Nature nanotechnology最新文献

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Out-of-plane coordination of iridium single atoms with organic molecules and cobalt–iron hydroxides to boost oxygen evolution reaction 铱单原子与有机分子和钴铁氢氧化物平面外配位,促进氧进化反应
IF 38.1 1区 材料科学
Nature nanotechnology Pub Date : 2024-10-21 DOI: 10.1038/s41565-024-01807-x
Jie Zhao, Yue Guo, Zhiqi Zhang, Xilin Zhang, Qianqian Ji, Hua Zhang, Zhaoqi Song, Dongqing Liu, Jianrong Zeng, Chenghao Chuang, Erhuan Zhang, Yuhao Wang, Guangzhi Hu, Muhammad Asim Mushtaq, Waseem Raza, Xingke Cai, Francesco Ciucci
{"title":"Out-of-plane coordination of iridium single atoms with organic molecules and cobalt–iron hydroxides to boost oxygen evolution reaction","authors":"Jie Zhao, Yue Guo, Zhiqi Zhang, Xilin Zhang, Qianqian Ji, Hua Zhang, Zhaoqi Song, Dongqing Liu, Jianrong Zeng, Chenghao Chuang, Erhuan Zhang, Yuhao Wang, Guangzhi Hu, Muhammad Asim Mushtaq, Waseem Raza, Xingke Cai, Francesco Ciucci","doi":"10.1038/s41565-024-01807-x","DOIUrl":"10.1038/s41565-024-01807-x","url":null,"abstract":"Advancements in single-atom-based catalysts are crucial for enhancing oxygen evolution reaction (OER) performance while reducing precious metal usage. A comprehensive understanding of underlying mechanisms will expedite this progress further. Here we report Ir single atoms coordinated out-of-plane with dimethylimidazole (MI) on CoFe hydroxide (Ir1/(Co,Fe)-OH/MI). This Ir1/(Co,Fe)-OH/MI catalyst, which was prepared using a simple immersion method, delivers ultralow overpotentials of 179 mV at a current density of 10 mA cm−2 and 257 mV at 600 mA cm−2 as well as an ultra-small Tafel slope of 24 mV dec−1. Furthermore, Ir1/(Co,Fe)-OH/MI has a total mass activity exceeding that of commercial IrO2 by a factor of 58.4. Ab initio simulations indicate that the coordination of MI leads to electron redistribution around the Ir sites. This causes a positive shift in the d-band centre at adjacent Ir and Co sites, facilitating an optimal energy pathway for OER. This article presents a new method for coordinating iridium atoms with dimethylimidazole and cobalt–iron hydroxides. This enhances the oxygen evolution reaction and delivers high current densities with reduced precious metal use.","PeriodicalId":18915,"journal":{"name":"Nature nanotechnology","volume":"20 1","pages":"57-66"},"PeriodicalIF":38.1,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41565-024-01807-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451845","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}
引用次数: 0
Synthetic syntrophy for adenine nucleotide cross-feeding between metabolically active nanoreactors 用于代谢活性纳米反应器之间腺嘌呤核苷酸交叉馈送的合成合成物
IF 38.1 1区 材料科学
Nature nanotechnology Pub Date : 2024-10-21 DOI: 10.1038/s41565-024-01811-1
Laura Heinen, Marco van den Noort, Martin S. King, Edmund R. S. Kunji, Bert Poolman
{"title":"Synthetic syntrophy for adenine nucleotide cross-feeding between metabolically active nanoreactors","authors":"Laura Heinen, Marco van den Noort, Martin S. King, Edmund R. S. Kunji, Bert Poolman","doi":"10.1038/s41565-024-01811-1","DOIUrl":"10.1038/s41565-024-01811-1","url":null,"abstract":"Living systems depend on continuous energy input for growth, replication and information processing. Cells use membrane proteins as nanomachines to convert light or chemical energy of nutrients into other forms of energy, such as ion gradients or adenosine triphosphate (ATP). However, engineering sustained fuel supply and metabolic energy conversion in synthetic systems is challenging. Here, inspired by endosymbionts that rely on the host cell for their nutrients, we introduce the concept of cross-feeding to exchange ATP and ADP between lipid-based compartments hundreds of nanometres in size. One population of vesicles enzymatically produces ATP in the mM concentration range and exports it. A second population of vesicles takes up this ATP to fuel internal reactions. The produced ADP feeds back to the first vesicles, and ATP-dependent reactions can be fuelled sustainably for up to at least 24 h. The vesicles are a platform technology to fuel ATP-dependent processes in a sustained fashion, with potential applications in synthetic cells and nanoreactors. Fundamentally, the vesicles enable studying non-equilibrium processes in an energy-controlled environment and promote the development and understanding of constructing life-like metabolic systems on the nanoscale. Here the authors present a syntrophic vesicle system for selective transport of adenine nucleotides between ATP-producing and ATP-consuming nanoreactors. The platform can sustain synthetic cells, bionanoreactors and life-like entities with ATP.","PeriodicalId":18915,"journal":{"name":"Nature nanotechnology","volume":"20 1","pages":"112-120"},"PeriodicalIF":38.1,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41565-024-01811-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451844","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}
