IF 13.3 2区材料科学

Small Pub Date : 2025-03-31 DOI: 10.1002/smll.202410462

Xiang Li, Yidan Hu, Youyi Ding, Haijun Zhao, Shu Zhu, Junhui Wang, Guangpeng Zhu, Wei Du, Tao Wang

{"title":"Mechanical Stretching Induced Highly Tunable and Reversible Mid-infrared Plasmonic Resonances in a Conductive Polymer Thin Film","authors":"Xiang Li, Yidan Hu, Youyi Ding, Haijun Zhao, Shu Zhu, Junhui Wang, Guangpeng Zhu, Wei Du, Tao Wang","doi":"10.1002/smll.202410462","DOIUrl":"https://doi.org/10.1002/smll.202410462","url":null,"abstract":"Mid-infrared plasmonic resonance enables nanoscale light confinement at mid-infrared frequencies, leading to various applications ranging from compact infrared lasers to biological and chemical sensing. However, upon fabricated, plasmonic resonators normally have a fixed resonance frequency, which limits their application frequency range and hinders the dynamic tuning potential. Here, with the flexible PEDOT:PSS ((poly(ethylenedioxythiophene):poly(styrenesulfonate)) conducting polymer as the plasmonic medium, highly tunable and reversible mid-infrared plasmonic resonances are demonstrated via mechanical stretching. Such plasmonic resonances, based on the stretching-induced grating-type morphology of the PEDOT:PSS thin-film, can be readily tuned across a large mid-infrared frequency range from ≈7500 to 1500 cm−1. In addition, the stretching-induced plasmonic resonances are well reversible in a recovery process and reproducible under 1000 stretching-recovery cycles. Furthermore, the stretching-induced plasmonic resonances also show the mid-infrared chemical sensing ability by enabling surface-enhanced infrared absorption of molecular moieties. The work paves a new way for the active tuning of mid-infrared plasmonic resonances, and will promote the development of flexible mid-infrared plasmonic devices.","PeriodicalId":228,"journal":{"name":"Small","volume":"216 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143737056","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

Gate and Bias Voltage-Modulation Photodetector Based on Cs3Bi2Br9 for Multifunctional Optoelectronic Logic Gate

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-03-31 DOI: 10.1002/adfm.202502415

Xiaoxian Song, Chaoyang Li, Xuanqi Zhong, Ruihuan Zhang, Tianchen Ji, Xun Liu, Wenyao Wu, Haiting Zhang, Liping Liu, Ning Chen, Jingjing Zhang, Zijie Dai, Yunxia Ye, Xudong Ren, Jianquan Yao

{"title":"Gate and Bias Voltage-Modulation Photodetector Based on Cs3Bi2Br9 for Multifunctional Optoelectronic Logic Gate","authors":"Xiaoxian Song, Chaoyang Li, Xuanqi Zhong, Ruihuan Zhang, Tianchen Ji, Xun Liu, Wenyao Wu, Haiting Zhang, Liping Liu, Ning Chen, Jingjing Zhang, Zijie Dai, Yunxia Ye, Xudong Ren, Jianquan Yao","doi":"10.1002/adfm.202502415","DOIUrl":"https://doi.org/10.1002/adfm.202502415","url":null,"abstract":"Optoelectronic logic gates (OELGs) are considered a promising alternative to traditional electronic logic gates, thanks to their high computational speed and low power consumption. Meanwhile, there are enormous challenges including complex structures and single-function. In this study, the optoelectronic logic gate device is prepared merely through a single Cs3Bi2Br9 photodetector. The bidirectional photoresponsive behavior of the device is exhibited under bias voltages and the logic gates of the device are modulated by the change of the current level. The five fundamental OELGs (AND, OR, NOR, NOT, and NAND) are demonstrated successfully by applying a bias voltage of ±1 mV. Moreover, the five OELGs can be modulated by adjusting the gate voltage. To create a multifunctional logic gate array platform, a 5 × 5 array is constructed with 100% accuracy for the five basic OELGs. For practical applications, these logic gate arrays demonstrate great potential in imaging and image logic processing.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"72 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143737168","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

