IF 17.6 1区材料科学

Nano Energy Pub Date : 2025-04-30 DOI: 10.1016/j.nanoen.2025.111093

Yulong Liu, Hongbing Li, Jianan Wei, Wei Feng, Biao Tu, Wenjun Peng, Ziming Chen, Linxiang Zeng, Yaohua Mai, Fei Guo

{"title":"Retarding Crystallization for High-Quality Printable All-FA-Based Sn-Pb Perovskite Thin-Films and All-Perovskite Tandem Photovoltaic Devices","authors":"Yulong Liu, Hongbing Li, Jianan Wei, Wei Feng, Biao Tu, Wenjun Peng, Ziming Chen, Linxiang Zeng, Yaohua Mai, Fei Guo","doi":"10.1016/j.nanoen.2025.111093","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.111093","url":null,"abstract":"Improving the intrinsic stability of Tin-Lead (Sn-Pb) perovskite is of great significance to extend their lifetime of the solar devices. However, the presence of a considerable amount of volatile MA<sup>+</sup> species in the advanced Sn-Pb perovskite films constrains their stability. Here, we report scalable blade coating high-quality all-FA-based Sn-Pb perovskite thin films by incorporating the precursor a small amount of thiosemicarbazide hydrochloride (TH). It is found that TH molecules not only suppress oxidation of Sn<sup>2+</sup>, thereby reducing electronic defects, but more importantly, retard crystallization process, which effectively eliminates the macroscopic defects at the buried interface. The combination of these two merits allows to produce high-quality all-FA-based Sn-Pb perovskites with significantly reduced nonradiative recombination, alongside marked improved intrinsic thermal stability. Eventually, the open-circuit voltage of the best-performing all-FA Sn-Pb solar devices rises from 801 to 856 mV, yielding a high efficiency of 20.16%. Mini-modules with active area of 2.048 and 11.28 cm<sup>2</sup> realize efficiencies of 19.02% and 18.37%, respectively. As well, the all-perovskite tandem devices are constructed, delivering a state-of-the-art high efficiency of 26.23%.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"8 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143890289","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

Comprehensive effects of isomeric doping on electrospun PVDF films: Towards smart wiper systems enabled by piezoelectric nanogenerators and machine learning 静电纺PVDF薄膜的异构体掺杂综合效应：基于压电纳米发电机和机器学习的智能雨刷系统

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-04-30 DOI: 10.1016/j.nanoen.2025.111094

Zixuan Chen , Huancheng Yang , Huijie Yu , Tianyu Yu , Litao Liu , Yao Lu , Wenchao Gao

{"title":"Comprehensive effects of isomeric doping on electrospun PVDF films: Towards smart wiper systems enabled by piezoelectric nanogenerators and machine learning","authors":"Zixuan Chen , Huancheng Yang , Huijie Yu , Tianyu Yu , Litao Liu , Yao Lu , Wenchao Gao","doi":"10.1016/j.nanoen.2025.111094","DOIUrl":"10.1016/j.nanoen.2025.111094","url":null,"abstract":"<div><div>Piezoelectric nanogenerators (PENG) face limitations due to the singularity of material doping strategies, hindering their ability to meet the requirements of complex application scenarios. Herein, isomerism of polyaniline (PANi) and halloysite nanotubes (HNT) were synthesized via oxidative polymerization to systematically explore the modulation mechanisms affecting the properties of electrospun PVDF films. The hybrid structure of PANi/HNT doping maintained the tensile strength (15.8 MPa) enhancement effect of HNT on the polymer matrix, while the high conductivity of PANi contributed to a denser surface morphology of the films. However, agglomeration persists, and the improvement in the piezoelectric properties of PVDF remains limited. In contrast, the encapsulated structure of PANi@HNT doping offered only a modest improvement in mechanical properties. However, improved compatibility with the matrix led to excellent filler dispersion, and the increased number of nucleation sites raised the β-phase content of PVDF to 91.71 %. The highly sensitive PENG exhibits an open-circuit voltage (V<sub>OC</sub>) of 81 V and a short-circuit current (I<sub>SC</sub>) of 8.36 μA. The smart wiper system, developed through integration with machine learning and microcontroller unit (MCU), achieves accurate rainfall recognition and real-time response, offering a novel approach for PENG applications in smart sensing.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"141 ","pages":"Article 111094"},"PeriodicalIF":16.8,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143893822","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