引用次数: 0
Linearly programmable two-dimensional halide perovskite memristor arrays for neuromorphic computing 用于神经形态计算的线性可编程二维卤化物过氧化物忆阻器阵列
IF 38.1 1区 材料科学
Nature nanotechnology Pub Date : 2024-10-18 DOI: 10.1038/s41565-024-01790-3
Seung Ju Kim, In Hyuk Im, Ji Hyun Baek, Sungkyun Choi, Sung Hyuk Park, Da Eun Lee, Jae Young Kim, Soo Young Kim, Nam-Gyu Park, Donghwa Lee, J. Joshua Yang, Ho Won Jang
{"title":"Linearly programmable two-dimensional halide perovskite memristor arrays for neuromorphic computing","authors":"Seung Ju Kim, In Hyuk Im, Ji Hyun Baek, Sungkyun Choi, Sung Hyuk Park, Da Eun Lee, Jae Young Kim, Soo Young Kim, Nam-Gyu Park, Donghwa Lee, J. Joshua Yang, Ho Won Jang","doi":"10.1038/s41565-024-01790-3","DOIUrl":"10.1038/s41565-024-01790-3","url":null,"abstract":"The exotic properties of three-dimensional halide perovskites, such as mixed ionic–electronic conductivity and feasible ion migration, have enabled them to challenge traditional memristive materials. However, the poor moisture stability and difficulty in controlling ion transport due to their polycrystalline nature have hindered their use as a neuromorphic hardware. Recently, two-dimensional (2D) halide perovskites have emerged as promising artificial synapses owing to their phase versatility, microstructural anisotropy in electrical and optoelectronic properties, and excellent moisture resistance. However, their asymmetrical and nonlinear conductance changes still limit the efficiency of training and accuracy of inference. Here we achieve highly linear and symmetrical conductance changes in Dion–Jacobson 2D perovskites. We further build a 7 × 7 crossbar array based on analogue perovskite synapses, achieving a high device yield, low variation with synaptic weight storing capability, multi-level analogue states with long retention, and moisture stability over 7 months. We explore the potential of such devices in large-scale image inference via simulations and show an accuracy within 0.08% of the theoretical limit. The excellent device performance is attributed to the elimination of gaps between inorganic layers, allowing the halide vacancies to migrate homogeneously regardless of grain boundaries. This was confirmed by first-principles calculations and experimental analysis. This work presents a 7 × 7 crossbar array based on analog perovskite synapses and suggests that ion transport and interfacial barrier changes are more important than filaments with localized ions when constructing neuromorphic AI accelerators.","PeriodicalId":18915,"journal":{"name":"Nature nanotechnology","volume":"20 1","pages":"83-92"},"PeriodicalIF":38.1,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142448137","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}
引用次数: 0
Energy-efficient magnetization manipulation using picosecond current pulses 利用皮秒电流脉冲进行高能效磁化控制
IF 38.1 1区 材料科学
Nature nanotechnology Pub Date : 2024-10-16 DOI: 10.1038/s41565-024-01789-w
{"title":"Energy-efficient magnetization manipulation using picosecond current pulses","authors":"","doi":"10.1038/s41565-024-01789-w","DOIUrl":"10.1038/s41565-024-01789-w","url":null,"abstract":"Reducing the duration of current pulses used to perform magnetization switching via spin–orbit torques in ferromagnetic and ferrimagnetic samples from microseconds to picoseconds leads to a continuous decrease in the energy consumption. These findings show that speed and efficiency of switching can be combined in various magnetic materials with different properties.","PeriodicalId":18915,"journal":{"name":"Nature nanotechnology","volume":"20 1","pages":"10-11"},"PeriodicalIF":38.1,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142439791","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}
引用次数: 0
The climate crisis is a call for action for nanotechnology 气候危机呼吁纳米技术采取行动
IF 38.1 1区 材料科学
Nature nanotechnology Pub Date : 2024-10-15 DOI: 10.1038/s41565-024-01818-8