Harnessing triboiontronic Maxwell’s demon by triboelectric-induced polarization for efficient energy-information flow

IF 39.8 1区材料科学

Joule Pub Date : 2025-03-31 DOI: 10.1016/j.joule.2025.101888

Xiang Li, Yu Wei, Xiang Gao, Zhongqiang Zhang, Zhong Lin Wang, Di Wei

{"title":"Harnessing triboiontronic Maxwell’s demon by triboelectric-induced polarization for efficient energy-information flow","authors":"Xiang Li, Yu Wei, Xiang Gao, Zhongqiang Zhang, Zhong Lin Wang, Di Wei","doi":"10.1016/j.joule.2025.101888","DOIUrl":"https://doi.org/10.1016/j.joule.2025.101888","url":null,"abstract":"Maxwell’s demon seemingly violates the second law of thermodynamics, but in reality, it requires external energy for information processing and particle control, thereby ensuring an overall increase in system entropy. Here, triboiontronic Maxwell’s demon was established by triboelectric-induced polarization, enabling remote regulation of charge migration within electrical double layers (EDLs). For energy flow, an enhanced physical-adsorption triboiontronic nanogenerator (EP-TING) achieved a remarkable transferred charge density of 2,347.12 mC/m2, surpassing conventional EDL-based technologies by several orders of magnitude. Furthermore, the advanced synergy-enhanced strategy TING (ES-TING), integrating redox reactions, further increased the charge density to 5,237.51 mC/m2, marking a significant breakthrough in energy conversion efficiency. For information flow, bionic neural circuits utilizing EP-TINGs/ES-TINGs enabled highly portable, interference-resistant underwater transmission systems with minimal energy consumption, effectively addressing challenges of acoustic multipath interference, environmental noise, and severe signal attenuation. Therefore, harnessing triboiontronic Maxwell’s demon provides an efficient energy-information flow, proving crucial in the post-Moore era.","PeriodicalId":343,"journal":{"name":"Joule","volume":"5 1","pages":""},"PeriodicalIF":39.8,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143737271","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

Establishing design principles for functional additives in antimony chalcogenide solar cells

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2025-03-31 DOI: 10.1039/d5ta00947b

Matthew Sutton, Neil Robertson, Tayebeh Ameri

{"title":"Establishing design principles for functional additives in antimony chalcogenide solar cells","authors":"Matthew Sutton, Neil Robertson, Tayebeh Ameri","doi":"10.1039/d5ta00947b","DOIUrl":"https://doi.org/10.1039/d5ta00947b","url":null,"abstract":"Antimony chalcogenide solar cells are a promising thin-film solar technology, offering a tunable bandgap, high intrinsic stability, and a large absorption coefficient. Their solution-processability enables the straightforward incorporation of chemical additives. While many additives have been explored, their underlying chemical mechanisms remain poorly understood. In this study, we examine the chemical mechanism of a proven additive, EDTA, and leverage these insights to develop a screening process for identifying additives that match or surpass its performance. Our findings reveal a dual role of EDTA and similar molecules: (i) Sb3+ chelation, enhancing Sb2S3 film quality, and (ii) pH reduction in the precursor solution, suppressing Sb2O3 formation. Additionally, we propose a chemical mechanism for the in situ conversion of Sb2O3 to Sb2S3. These insights will aid in the rational design of future additives and establish general guidelines for optimizing the growth conditions of efficient antimony chalcogenide solar absorbers under widely used hydrothermal conditions.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"36 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143736806","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

Semi-curing combined with low-pressure mechanical pressing strategy for realizing high adhesion and low surface roughness Ag-NW transparent electrodes

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2025-03-31 DOI: 10.1039/d5ta00523j

