Materials Today Nano最新文献

{"title":"Green synthesis of high-quality indium phosphide quantum dots using tripyrrolidine phosphine as a promising phosphorus source for white LED","authors":"Qiwen Xue ,&nbsp;Peiqing Cai ,&nbsp;Xipeng Pu ,&nbsp;Qi Ai ,&nbsp;Junjie Si ,&nbsp;Xin Yao ,&nbsp;Gongxun Bai ,&nbsp;Qianmin Dong ,&nbsp;Zugang Liu","doi":"10.1016/j.mtnano.2024.100457","DOIUrl":"https://doi.org/10.1016/j.mtnano.2024.100457","url":null,"abstract":"<div><p>Indium phosphide quantum dots (InP QDs) have emerged as highly promising contenders for cadmium-based quantum dots, primarily due to their environmentally sustainable attributes. Early methods for synthesizing InP QDs employed tris(trimethylsilyl)phosphine and tris(dimethylamino)phosphine as phosphorus sources. However, the associated toxicity and hazards of these sources have hindered further progress. In this study, we introduce tripyrrolidine phosphine as a safe alternative phosphorus source. This source not only guarantees affordability, but also simplifies recycling and hazardous waste treatment processes. Simultaneously, precise regulation of the Zn precursor during the growth of the ZnS shell has enabled the synthesis of InP QDs of exceptional quality with a prominent emission peak at 525 nm, an impressive photoluminescence quantum yield of 76.11 %, and a narrow half-peak width of 37 nm. This achievement sets a significant precedent for the development of an environmentally friendly InP QD synthesis methodology. Furthermore, the incorporation of the QDs into white LEDs yields compelling outcomes, including color coordinates of (0.33, 0.30) and a measured correlated color temperature of 5637 K. Therefore, this study not only establishes an innovative path for InP QD production, but also drives their broader integration into the realm of white LED applications.</p></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"25 ","pages":"Article 100457"},"PeriodicalIF":10.3,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139709050","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}

{"title":"Self-powered broadband RGB imaging photodetector based on air-stabilized Bi2Te3 nanosheets","authors":"Chenchen Zhao ,&nbsp;Dongbo Wang ,&nbsp;Wen He ,&nbsp;Bingke Zhang ,&nbsp;Jingwen Pan ,&nbsp;Zhi Zeng ,&nbsp;Xiangyu Zhang ,&nbsp;Donghao Liu ,&nbsp;Sihang Liu ,&nbsp;Gang Liu ,&nbsp;Xuan Fang ,&nbsp;Dan Fang ,&nbsp;Liancheng Zhao ,&nbsp;Jinzhong Wang","doi":"10.1016/j.mtnano.2024.100455","DOIUrl":"10.1016/j.mtnano.2024.100455","url":null,"abstract":"<div><p>Room temperature self-powered broadband (RTSPBD) response photodetectors have received considerable attention and are also very helpful in alleviating today's energy and environmental crisis. Herein, bismuth telluride (Bi₂Te₃) nanosheets were successfully synthesized and assembled into an RTSPBD photodetector. The Bi₂Te₃ photodetector exhibits excellent response characteristics: wide spectral range, maximum responsivity (10.254 mA/W, 435 nm), photocurrent density (106 μA/cm²), <em>I</em>_<em>on</em><em>/I</em>_<em>off</em> (71, 365 nm, 25 mW/cm²), rise/decay time (<em>τ</em>_{<em>rise</em>} = 0.0475 s and <em>τ</em>_{<em>decay</em>} = 0.0468 s) and cycling stability. A superior responsivity from the ultraviolet to infrared (UV-IR) region is observed, which is attributed to the fact that the narrow bandgap topological insulating state of Bi₂Te₃ provides a fast charge transport channel for electrons generated by the photovoltaic effect. In addition, it was found that these devices have potential applications in red-green-blue (RGB) triple primary color imaging. It is anticipated that this work will provide a great promising candidate material for the design and preparation of high-performance RTSPBD photodetection imaging devices in the future.</p></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"25 ","pages":"Article 100455"},"PeriodicalIF":10.3,"publicationDate":"2024-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139679299","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}