Robust self-encapsulated fiber integrated with rescue robots for environmental information collection 与环境信息采集救援机器人集成的鲁棒自封装光纤

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-04-29 DOI: 10.1016/j.nanoen.2025.111092

Qi Kong , Saihua Jiang , Chaokang Liufu , Jiaqi Cheng , Peiyun Qiu

{"title":"Robust self-encapsulated fiber integrated with rescue robots for environmental information collection","authors":"Qi Kong , Saihua Jiang , Chaokang Liufu , Jiaqi Cheng , Peiyun Qiu","doi":"10.1016/j.nanoen.2025.111092","DOIUrl":"10.1016/j.nanoen.2025.111092","url":null,"abstract":"<div><div>In recent years, individuals operating in extreme environments have encountered challenges such as high accident rates and low work efficiency. The integration of embodied intelligence technology with flexible sensors is expected to provide a novel problem-solving approach. In this study, liquid metal (LM) was incorporated into polydimethylsiloxane (PDMS) to reduce the surface tension of LM, resulting in the formation of a highly conductive and flexible PDMS-LM ink (PLM ink). Utilizing coaxial printing technology, PLM was embedded within room-temperature-vulcanized single-component silicone rubber (RTVS), forming a self-encapsulated structure that enables the coaxial fibers with excellent electrical conductivity and mechanical properties. By integrating triboelectric nanogenerator (TENG) technology, the sensor demonstrated remarkable sensitivity (4.03 V<span><math><mo>∙</mo></math></span>kPa⁻¹), rapid response time (23 ms), and outstanding durability (exceeding 10,000 cycles). Furthermore, the sensor's excellent interfacial compatibility and environmental adaptability enable seamless integration into robotic systems, achieving 100 % accuracy in object shape recognition and 98.3 % accuracy in material recognition using artificial convolutional neural networks. Finally, the integration of the sensor with a miniature robotic system enabled the real-time perception of environmental information (road surface smoothness, obstacles) under harsh operating conditions, highlighting its potential for robotic systems operating in extreme environments.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"141 ","pages":"Article 111092"},"PeriodicalIF":16.8,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143885049","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 Triboelectric Performance of Natural Friction Materials from Traditional Chinese Herbs Repository 中药材库天然摩擦材料的摩擦电性能研究

IF 17.6 1区材料科学

Nano Energy Pub Date : 2025-04-29 DOI: 10.1016/j.nanoen.2025.111088

Huirun Fan, Puchuan Tan, Yuan Bai, Yuan Xi, Engui Wang, Ming Yin, Xiaozhou Wen, Teng Li, Jiangtao Xue, Yang Zou, Zhou Li, Yang Wang

{"title":"The Triboelectric Performance of Natural Friction Materials from Traditional Chinese Herbs Repository","authors":"Huirun Fan, Puchuan Tan, Yuan Bai, Yuan Xi, Engui Wang, Ming Yin, Xiaozhou Wen, Teng Li, Jiangtao Xue, Yang Zou, Zhou Li, Yang Wang","doi":"10.1016/j.nanoen.2025.111088","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.111088","url":null,"abstract":"Triboelectric nanogenerator (TENG) is a highly efficient and environmentally friendly energy harvesting technology that has been widely used as a green self-powered energy supply device. However, the majority of current triboelectric materials rely on non-degradable polymers, which pose environmental issues. Natural materials offer advantages such as low cost and environmental friendliness, making them ideal candidates for the fabrication of green TENG. Considering the underutilization and significant waste of traditional Chinese herbs (TCH) resources, we design a traditional Chinese herbs-based triboelectric nanogenerator (TCH-TENG) and systematically investigates the triboelectric series of 20 kinds of TCHs. Among them, cinnabar exhibited the highest triboelectric performance, with an peak open-circuit Voltage (Voc) reaching 4.4 V and a peak short-circuit current (Isc) of 399 nA. TCH-TENG serves as a power source, successfully driving a set of commercial lights arrays and also achieving electrical stimulation of mice to induce gastrocnemius muscle contraction. This study combines the natural properties of herbs with TENG technology to propose a low-cost energy harvesting system, offering a novel solution for self-powered technologies in green energy.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"91 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143890205","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

Multispectral-Responsive MXene Nanolayer Energy-Saving Windows for High-Absorption Electromagnetic Interference Shielding 用于高吸收电磁干扰屏蔽的多光谱响应MXene纳米层节能窗口