Yiwen Du, Mohan Li, Yingying Kang, Ying Sui, Longlong Huang, Hui Wang, Ling Ye, Zhi Yang, Huagui Nie, He Huang, Yongjie Ge

{"title":"Semi-curing combined with low-pressure mechanical pressing strategy for realizing high adhesion and low surface roughness Ag-NW transparent electrodes","authors":"Yiwen Du, Mohan Li, Yingying Kang, Ying Sui, Longlong Huang, Hui Wang, Ling Ye, Zhi Yang, Huagui Nie, He Huang, Yongjie Ge","doi":"10.1039/d5ta00523j","DOIUrl":"https://doi.org/10.1039/d5ta00523j","url":null,"abstract":"Silver nanowire (Ag-NW) transparent electrodes have emerged as a promising next-generation transparent electrode. However, Ag-NW transparent electrodes suffer from poor adhesion and high surface roughness, limiting their practical application and commercialization. Here, we propose a strategy that combines semi-curing with low-pressure mechanical pressing to produce Ag-NW transparent electrodes with enhanced adhesion and reduced surface roughness. Specifically, the Ag-NWs are embedded into a 15 μm-thick semi-cured PDMS adhesive layer, which lacks fluidity but retains intrinsic bonding properties. The lack of fluidity in the semi-cured PDMS layer reduces the likelihood of PDMS entering the NW–NW gap during the embedding process. As a result, compared to the conventional embedding strategy, our approach not only enhances adhesion between the Ag-NWs and the substrate but also imparts excellent optoelectronic properties to the Ag-NW transparent electrode (T = 90%, Rs = 51.5 ohm sq−1). After embedding the Ag-NWs into the semi-cured PDMS adhesive layer, followed by low-pressure pressing (P < 1500 Pa) and complete curing, the Ag-NW transparent electrode with a scratch resistance greater than 6 N and a surface roughness as low as 29.5 nm was obtained.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"183 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143736807","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

Boosting Sensitivity of Cellulose Pressure Sensor via Hierarchically Porous Structure

IF 26.6 1区材料科学

Nano-Micro Letters Pub Date : 2025-03-31 DOI: 10.1007/s40820-025-01718-z

Minzhang Chen, Xiaoni An, Fengyan Zhao, Pan Chen, Junfeng Wang, Miaoqian Zhang, Ang Lu

{"title":"Boosting Sensitivity of Cellulose Pressure Sensor via Hierarchically Porous Structure","authors":"Minzhang Chen, Xiaoni An, Fengyan Zhao, Pan Chen, Junfeng Wang, Miaoqian Zhang, Ang Lu","doi":"10.1007/s40820-025-01718-z","DOIUrl":"10.1007/s40820-025-01718-z","url":null,"abstract":"<div><h2>Highlights</h2><div>\u0000 \u0000 <ul>\u0000 <li>\u0000 The study introduces a high-performance cellulose hydrogel (HPCH) with a biomimetic layered porous structure inspired by human skin, combining a soft layer with large macropores and a hard layer with small micropores. This unique design enhances both sensitivity and mechanical performance in pressure-sensing applications.\u0000 </li>\u0000 <li>\u0000 The HPCH sensor demonstrates exceptional pressure sensitivity of 1622 kPa⁻1, a wide detection range of up to 160 kPa, and excellent conductivity of 4.01 S m−1. Ion immersion further optimizes the hydrogel’s conductivity and dielectric properties, offering superior performance compared to existing cellulose-based sensors.\u0000 </li>\u0000 <li>\u0000 The sensor’s outstanding performance in health monitoring, industrial diagnostics, and pressure distribution detection positions it as a versatile, durable, and highly sensitive solution for various pressure-sensing applications, providing a promising path for natural polymer-based sensing technologies.\u0000 </li>\u0000 </ul>\u0000 </div></div>","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":""},"PeriodicalIF":26.6,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-025-01718-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143736874","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

Wettability of Chemically Heterogeneous Clay Surfaces: Correlation between Surface Defects and Contact Angles as Revealed by Machine Learning