{"title":"The climate crisis is a call for action for nanotechnology","authors":"","doi":"10.1038/s41565-024-01818-8","DOIUrl":"10.1038/s41565-024-01818-8","url":null,"abstract":"The Nano4EARTH challenge, launched by the National Nanotechnology Initiative in the United States, has identified four strategic areas where nanotechnology can make the most impact in addressing the climate crisis.","PeriodicalId":18915,"journal":{"name":"Nature nanotechnology","volume":"19 10","pages":"1421-1421"},"PeriodicalIF":38.1,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41565-024-01818-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142439501","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}
引用次数: 0
Magnetoelectric nanodiscs enable wireless transgene-free neuromodulation 磁电纳米圆片实现无线无转基因神经调控
IF 38.1 1区 材料科学
Nature nanotechnology Pub Date : 2024-10-11 DOI: 10.1038/s41565-024-01798-9
Ye Ji Kim, Noah Kent, Emmanuel Vargas Paniagua, Nicolette Driscoll, Anthony Tabet, Florian Koehler, Elian Malkin, Ethan Frey, Marie Manthey, Atharva Sahasrabudhe, Taylor M. Cannon, Keisuke Nagao, David Mankus, Margaret Bisher, Giovanni de Nola, Abigail Lytton-Jean, Lorenzo Signorelli, Danijela Gregurec, Polina Anikeeva
{"title":"Magnetoelectric nanodiscs enable wireless transgene-free neuromodulation","authors":"Ye Ji Kim, Noah Kent, Emmanuel Vargas Paniagua, Nicolette Driscoll, Anthony Tabet, Florian Koehler, Elian Malkin, Ethan Frey, Marie Manthey, Atharva Sahasrabudhe, Taylor M. Cannon, Keisuke Nagao, David Mankus, Margaret Bisher, Giovanni de Nola, Abigail Lytton-Jean, Lorenzo Signorelli, Danijela Gregurec, Polina Anikeeva","doi":"10.1038/s41565-024-01798-9","DOIUrl":"10.1038/s41565-024-01798-9","url":null,"abstract":"Deep brain stimulation with implanted electrodes has transformed neuroscience studies and treatment of neurological and psychiatric conditions. Discovering less invasive alternatives to deep brain stimulation could expand its clinical and research applications. Nanomaterial-mediated transduction of magnetic fields into electric potentials has been explored as a means for remote neuromodulation. Here we synthesize magnetoelectric nanodiscs (MENDs) with a core–double-shell Fe3O4–CoFe2O4–BaTiO3 architecture (250 nm diameter and 50 nm thickness) with efficient magnetoelectric coupling. We find robust responses to magnetic field stimulation in neurons decorated with MENDs at a density of 1 µg mm−2 despite individual-particle potentials below the neuronal excitation threshold. We propose a model for repetitive subthreshold depolarization that, combined with cable theory, supports our observations in vitro and informs magnetoelectric stimulation in vivo. Injected into the ventral tegmental area or the subthalamic nucleus of genetically intact mice at concentrations of 1 mg ml−1, MENDs enable remote control of reward or motor behaviours, respectively. These findings set the stage for mechanistic optimization of magnetoelectric neuromodulation towards applications in neuroscience research. In this study, the authors present magnetoelectric nanodiscs that enable minimally invasive, remote magnetic neuromodulation with subsecond precision to drive reward and motor behaviours in genetically intact mice.","PeriodicalId":18915,"journal":{"name":"Nature nanotechnology","volume":"20 1","pages":"121-131"},"PeriodicalIF":38.1,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41565-024-01798-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142404903","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}
引用次数: 0
Nanotechnology solutions for the climate crisis 气候危机的纳米技术解决方案
IF 38.1 1区 材料科学
Nature nanotechnology Pub Date : 2024-10-09 DOI: 10.1038/s41565-024-01772-5
Maria Fernanda Campa, Craig M. Brown, Peter Byrley, Jason Delborne, Nicholas Glavin, Craig Green, Mark Griep, Tina Kaarsberg, Igor Linkov, Jeffrey B. Miller, Joshua E. Porterfield, Birgit Schwenzer, Quinn Spadola, Branden Brough, James A. Warren