{"title":"A low power memristor based on Lu doped HfO2 ferroelectric thin films and its multifunctional realization","authors":"Xiaobing Yan ,&nbsp;Jiahao Bai ,&nbsp;Yinxing Zhang ,&nbsp;Hong Wang,&nbsp;Jianhui Zhao,&nbsp;Zhenyu Zhou,&nbsp;Yong Sun,&nbsp;Zhongrong Wang,&nbsp;Zhenqiang Guo,&nbsp;Zhen Zhao,&nbsp;Jiangzhen Niu","doi":"10.1016/j.mtnano.2024.100458","DOIUrl":"10.1016/j.mtnano.2024.100458","url":null,"abstract":"<div><p>Next-generation non-volatile memories with low power consumption and multiple functions are highly desired in the era of big data. Here, we report a high-performance ferroelectric memristor Pd/Lu:HfO₂/La_0.7Sr_0.3MnO₃/SrTiO₃/Si, which has low average set and reset powers of 4.28 nW and 0.75 nW, respectively. It can successfully simulate biological synaptic functions, such as the refractory period, spike-timing-dependent plasticity, and paired pulse facilitation. Moreover, the device realizes the simulation of decimal addition and multiplication. In particular, the device can be combined with the threshold device to form a neuromorphic network, which not only realizes multi-value data storage, data decryption and encryption, but also intensity modulation of peak frequency. These results may throw light on the way for the future research of low-power multifunctional neuro morphology chips.</p></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"25 ","pages":"Article 100458"},"PeriodicalIF":10.3,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139665789","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}

{"title":"Boosting sodium-ion battery performance by nitrogen-doped bamboo-like branched carbon nanotube","authors":"Yongsheng Zhou ,&nbsp;Yihao Mo ,&nbsp;You Liu ,&nbsp;Erhui Zhang ,&nbsp;Kaiyuan Wei ,&nbsp;Yingchun Zhu ,&nbsp;Bingshe Xu ,&nbsp;Xueji Zhang","doi":"10.1016/j.mtnano.2024.100456","DOIUrl":"10.1016/j.mtnano.2024.100456","url":null,"abstract":"<div><p><span><span>Na-ion batteries have been considered promising substitutes for lithium-ion batteries due to the abundance of </span>sodium<span> resources. However, their large-scale application is limited by issues such as low capacity and poor rate capability. Here, we report a branched bamboo-like carbon nanotube (BBCNT) anode for Na</span></span>⁺ storage. The obtained BBCNT material exhibits nitrogen-doping active sites, suitable mesopores, and bamboo-like hollow structure with numerous branches. The optimized BBCNT-2 material delivers a reversible capacity of 416 mAh g⁻¹ at 100 mA g⁻¹, superior rate capability of 257 mAh g⁻¹ at 2 A g⁻¹<span>, and excellent reversible capacity for 4500 cycles. Owing to the fast charge diffusion, BBCNT-2 achieved an excellent capacity of 209 and 196 mAh g</span>⁻¹ under the current densities of 16 000 and 32 000 mA g⁻¹, respectively. The ex-situ Raman analysis reveals that BBCNT-2 retains its structural features during a complete intercalation/deintercalation cycle of Na⁺. This work will shed lights on the design of high-performance carbon for low-cost and high-performance batteries.</p></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"25 ","pages":"Article 100456"},"PeriodicalIF":10.3,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139665661","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}

