Infomat最新文献

{"title":"Tailoring lithium intercalation pathway in 2D van der Waals heterostructure for high-speed edge-contacted floating-gate transistor and artificial synapses","authors":"Jun Yu, Jiawei Fu, Hongcheng Ruan, Han Wang, Yimeng Yu, Jinpeng Wang, Yuhui He, Jinsong Wu, Fuwei Zhuge, Ying Ma, Tianyou Zhai","doi":"10.1002/inf2.12599","DOIUrl":"https://doi.org/10.1002/inf2.12599","url":null,"abstract":"Local phase transition in transition metal dichalcogenides (TMDCs) by lithium intercalation enables the fabrication of high-quality contact interfaces in two-dimensional (2D) electronic devices. However, controlling the intercalation of lithium is hitherto challenging in vertically stacked van der Waals heterostructures (vdWHs) due to the random diffusion of lithium ions in the hetero-interface, which hinders their application for contact engineering of 2D vdWHs devices. Herein, a strategy to restrict the lithium intercalation pathway in vdWHs is developed by using surface-permeation assisted intercalation while sealing all edges, based on which a high-performance edge-contact MoS₂ vdWHs floating-gate transistor is demonstrated. Our method avoids intercalation from edges that are prone to be random but intentionally promotes lithium intercalation from the top surface. The derived MoS₂ floating-gate transistor exhibits improved interface quality and significantly reduced subthreshold swing (<i>SS</i>) from &gt;600 to 100 mV dec^–1. In addition, ultrafast program/erase performance together with well-distinguished 32 memory states are demonstrated, making it a promising candidate for low-power artificial synapses. The study on controlling the lithium intercalation pathways in 2D vdWHs offers a viable route toward high-performance 2D electronics for memory and neuromorphic computing purposes.","PeriodicalId":48538,"journal":{"name":"Infomat","volume":null,"pages":null},"PeriodicalIF":22.7,"publicationDate":"2024-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141585510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Aqueous decoupling batteries: Exploring the role of functional ion-exchange membrane","authors":"Shuyue Li, Lujing Wang, Xiaoman Li, Heng Jiang, Fei Du","doi":"10.1002/inf2.12601","DOIUrl":"https://doi.org/10.1002/inf2.12601","url":null,"abstract":"The relentless pursuit of sustainable and safe energy storage technologies has driven a departure from conventional lithium-based batteries toward other relevant alternatives. Among these, aqueous batteries have emerged as a promising candidate due to their inherent properties of being cost-effective, safe, environmentally friendly, and scalable. However, traditional aqueous systems have faced limitations stemming from water's narrow electrochemical stability window (~1.23 V), severely constraining their energy density and viability in high-demand applications. Recent advancements in decoupling aqueous batteries offer a novel solution to overcome this challenge by separating the anolyte and catholyte, thereby expanding the theoretical operational voltage window to over 3 V. One key component of this innovative system is the ion-selective membrane (ISM), acting as a barrier to prevent undesired crossover between electrolytes. This review provides a comprehensive overview of recent advancements in decoupling aqueous batteries, emphasizing the application of various types of ISMs. Moreover, we summarize different specially designed ISMs and their performance attributes. By addressing the current challenges ISMs face, the review outlines potential pathways for future enhancement and development of aqueous decoupling batteries.","PeriodicalId":48538,"journal":{"name":"Infomat","volume":null,"pages":null},"PeriodicalIF":22.7,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141550843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"X-ray-ultraviolet–visible-near-infrared photoresponses realized in a lead-free hybrid perovskite ferroelectric through light-induced ferro-pyro-phototronic effect","authors":"Dongying Fu, Yanli Ma, Shufang Wu, Lin Pan, Qi Wang, Ruifang Zhao, Xian-Ming Zhang, Junhua Luo","doi":"10.1002/inf2.12602","DOIUrl":"https://doi.org/10.1002/inf2.12602","url":null,"abstract":"Due to the built-in electric field induced by spontaneous polarization in hybrid perovskite (HP) ferroelectrics, the devices based on them exhibit excellent performance in self-powered photodetection. However, most of the self-powered photodetector are made of lead-based HP ferroelectrics and have a relatively narrow photoresponse waveband. Although lead-free HPs solve the problem of lead toxicity, their optoelectronic performance is inferior to that of lead-based HPs and photoresponse waveband is limited by its optical band gap, which hinders their further application. To solve this problem, herein, a lead-free