区材料科学

Materials Horizons Pub Date : 2023-08-23 DOI: 10.1039/D3MH01020A

Thomas Zimmermann, Nnamdi Madubuko, Philipp Groppe, Theodor Raczka, Nils Dünninger, Nicola Taccardi, Simon Carl, Benjamin Apeleo Zubiri, Erdmann Spiecker, Peter Wasserscheid, Karl Mandel, Marco Haumann and Susanne Wintzheimer

引用次数: 1

Electron transfer bridge inducing polarization of nitrogen molecules for enhanced photocatalytic nitrogen fixation† 电子转移桥诱导氮分子极化以增强光催化固氮。

IF 13.3 2区材料科学

Materials Horizons Pub Date : 2023-08-22 DOI: 10.1039/D3MH01041D

Huiyi Li, Jiongrong Wang, Zhoushilin Ruan, Pengfei Nan, Binghui Ge, Ming Cheng, Lan Yang, Xiaohong Li, Qilong Liu, Bicai Pan, Qun Zhang, Chong Xiao and Yi Xie

{"title":"Electron transfer bridge inducing polarization of nitrogen molecules for enhanced photocatalytic nitrogen fixation†","authors":"Huiyi Li, Jiongrong Wang, Zhoushilin Ruan, Pengfei Nan, Binghui Ge, Ming Cheng, Lan Yang, Xiaohong Li, Qilong Liu, Bicai Pan, Qun Zhang, Chong Xiao and Yi Xie","doi":"10.1039/D3MH01041D","DOIUrl":"10.1039/D3MH01041D","url":null,"abstract":"Ammonia (NH3) plays a crucial role in the production of fertilizers, medicines, fibers, etc., which are closely relevant to the development of human society. However, the inert and nonpolar properties of N<img>N seriously hinder artificial nitrogen fixation under mild conditions. Herein, we introduce a novel strategy to enhance the photocatalytic efficiency of N2 fixation through the directional polarization of N2 by rare earth metal atoms, which act as a local “electron transfer bridge.” This bridge facilitates the transfer of delocalized electrons to the distal N atom and redirects the polarization of adsorbed N2 molecules. Taking cerium doped BiOCl (Ce–BiOCl) as an example, our results reveal that the electrons transfer to the distal N atom through the cerium atom, resulting in absorbed nitrogen molecular polarization. Consequently, the polarized nitrogen molecules exhibit an easier trend for N<img>N cleavage and the subsequent hydrogenation process, and exhibit a greatly enhanced photocatalytic ammonia production rate of 46.7 μmol g−1 h−1 in cerium doped BiOCl, nearly 4 times higher than that of pure BiOCl. The original concept of directional polarization of N2 presented in this work not only deepens our understanding of the N2 molecular activation mechanism but also broadens our horizons for designing highly efficient catalysts for N2 fixation.","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" 11","pages":" 5053-5059"},"PeriodicalIF":13.3,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10185793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1