{"title":"Tetrahedral framework nucleic acids improve the effectiveness of adipose-derived mesenchymal stem cells in the repair of acute liver failure","authors":"Daxu Zhang ,&nbsp;Liwei Fu ,&nbsp;Yuting Yang ,&nbsp;Quanyi Guo ,&nbsp;Jingjing Hu ,&nbsp;Pinxue Li ,&nbsp;Shuo Zhao ,&nbsp;Xiaonan Shi ,&nbsp;WeiLong Li ,&nbsp;Yunfeng Lin ,&nbsp;Wenping Lu ,&nbsp;Li Yan","doi":"10.1016/j.mtnano.2024.100454","DOIUrl":"10.1016/j.mtnano.2024.100454","url":null,"abstract":"<div><p>Acute liver failure (ALF) often progresses rapidly and ultimately causes a high mortality due to the lack of timely and effective treatment strategies. Transplantation based on adipose-derived mesenchymal stem cells (ADSCs) has shown strong potential in treating ALF. However, the efficacy of ADSCs transplanted into vivo is often unsatisfactory, which seriously affects the therapeutic effect on ALF. Many studies have proven that tFNAs, as novel nanomaterials, regulate the function of cells. In this study, we evaluated the functional changes in ADSC proliferation, migration and hepatogenic differentiation after treatment with tFNAs. Relevant results demonstrated that tFNAs improved ADSCs proliferation and migration. In addition, combined with biological informatics, we comformed that tFNAs can improve hepatogenic differentiation of ADSCs via activating the MAPK signalling pathway. Furthermore, in vivo experimental studies with ALF model mice showed that tFNAs not only increased the number of ADSCs migrating to the damaged liver but also significantly improved the effectiveness of ADSCs in the repair of liver tissue. In conclusion, tFNAs combined with ADSCs were used in the treatment of ALF for the first time, which defines a promising method to improve the efficiency of ADSC transplantation in the treatment of ALF.</p></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"25 ","pages":"Article 100454"},"PeriodicalIF":10.3,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S258884202400004X/pdfft?md5=2f67097f07bb421127abe73d7c441888&pid=1-s2.0-S258884202400004X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139666243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Osteopromotive PDA-modified gold nanoparticles-incorporated bioinspired polycaprolactone-based nanofibers for bone cancer therapy and robust bone regeneration","authors":"Richa Jaswal ,&nbsp;Dinesh Kumar ,&nbsp;Vignesh Krishnamoorthi Kaliannagounder ,&nbsp;Abdelrahman I. Rezk ,&nbsp;Rupesh Kandel ,&nbsp;Chan Hee Park ,&nbsp;Kyung Hyun Min","doi":"10.1016/j.mtnano.2024.100453","DOIUrl":"https://doi.org/10.1016/j.mtnano.2024.100453","url":null,"abstract":"<div><p><span><span>The limited efficacy of traditional therapies for bone cancer and related bone defects led to the instigation of new bifunctional therapies. In this work, polydopamine<span> (PDA) coated gold nanospheres (GNSs) were integrated into polycaprolactone (PCL) to fabricate bifunctional randomly oriented PCL-GNSs@PDA nanofibrous composite scaffolds and applied for photothermal bone cancer therapy and robust bone tissue regeneration. GNSs (30 nm sized) were coated with a uniform 10 nm layer of PDA, and the resulting GNSs@PDA core-shell </span></span>nanoparticles<span><span><span> were incorporated in three different concentrations (1.5, 3.0, and 5.0 mg) in PCL-based random nanofibers. The integration of GNSs@PDA nanoparticles enhanced </span>electric conductivity<span>, surface area, elasticity, compressive strength, photothermal properties as well as biocompatibility, photo-activity, and protein absorption of synthesized PCL-GNSs@PDA composite nanofibers which played a crucial role on its bifunctionality. Random-oriented PCL-GNSs@PDA (5.0 mg) </span></span>nanofibrous scaffold showed superior photothermal activity which led to 94 % of bone cancer cell (MG-63 cells) ablation by maximum cell alteration and damaged cytoskeleton at low NIR light power (0.5 W/cm</span></span>²<span><span><span>) irradiation for 5 min. FACS analysis after 24 hours also displayed a higher percentage of apoptosis (60.2 %) in comparison to pure PCL (7.5 %) suggesting that PCL-GNSs@PDA (5.0 mg) induced highly efficient apoptosis in MG-63 cells. Also, PCL-GNSs@PDA (5.0 mg) showed higher </span>cell proliferation, excellent cytocompatibility, and optimal cell adhesion for bone tissue (MC3T3-E1 cells) regeneration after 21-days as suggested by </span>ALP<span>, ARS<span>, von Kossa staining, and qRT-PCR results. Bifunctional PCL-GNSs@PDA showed great potential as osteopromotive and bioinspired nanocomposite tissue engineering scaffolds for highly efficient bone cancer phototherapy and bone reconstruction.</span></span></span></p></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"25 ","pages":"Article 100453"},"PeriodicalIF":10.3,"publicationDate":"2024-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139652871","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}