HP ferroelectric (HDA)BiI₅ (HDA is hexane-1,6-diammonium) with large spontaneous polarization shows an enhanced photocurrent and achieves x-ray-ultraviolet–visible-near-infrared (x-ray-UV–Vis–NIR) photoresponse through the ferro-pyro-phototronic (FPP) effect. The ferroelectric, pyroelectric, and photovoltaic characteristics coupled together in a single-phase (HDA)BiI₅ ferroelectric is an effective way to improve the performance of the devices. What is particularly attractive is that the FPP effect not only improves the optoelectronic performance of (HDA)BiI₅, but also achieves broadband photoresponses beyond its optical absorption range. Especially, the current boosting with an exceptional contrast of ~1100% and 2400% under 520 and 637 nm, respectively, which is associated with FPP effect. Meanwhile, single crystal self-powered photodetector based on (HDA)BiI₅ also exhibit significant FPP effects even under high-energy x-ray, which owns an outstanding sensitivity of 170.7 μC Gy⁻¹ cm⁻² and a lower detection limit of 266 nGy s⁻¹ at 0 V bias. Therefore, it is of great significance to study the coupling of multiple physical effects and improve device performance based on lead-free HP ferroelectrics.","PeriodicalId":48538,"journal":{"name":"Infomat","volume":null,"pages":null},"PeriodicalIF":22.7,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141502071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"650 ps SET speed in Ge2Sb2Te5 phase change memory induced by TiO2 dielectric crystal plane","authors":"Rui Zhe Zhao, Ke Gao, Rong Jiang Zhu, Zhuo Ran Zhang, Qiang He, Ming Xu, Nian Nian Yu, Hao Tong, Xiang Shui Miao","doi":"10.1002/inf2.12598","DOIUrl":"https://doi.org/10.1002/inf2.12598","url":null,"abstract":"Crystallization speed of phase change material is one of the main obstacles for the application of phase change memory (PCM) as storage class memory in computing systems, which requires the combination of nonvolatility with ultra-fast operation speed in nanoseconds. Here, we propose a novel approach to speed up crystallization process of the only commercial phase change chalcogenide Ge₂Sb₂Te₅ (GST). By employing TiO₂ as the dielectric layer in phase change device, operation speed of 650 ps has been achieved, which is the fastest among existing representative PCM, and is comparable to the programing speed of commercial dynamic random access memory (DRAM). Because of its octahedral atomic configuration, TiO₂ can provide nucleation interfaces for GST, thus facilitating the crystal growth at the determinate interface area. Ti–O–Ti–O four-fold rings on the (110) plane of tetragonal TiO₂ is critical for the fast-atomic rearrangement in the amorphous matrix of GST that enables ultra-fast operation speed. The significant improvement of operation speed in PCM through incorporating standard dielectric material TiO₂ in DRAM paves the way for the application of phase change memory in high performance cache-type data storage.","PeriodicalId":48538,"journal":{"name":"Infomat","volume":null,"pages":null},"PeriodicalIF":22.7,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141550861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Flexible perovskite photodetector with room-temperature self-healing capability without external trigger","authors":"Guoyi Li, Shenghong Li, Jahangeer Ahmed, Wei Tian, Liang Li","doi":"10.1002/inf2.12594","DOIUrl":"https://doi.org/10.1002/inf2.12594","url":null,"abstract":"Flexible perovskite photodetectors (FPDs) are promising for novel wearable devices in bionics, robotics and health care. However, their performance degradation and instability during operations remain a grand challenge. Superior flexibility and spontaneous functional repair of devices without the need for any external drive or intervention are ideal goals for FPDs. Herein, by using phenyl disulfide instead of alkyl disulfide as a crosslinking agent, disulfide bonds with lower bond energy are introduced, thus endowing the polyurethane network (SCPU) with the ability of self-healing at room temperature. SCPU is filled to the grain boundary of perovskite film, which not only improves the crystal quality of perovskite and mechanical stability of FPD but also enables FPD to self-heal at room temperature. As a result, the as-prepared FPD exhibits a superior responsivity of 0.4 A W⁻¹, a high specific detectivity of 2.5 × 10¹¹ Jones and 2 μs fast response time in a self-powered mode. More importantly, the FPD still retained 91% of the initial photo responsivity after 9000 times of bending upon cyclic healing. This polymer doping strategy provides an effective solution for stable operation and room-temperature self-healing for FPDs.","PeriodicalId":48538,"journal":{"name":"Infomat","volume":null,"pages":null},"PeriodicalIF":22.7,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141523767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-sensitive