{"title":"Nanotechnology solutions for the climate crisis","authors":"Maria Fernanda Campa, Craig M. Brown, Peter Byrley, Jason Delborne, Nicholas Glavin, Craig Green, Mark Griep, Tina Kaarsberg, Igor Linkov, Jeffrey B. Miller, Joshua E. Porterfield, Birgit Schwenzer, Quinn Spadola, Branden Brough, James A. Warren","doi":"10.1038/s41565-024-01772-5","DOIUrl":"10.1038/s41565-024-01772-5","url":null,"abstract":"Climate change is one of humankind’s biggest challenges, leading to more frequent and intense climate extremes, including heatwaves, wildfires, hurricanes, ocean acidification, and increased extinction rates. Nanotechnology already plays an important role in decarbonizing critical processes. Still, despite the technical advances seen in the last decades, the International Energy Agency has identified many sectors that are not on track to achieve the global climate mitigation goals by 2030. Here, a multi-stakeholder group of nanoscientists from the public, private, and philanthropic sectors discuss four high-potential application spaces where nanotechnologies could accelerate progress: batteries and energy storage; catalysis; coatings, lubricants, membranes, and other interface technology; and capture of greenhouse gases. This Comment highlights opportunities and current gaps for those working to minimize the climate crisis and provides a framework for the nanotechnology community to answer the call to action on this global issue.","PeriodicalId":18915,"journal":{"name":"Nature nanotechnology","volume":"19 10","pages":"1422-1426"},"PeriodicalIF":38.1,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41565-024-01772-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142385131","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}
引用次数: 0
Rapid precision targeting of nanoparticles to lung via caveolae pumping system in endothelium 通过内皮细胞中的空穴泵系统将纳米粒子快速精确地靶向到肺部
IF 38.1 1区 材料科学
Nature nanotechnology Pub Date : 2024-10-08 DOI: 10.1038/s41565-024-01786-z
Tapas R. Nayak, Adrian Chrastina, Jose Valencia, Oscar Cordova-Robles, Robert Yedidsion, Tim Buss, Brittany Cederstrom, Jim Koziol, Michael D. Levin, Bogdan Olenyuk, Jan E. Schnitzer
{"title":"Rapid precision targeting of nanoparticles to lung via caveolae pumping system in endothelium","authors":"Tapas R. Nayak, Adrian Chrastina, Jose Valencia, Oscar Cordova-Robles, Robert Yedidsion, Tim Buss, Brittany Cederstrom, Jim Koziol, Michael D. Levin, Bogdan Olenyuk, Jan E. Schnitzer","doi":"10.1038/s41565-024-01786-z","DOIUrl":"10.1038/s41565-024-01786-z","url":null,"abstract":"Modern medicine seeks precision targeting, imaging and therapy to maximize efficacy and avoid toxicities. Nanoparticles (NPs) have tremendous yet unmet clinical potential to carry and deliver imaging and therapeutic agents systemically with tissue precision. But their size contributes to rapid scavenging by the reticuloendothelial system and poor penetration of key endothelial cell (EC) barriers, limiting target tissue uptake, safety and efficacy. Here we discover the ability of the EC caveolae pumping system to outpace scavenging and deliver NPs rapidly and specifically into the lungs. Gold and dendritic NPs are conjugated to antibodies targeting caveolae of the lung microvascular endothelium. SPECT-CT imaging and biodistribution analyses reveal that rat lungs extract most of the intravenous dose within minutes to achieve precision lung imaging and targeting with high lung concentrations exceeding peak blood levels. These results reveal how much ECs can both limit and promote tissue penetration of NPs and the power and size-dependent limitations of the caveolae pumping system. This study provides a new retargeting paradigm for NPs to avoid reticuloendothelial system uptake and achieve rapid precision nanodelivery for future diagnostic and therapeutic applications. Reducing scavenging of nanoparticles by the reticuloendothelial system and increasing their penetration through endothelial cell barriers would increase their clinical potential. Here the authors show that small nanoparticles targeting the caveolae of the lung microvascular endothelium are rapidly delivered to the lungs for precision imaging and targeting.","PeriodicalId":18915,"journal":{"name":"Nature nanotechnology","volume":"20 1","pages":"144-155"},"PeriodicalIF":38.1,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142384302","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}
引用次数: 0
Viscous terahertz photoconductivity of hydrodynamic electrons in graphene 石墨烯中流体动力电子的粘性太赫兹光电导性
IF 38.1 1区 材料科学
Nature nanotechnology Pub Date : 2024-10-07 DOI: 10.1038/s41565-024-01795-y
M. Kravtsov, A. L. Shilov, Y. Yang, T. Pryadilin, M. A. Kashchenko, O. Popova, M. Titova, D. Voropaev, Y. Wang, K. Shein, I. Gayduchenko, G. N. Goltsman, M. Lukianov, A. Kudriashov, T. Taniguchi, K. Watanabe, D. A. Svintsov, S. Adam, K. S. Novoselov, A. Principi, D. A. Bandurin