{"title":"Electrospun nanofiber nonwovens and sponges towards practical applications of waterproofing, thermal insulation, and electromagnetic shielding/absorption","authors":"Shujing Li ,&nbsp;Gaigai Duan ,&nbsp;Guoying Zhang ,&nbsp;Haoqi Yang ,&nbsp;Haoqing Hou ,&nbsp;Yunqian Dai ,&nbsp;Yueming Sun ,&nbsp;Shaohua Jiang","doi":"10.1016/j.mtnano.2024.100452","DOIUrl":"10.1016/j.mtnano.2024.100452","url":null,"abstract":"<div><p><span>As a versatile and efficient technology, electrospinning is a powerful method for the fabrication of nanofiber nonwovens and sponges with high porosity, low density, and large specific surface area, which have great potential for numerous applications. In this review, the working mechanisms, preparation, and modification methods, as well as recent progress of nanofiber nonwovens and sponges towards waterproofing, </span>thermal insulation, and electromagnetic (EM) shielding/absorption have been systematically discussed. More prominently, this review provides some insightful perspectives of electrospinning technology toward practical applications covering the range from nanofibers to nanofiber-based sponges. Expectantly, our review will offer important and thoughtful guidance not only for the rational design of nanofiber nonwovens and sponges but also for practical applications in the foreseeable future.</p></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"25 ","pages":"Article 100452"},"PeriodicalIF":10.3,"publicationDate":"2024-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139516584","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}

{"title":"Designing multifunctional basalt-CeO2@C3N4/epoxy novolac composite coating with outstanding corrosion resistance and CO2 gas barrier properties","authors":"Yue Sun ,&nbsp;Chijia Wang ,&nbsp;Sicheng Yuan ,&nbsp;Bin Liang ,&nbsp;Renjie Lu ,&nbsp;Xiaoning Li ,&nbsp;Ye Yuan ,&nbsp;Yanji Zhu ,&nbsp;Huaiyuan Wang","doi":"10.1016/j.mtnano.2024.100451","DOIUrl":"10.1016/j.mtnano.2024.100451","url":null,"abstract":"<div><p><span>The greenhouse effect caused by CO</span>₂<span> emissions is becoming more and more serious, and the carbon capture, utilization and storage (CCUS) is a feasible strategy to reduce emissions. However, the corrosion problem brought by CCUS is unprecedentedly serious. In this paper, we present a composite epoxy novolac (EN) system for resisting corrosion of metals in CCUS environments. In this system, nanorod CeO</span>₂<span> and nanosheet C</span>₃N₄<span> are simultaneously grown on the surface of the micron sheet basalt (Bt), which are used as effective additives to improve the corrosion resistance and CO</span>₂<span> gas<span> barrier properties of EN. Only with 3 % of nanoparticles<span><span> addition, a significant reduction of the gas diffusion of </span>composite film to dry CO</span></span></span>₂ has been observed, up to 5.88 × 10⁻¹² m²<span>/s. This is associated with the synergistic enhancement of the physical shielding effect by the nano and micron sheets. Additionally, we found that adsorption of oxygen vacancy of CeO</span>₂ material with CO₂ enhances the stability of corrosion resistance. Therefore, the |Z|_0.01 Hz of the Bt-CeO₂@C₃N₄/EN coating is above 10⁶ Ω cm² higher than that of the EN coating after 25 days of immersion in a 3.0 MPa CO₂ aqueous solution at 70 °C. Overall, the anti-corrosion coating system combines long-lasting water resistance and low CO₂ gas transmission in harsh corrosive environments, and thus has a high potential for CCUS applications.</p></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"25 ","pages":"Article 100451"},"PeriodicalIF":10.3,"publicationDate":"2024-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139463337","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}