and fast MXene/silicon photodetector for single-pixel X-ray imaging","authors":"Yance Chen, Yue Dai, Srikrishna Chanakya Bodepudi, Xinyu Liu, Yuan Ma, Shiyu Xing, Dawei Di, Feng Tian, Xin Ming, Yingjun Liu, Kai Pang, Fei Xue, Yunyan Zhang, Zexin Yu, Yaping Dan, Oleksiy V. Penkov, Yishu Zhang, Dianyu Qi, Wenzhang Fang, Yang Xu, Chao Gao","doi":"10.1002/inf2.12596","DOIUrl":"https://doi.org/10.1002/inf2.12596","url":null,"abstract":"The demand for high-performance X-ray detectors leads to material innovation for efficient photoelectric conversion and carrier transfer. However, current X-ray detectors are often susceptible to chemical and irradiation instability, complex fabrication processes, hazardous components, and difficult compatibility. Here, we investigate a two-dimensional (2D) material with a relatively low atomic number, Ti₃C₂T_<i>x</i> MXenes, and single crystal silicon for X-ray detection and single-pixel imaging (SPI). We fabricate a Ti₃C₂T_<i>x</i> MXene/Si X-ray detector demonstrating remarkable optoelectronic performance. This detector exhibits a sensitivity of 1.2 × 10⁷ μC Gy_air⁻¹ cm⁻², a fast response speed with a rise time of 31 μs, and an incredibly low detection limit of 2.85 nGy_air s⁻¹. These superior performances are attributed to the unique charge coupling behavior under X-ray irradiation via intrinsic polaron formation. The device remains stable even after 50 continuous hours of high-dose X-ray irradiation. Our device fabrication process is compatible with silicon-based semiconductor technology. Our work suggests new directions for eco-friendly X-ray detectors and low-radiation imaging system.","PeriodicalId":48538,"journal":{"name":"Infomat","volume":null,"pages":null},"PeriodicalIF":22.7,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141502078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surface chemistry of electrode materials toward improving electrolyte-wettability: A method review","authors":"Lei Zhao, Yuanyou Peng, Peiyao Dou, Yuan Li, Tianqi He, Fen Ran","doi":"10.1002/inf2.12597","DOIUrl":"https://doi.org/10.1002/inf2.12597","url":null,"abstract":"The electrolyte-wettability at electrode material/electrolyte interface is a critical factor that governs the fundamental mechanisms of electrochemical reaction efficiency and kinetics of electrode materials in practical electrochemical energy storage. Therefore, the design and construction of electrode material surfaces with improved electrolyte-wettability has been demonstrated to be important to optimize electrochemical energy storage performance of electrode material. Here, we comprehensively summarize advanced strategies and key progresses in surface chemical modification for enhancing electrolyte-wettability of electrode materials, including polar atom doping by post treatment, introducing functional groups, grafting molecular brushes, and surface coating by in situ reaction. Specifically, the basic principles, characteristics, and challenges of these surface chemical strategies for improving electrolyte-wettability of electrode materials are discussed in detail. Finally, the potential research directions regarding the surface chemical strategies and advanced characterization techniques for electrolyte-wettability in the future are provided. This review not only insights into the surface chemical strategies for improving electrolyte-wettability of electrode materials, but also provides strategic guidance for the electrolyte-wettability modification and optimization of electrode materials in pursuing high-performance electrochemical energy storage devices.","PeriodicalId":48538,"journal":{"name":"Infomat","volume":null,"pages":null},"PeriodicalIF":22.7,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141502072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-performance 110 kVp hard x-ray detector based on all-crystalline-surface passivated perovskite single crystals","authors":"Juyoung Ko,&nbsp;Beomjun Park,&nbsp;Jangwon Byun,&nbsp;Sandeep Pandey,&nbsp;Ajin Jo,&nbsp;Joo-Hong Lee,&nbsp;Wonho Lee,&nbsp;Jin-Wook Lee,&nbsp;Nam-Gyu Park,&nbsp;Man-Jong Lee","doi":"10.1002/inf2.12560","DOIUrl":"10.1002/inf2.12560","url":null,"abstract":"<p>Halide perovskite single crystals (SCs) have attracted much attention for their application in high-performance x-ray detectors owing to their desirable properties, including low defect density, high mobility–lifetime product (<i>μτ</i>), and long carrier diffusion length. However, suppressing the inherent defects in perovskites and overcoming the ion migration primarily caused by these defects remains a challenge. This study proposes a facile process for dipping Cs_0.05FA_0.9MA_0.05PbI₃ SCs synthesized by a solution-based inverse temperature crystallization