{"title":"Viscous terahertz photoconductivity of hydrodynamic electrons in graphene","authors":"M. Kravtsov, A. L. Shilov, Y. Yang, T. Pryadilin, M. A. Kashchenko, O. Popova, M. Titova, D. Voropaev, Y. Wang, K. Shein, I. Gayduchenko, G. N. Goltsman, M. Lukianov, A. Kudriashov, T. Taniguchi, K. Watanabe, D. A. Svintsov, S. Adam, K. S. Novoselov, A. Principi, D. A. Bandurin","doi":"10.1038/s41565-024-01795-y","DOIUrl":"10.1038/s41565-024-01795-y","url":null,"abstract":"Light incident upon materials can induce changes in their electrical conductivity, a phenomenon referred to as photoresistance. In semiconductors, the photoresistance is negative, as light-induced promotion of electrons across the bandgap enhances the number of charge carriers participating in transport. In superconductors and normal metals, the photoresistance is positive because of the destruction of the superconducting state and enhanced momentum-relaxing scattering, respectively. Here we report a qualitative deviation from the standard behaviour in doped metallic graphene. We show that Dirac electrons exposed to continuous-wave terahertz (THz) radiation can be thermally decoupled from the lattice, which activates hydrodynamic electron transport. In this regime, the resistance of graphene constrictions experiences a decrease caused by the THz-driven superballistic flow of correlated electrons. We analyse the dependencies of the negative photoresistance on the carrier density, and the radiation power, and show that our superballistic devices operate as sensitive phonon-cooled bolometers and can thus offer, in principle, a picosecond-scale response time. Beyond their fundamental implications, our findings underscore the practicality of electron hydrodynamics in designing ultra-fast THz sensors and electron thermometers. Terahertz absorption reduces the viscosity of the hydrodynamic electron fluid in graphene and thereby enables easier flow of electrons. This results in a drop in resistance within graphene constrictions under terahertz radiation, facilitating fast and sensitive terahertz detection.","PeriodicalId":18915,"journal":{"name":"Nature nanotechnology","volume":"20 1","pages":"51-56"},"PeriodicalIF":38.1,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142383634","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}
引用次数: 0
Mesoporous structured MoS2 as an electron transport layer for efficient and stable perovskite solar cells 介孔结构 MoS2 作为电子传输层用于高效稳定的过氧化物太阳能电池
IF 38.1 1区 材料科学
Nature nanotechnology Pub Date : 2024-10-07 DOI: 10.1038/s41565-024-01799-8
Donghwan Koo, Yunseong Choi, Ungsoo Kim, Jihyun Kim, Jihyung Seo, Eunbin Son, Hanul Min, Joohoon Kang, Hyesung Park
{"title":"Mesoporous structured MoS2 as an electron transport layer for efficient and stable perovskite solar cells","authors":"Donghwan Koo, Yunseong Choi, Ungsoo Kim, Jihyun Kim, Jihyung Seo, Eunbin Son, Hanul Min, Joohoon Kang, Hyesung Park","doi":"10.1038/s41565-024-01799-8","DOIUrl":"10.1038/s41565-024-01799-8","url":null,"abstract":"Mesoporous structured electron transport layers (ETLs) in perovskite solar cells (PSCs) have an increased surface contact with the perovskite layer, enabling effective charge separation and extraction, and high-efficiency devices. However, the most widely used ETL material in PSCs, TiO2, requires a sintering temperature of more than 500 °C and undergoes photocatalytic reaction under incident illumination that limits operational stability. Recent efforts have focused on finding alternative ETL materials, such as SnO2. Here we propose mesoporous MoS2 as an efficient and stable ETL material. The MoS2 interlayer increases the surface contact area with the adjacent perovskite layer, improving charge transfer dynamics between the two layers. In addition, the matching between the MoS2 and the perovskite lattices facilitates preferential growth of perovskite crystals with low residual strain, compared with TiO2. Using mesoporous structured MoS2 as ETL, we obtain PSCs with 25.7% (0.08 cm2, certified 25.4%) and 22.4% (1.00 cm2) efficiencies. Under continuous illumination, our cell remains stable for more than 2,000 h, demonstrating improved photostability with respect to TiO2. Mesoporous MoS2 is proposed as an efficient electron transport layer in perovskite solar cells, achieving efficiencies >25% with over 2,000 h of stable operation.","PeriodicalId":18915,"journal":{"name":"Nature nanotechnology","volume":"20 1","pages":"75-82"},"PeriodicalIF":38.1,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142383635","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}
引用次数: 0
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