IF 9.5 2区材料科学

ACS Applied Materials & Interfaces Pub Date : 2025-03-31 DOI: 10.1021/acsami.4c20587

Gabriel D. Barbosa, Khang Quang Bui, Dimitrios V. Papavassiliou, Sepideh Razavi, Alberto Striolo

{"title":"Wettability of Chemically Heterogeneous Clay Surfaces: Correlation between Surface Defects and Contact Angles as Revealed by Machine Learning","authors":"Gabriel D. Barbosa, Khang Quang Bui, Dimitrios V. Papavassiliou, Sepideh Razavi, Alberto Striolo","doi":"10.1021/acsami.4c20587","DOIUrl":"https://doi.org/10.1021/acsami.4c20587","url":null,"abstract":"Quantifying the wettability of clay surfaces and how it changes in the presence of gas mixtures is crucial for designing geo-energy applications such as underground hydrogen storage and carbon capture and sequestration. While computational studies exist for the wettability of atomically perfect mineral substrates, actual minerals possess heterogeneities. This study employs molecular dynamics simulations to examine the impact of surface defects on the wettability of kaolinite surfaces exposed to hydrogen, methane, and carbon dioxide. The results show that siloxane surfaces become more hydrophilic as defect densities increase and that the gases can strongly affect wettability. Carbon dioxide, in particular, shows stronger adsorption on heterogeneous surfaces than hydrogen and methane. As a consequence, carbon dioxide can strongly affect wettability. Additionally, our results show that higher salt concentrations reduce water contact angle, which is important because salt is likely present in the subsurface. A machine learning classification algorithm is applied to interpret the results and develop predictive capabilities. Our findings highlight the importance of surface defects on wettability, which is essential for designing geological repositories for geo-energy applications ranging from enhanced gas recovery to carbon sequestration and intermittent hydrogen storage.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"36 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143744716","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

Optimized active structure configuration of the MOF Derived Cu-based catalysts via different atmospheres for selective CO2 hydrogenation

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2025-03-31 DOI: 10.1016/j.apsusc.2025.163134

Fenghai Cao, Junhao Liu, Kaizhuang Xu, Yu Tang, Lizhi Wu, Peng Wang, Li Tan

{"title":"Optimized active structure configuration of the MOF Derived Cu-based catalysts via different atmospheres for selective CO2 hydrogenation","authors":"Fenghai Cao, Junhao Liu, Kaizhuang Xu, Yu Tang, Lizhi Wu, Peng Wang, Li Tan","doi":"10.1016/j.apsusc.2025.163134","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163134","url":null,"abstract":"Significant progress has been evidenced in the development of the synergistic effect of the various active sites for selective catalyzing CO2 hydrogenation toward the target product. Unveiling the roles of different active sites is conducive to understanding the structure–activity relationship in complex reactions. In this study, the pretreatment atmosphere plays a pivotal role in modulating active site properties. The optimized Ar-pretreated Cu-UiO-66-Ar catalyst shows a high methanol space–time yield of 733 μmol gcat.−1h−1 at 200 °C, 3.0 MPa, which is 2.7 times than that of H2-pretreated Cu-UiO-66-H2 catalyst (274 μmol gcat.−1h−1). We revealed the interface (Cu–O–Zr sites) and Cu nanoparticles (Cu–Cu sites) co-play a pivotal role in promoting CO2 conversion and H2 dissociation via Cu–Cu sites feeds H* to Cu–O–Zr-anchored CO*/HCO* species. Rational contrast experiments of the in-situ DRIFTS highlight the accelerated elementary steps in the CO2 conversion process contact with the enhanced catalytic activity. Thus, this work is helpful to advance the understanding of the potential mechanism in a composite cross-reaction network.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"75 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745208","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

Band tilt with enhanced charge separation induced by Nb-doped piezoelectric to boost photocatalysis