method into a 2-phenylethylammonium iodide (PEAI) solution to reduce the number of defects, inhibit ion migration, and increase x-ray sensitivity. Compared to conventional spin coating, this simple dipping process forms a two-dimensional PEA₂PbI₄ layer on all SC surfaces without further treatment, effectively passivating all surfaces of the inherently defective SCs and minimizing ion migration. As a result, the PEAI-treated perovskite SC-based x-ray detector achieves a record x-ray sensitivity of 1.3 × 10⁵ μC Gy_air⁻¹ cm⁻² with a bias voltage of 30 V at realistic clinical dose rates of 1–5 mGy s⁻¹ (peak potential of 110 kVp), which is 6 times more sensitive than an untreated SC-based detector and 3 orders of magnitude more sensitive than a commercial α-Se-based detector. Furthermore, the PEAI-treated-perovskite SC-based x-ray detector exhibits a low detection limit (73 nGy s⁻¹), improved x-ray response, and clear x-ray images by a scanning method, highlighting the effectiveness of the PEAI dipping approach for fabricating next-generation x-ray detectors.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":48538,"journal":{"name":"Infomat","volume":null,"pages":null},"PeriodicalIF":22.7,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/inf2.12560","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141502073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Simultaneous resistance switching and rectifying effects in a single hybrid perovskite","authors":"Xuefen Song, Junran Zhang, Yuchi Qian, Zhongjing Xia, Jinlian Chen, Hao Yin, Jing Liu, Linbo Feng, Tianyu Liu, Zihong Zhu, Yuyang Hua, You Liu, Jiaxiao Yuan, Feixiang Ge, Dawei Zhou, Mubai Li, Yang Hang, Fangfang Wang, Tianshi Qin, Lin Wang","doi":"10.1002/inf2.12562","DOIUrl":"https://doi.org/10.1002/inf2.12562","url":null,"abstract":"Halide perovskites with naturally coupled electron-ion dynamics hold great potential for nonvolatile memory applications. Self-rectifying memristors are promising as they can avoid sneak currents and simplify device configuration. Here we report a self-rectifying memristor firstly achieved in a single perovskite (NHCINH₃)₃PbI₅ (abbreviated as (IFA)₃PbI₅), which is sandwiched by Ag and ITO electrodes as the simplest cell in a crossbar array device configuration. The iodide ions of (IFA)₃PbI₅ can be easily activated, of which the migration in the bulk contributes to the resistance hysteresis and the reaction with Ag at the interface contributes to the spontaneous formation of AgI. The perfect combination of n-type AgI and p-type (IFA)₃PbI₅ gives rise to the rectification function like a p–n diode. Such a self-rectifying memristor exhibits the record-low set power consumption and voltage. This work emphasizes that the multifunction of ions in perovskites can simplify the fabrication procedure, decrease the programming power, and increase the integration density of future memory devices.","PeriodicalId":48538,"journal":{"name":"Infomat","volume":null,"pages":null},"PeriodicalIF":22.7,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141523768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Revealing processing stability landscape of organic solar cells with automated research platforms and machine learning","authors":"Xiaoyan Du,&nbsp;Larry Lüer,&nbsp;Thomas Heumueller,&nbsp;Andrej Classen,&nbsp;Chao Liu,&nbsp;Christian Berger,&nbsp;Jerrit Wagner,&nbsp;Vincent M. Le Corre,&nbsp;Jiamin Cao,&nbsp;Zuo Xiao,&nbsp;Liming Ding,&nbsp;Karen Forberich,&nbsp;Ning Li,&nbsp;Jens Hauch,&nbsp;Christoph J. Brabec","doi":"10.1002/inf2.12554","DOIUrl":"10.1002/inf2.12554","url":null,"abstract":"<p>We use an automated research platform combined with machine learning to assess and understand the resilience against air and light during production of organic photovoltaic (OPV) devices from over 40 donor and acceptor combinations. The standardized protocol and high reproducibility of the platform results in a dataset of high variety and veracity to deploy machine learning models to encounter links between stability and chemical, energetic, and morphological structure. We find that the strongest predictor for air/light resilience during production is the effective gap <i>E</i>_g,eff which points to singlet oxygen rather than the superoxide anion being the dominant agent in degradation under processing conditions. A similarly good prediction of air/light resilience can also be achieved by considering only features from chemical structure, that is, information which is available prior to any experimentation.</p>","PeriodicalId":48538,"journal":{"name":"Infomat","volume":null,"pages":null},"PeriodicalIF":22.7,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/inf2.12554","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141341420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}