{"title":"Protective hydrothermal treatment to improve ion pathway in Ti3C2Tx MXene for high-performance flexible supercapacitors","authors":"M. Lai ,&nbsp;K. Chen ,&nbsp;D. Wang ,&nbsp;P. Cai ,&nbsp;L. Sun ,&nbsp;K. Zhang ,&nbsp;B. Li ,&nbsp;C. Yuan ,&nbsp;Y. Zou ,&nbsp;Z. Wang ,&nbsp;H. Peng","doi":"10.1016/j.mtnano.2023.100450","DOIUrl":"10.1016/j.mtnano.2023.100450","url":null,"abstract":"<div><p>The strong re-stacking of Ti₃C₂T_x<span><span><span> MXene<span> nanosheets severely blocks ion transport pathway and sacrifices </span></span>electrochemical performance. Here, a protective </span>hydrothermal treatment is used to improve ion pathway in Ti</span>₃C₂T_x MXene. The protective hydrothermal treatment is simply conducted in the hydrothermal kettle (filled with N₂ atmosphere) placed in vacuum oven. The optimal Ti₃C₂T_x is achieved by the hydrothermal treatment of 150 °C for 12h, and recorded as h-Ti₃C₂T_x@150 °C/12h. The h-Ti₃C₂T_x<span>@150 °C/12h film electrode achieves significantly improved ion transport pathways and enhanced ion accessibility with more pseudocapacitive active sites due to the increased interlayer spacing and pores as well as decreased flake size. According to DFT calculations, a small number of oxides (TiO</span>₂ nanoparticles) produced during the hydrothermal treatment also facilitate to increase the capacitive performance of h-Ti₃C₂T_x@150 °C/12h. Therefore, the h-Ti₃C₂T_x@150 °C/12h film electrode achieves significantly increased capacitance and rate performance. The h-Ti₃C₂T_x@150 °C/12h film electrode exhibits excellent capacitance (498.3 F g⁻¹ and 1911 F cm⁻³ at 1 A g⁻¹) and rate performance (63 % retention from 1 to 20 A g⁻¹) with high cycling stability (98.2 % retention after 20 000 cycles), which are among the best electrochemical performances of undoped Ti₃C₂T_x based film electrodes reported so far. Thick h-Ti₃C₂T_x@150 °C/12h film electrode of 33.1 μm thickness exhibits an ultra-high areal capacitance of 3.23 F cm⁻² at 1 A g⁻¹. Moreover, the h-Ti₃C₂T_x<span>@150 °C/12h-based flexible symmetric supercapacitor device exhibits excellent energy storage performance (117 F g</span>⁻¹ at 0.5 A g⁻¹ and 23.4 Wh kg⁻¹ at 299.8 W kg⁻¹) with high cycling stability (84 % retention after 3000 cycles) and bending stability, outperforming most of previously reported Ti₃C₂T_x<span>-based flexible supercapacitors. The impressive results indicate the great application potential of the h-Ti</span>₃C₂T_x@150 °C/12h film in flexible energy storage devices.</p></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"25 ","pages":"Article 100450"},"PeriodicalIF":10.3,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139056923","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}

{"title":"Heterogeneous interface engineering enabling homogeneous metal halide perovskite nanowires for artificial synapses","authors":"Mei Huang ,&nbsp;Shizhen Zhang ,&nbsp;Peizhi Zhou ,&nbsp;Zhishan Chen ,&nbsp;Huiwang Lian ,&nbsp;Bo Wang ,&nbsp;Qiguang Li ,&nbsp;Sareh Sadat Moshirian_Farahi ,&nbsp;Saravanakumar Subramanian ,&nbsp;Qingguang Zeng ,&nbsp;Yang Li","doi":"10.1016/j.mtnano.2023.100449","DOIUrl":"10.1016/j.mtnano.2023.100449","url":null,"abstract":"<div><p><span><span>Metal halide </span>perovskites<span> (MHPs)-constructed devices for artificial synapses have attractive and robust prospects in neuromorphic computing<span>. However, the challenge is that their power-consumption does not compete with the biological synapses with a magnitude of fJ per spike. This is since hierarchical 0D/1D nanostructures generated from the phase separation in the liquid-phase reaction of MHPs intrinsically increase the power consumption, while homogeneous 1D MHPs may effectively break such bottleneck. Here, we propose the heterogeneous interface engineering to prepare homogeneous 1D MHPs CsPbI</span></span></span>₃<span> nanowires (NWs) with a very high morphological yield (almost 100 %) and diameter of 17.2 nm. We demonstrate the homogeneous NWs-mediated devices exhibit a low operating voltage (−0.7 V), over one order of magnitude lower than conventional flash memories. Our device also triggers the classic potentiation and depression processes exhibiting excellent electronic synaptic plasticity. This work could be conducive to synthesizing homogeneous 1D MHPs nanostructure in artificial synapses and inspire more research on various nanostructures for neuromorphic system application.</span></p></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"25 ","pages":"Article 100449"},"PeriodicalIF":10.3,"publicationDate":"2023-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139036974","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}