IF 17.6 1区材料科学

Nano Energy Pub Date : 2025-03-31 DOI: 10.1016/j.nanoen.2025.110929

Weiguang Han, Xiaodong Zhang, Hui Li, Yang Fu, Boxiong Shen, Sheng-Qi Guo, Tianyi Ma

{"title":"Band tilt with enhanced charge separation induced by Nb-doped piezoelectric to boost photocatalysis","authors":"Weiguang Han, Xiaodong Zhang, Hui Li, Yang Fu, Boxiong Shen, Sheng-Qi Guo, Tianyi Ma","doi":"10.1016/j.nanoen.2025.110929","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.110929","url":null,"abstract":"Activating the inherent piezoelectric effect of materials as an auxiliary driving force for photocatalytic performance is considered a reliable approach for developing a new generation of efficient photocatalytic systems, but research on modification strategies for optimizing piezoelectric performance is still in its infancy. In this work, we developed Nb-doped NaNbO3 (N-NNO-4) piezoelectric based on self-doping strategy. Under the combined action of ultrasonic vibration and solar light irradiation, N-NNO-4 can generate high concentrations of hydroxyl radicals (•OH) in water environment, thereby achieving excellent oxidation performance. N-NNO-4 exhibits excellent piezo-photocatalytic performance in water pollution control applications. The reaction kinetic coefficients of its use as a piezo-photocatalyst for purifying common plasticizers dimethyl phthalate are 8.5 times and 6.8 times those of its use as a photocatalyst and piezocatalyst, respectively, and 17 times that of undoped NaNbO3 (NNO) piezo-photocatalyst. Mechanism analysis shows that the excellent piezo-photocatalytic performance is not only attributable to the efficient charge separation efficiency induced by Nb-doped and the improved charge transfer ability, but also originate from the synergistic effect of band tilt caused by piezoelectric effect and efficient activation of interface H2O caused by Nb-doped. The synergistic effect opens up new channels for •OH generation and significantly intensifies the formation of •OH. The present study explores the feasibility of constructing an efficient piezoelectric photocatalytic system based on self-doping strategy, providing theoretical reference and experimental basis for utilizing green energy in nature to achieve sustainable environmental protection and development.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"38 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745250","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

Exploiting Spintronics at Room Temperature for Long-Wave Infrared Nanophotonic Digital Bolometers

IF 10.8 1区材料科学

Nano Letters Pub Date : 2025-03-31 DOI: 10.1021/acs.nanolett.4c05925

Leif Bauer, Angshuman Deka, Mohamed A. Mousa, Sakshi Gupta, Daien He, Sijay Huang, Bhagwati Prasad, Tiffany Santos, Biswajit Ray, Zubin Jacob

{"title":"Exploiting Spintronics at Room Temperature for Long-Wave Infrared Nanophotonic Digital Bolometers","authors":"Leif Bauer, Angshuman Deka, Mohamed A. Mousa, Sakshi Gupta, Daien He, Sijay Huang, Bhagwati Prasad, Tiffany Santos, Biswajit Ray, Zubin Jacob","doi":"10.1021/acs.nanolett.4c05925","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c05925","url":null,"abstract":"Digital detectors that “click” such as avalanche diodes and superconducting nanowire sensors are widely used in visible and near-infrared frequencies within the fields of quantum communications, imaging and metrology. On the other hand, the vast field of infrared bolometry has been dominated by analog detectors barring a few examples which require extremely challenging low temperature environments. Here, we propose and demonstrate a nanophotonic bolometer designed by engineering spintronic materials and dimensions to provide “clicks” from thermally activated transitions between two discrete magnetization states. We demonstrate that this nanophotonic bolometer is capable of high readout speeds of 91.6 MHz, which is faster than commercial vanadium dioxide detectors, and a noise equivalent temperature difference of ∼103 mK at 25 Hz. Further improvements to optical and thermal coupling are expected to push the sensitivity beyond even state-of-the-art cooled imagers paving the way for a new class of high-speed room temperature infrared sensors.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"23 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143736863","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

材料科学最新文献