IF 17.6 1区材料科学

Nano Energy Pub Date : 2025-04-28 DOI: 10.1016/j.nanoen.2025.111079

引用次数: 0

Construction of high-throughput interface phase using boron containing anions to regulate solvation structure and achieve high-performance sodium metal batteries 利用含硼阴离子构建高通量界面相调节溶剂化结构，实现高性能金属钠电池

IF 17.6 1区材料科学

Nano Energy Pub Date : 2025-04-28 DOI: 10.1016/j.nanoen.2025.111083

Zihao Yang, Jiajie Pan, Hao Wu, Kaixiang Shi, Zikang Chen, Junhao Li, Wenzhi Huang, Tianxiang Yang, Yun Hong, Rui Zhang, Zhouguang Lu, Jongmin Li, Quanbing Liu

{"title":"Construction of high-throughput interface phase using boron containing anions to regulate solvation structure and achieve high-performance sodium metal batteries","authors":"Zihao Yang, Jiajie Pan, Hao Wu, Kaixiang Shi, Zikang Chen, Junhao Li, Wenzhi Huang, Tianxiang Yang, Yun Hong, Rui Zhang, Zhouguang Lu, Jongmin Li, Quanbing Liu","doi":"10.1016/j.nanoen.2025.111083","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.111083","url":null,"abstract":"The commercialization of sodium metal batteries (SMBs) remains challenging due to the instability of the solid electrolyte interphase (SEI) and cathode electrolyte interphase (CEI), resulting in rapid capacity degradation under harsh cycling conditions. In this paper, a novel electrolyte additive, sodium difluoro-oxalate borate (NaDFOB), was developed to address these challenges. NaDFOB effectively improved the stability of the SEI/CEI by forming a solid electrolyte interphase enriched in NaF and B<sub>2</sub>O<sub>3</sub>. This modification was shown to significantly inhibit cathodic transition metal leaching and anodic sodium dendrite growth. The capacity retention of Hard Carbon (HC) || NaNi<sub>0.33</sub>Fe<sub>0.33</sub>Mn<sub>0.33</sub>O<sub>2</sub> (NFM) cylindrical battery containing BE-NaDFOB electrolyte was 94.1% after 1000 cycles of charging and discharging at 0.5 C. The electrolyte with BE-NaDFOB electrolyte is capable of stable operation at –40 <sup>o</sup>C~60 <sup>o</sup>C in Na || NFM batteries. This work explained the effect of the introduction of the additive NaDFOB on the solvation structure of the bulk electrolyte, the decomposition mechanism of NaDFOB that formed a uniform solid electrolyte interface film (CEI/SEI) on the surface of the anode and cathode, and the rapid desolvation of sodium ions. The rapid desolvation of sodium ions contributed to the formation of a high-flux SEI (Refers to the movement and distribution of sodium ions at the solid-state incremental electrolyte (SEI) during deposition or stripping).","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"15 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143885055","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

Zincophilic/hydrophobic balanced binder enables highly stable Zn powder anode toward flexible zinc-ion batteries 亲锌/疏水平衡粘结剂为柔性锌离子电池提供了高度稳定的锌粉阳极

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-04-28 DOI: 10.1016/j.nanoen.2025.111090

Pengyang Lei , Jianli Cheng , Xilin Wang , Ruixin Zheng , Junxiang Zhang , Xiaorui Wang , Mengmeng Yang , Bin Wang

{"title":"Zincophilic/hydrophobic balanced binder enables highly stable Zn powder anode toward flexible zinc-ion batteries","authors":"Pengyang Lei , Jianli Cheng , Xilin Wang , Ruixin Zheng , Junxiang Zhang , Xiaorui Wang , Mengmeng Yang , Bin Wang","doi":"10.1016/j.nanoen.2025.111090","DOIUrl":"10.1016/j.nanoen.2025.111090","url":null,"abstract":"<div><div>Zinc powder-based anodes are considered ideal candidates for flexible aqueous zinc-ion batteries (AZIBs) due to their tunability and scalability. However, the large surface area and intrinsic spherical morphology of zinc powder lead to increased side reactions and uncontrolled dendrite growth. This work proposes a groundbreaking binder design strategy that balances zincophilicity and hydrophobicity to achieve kinetically enhanced and thermodynamically stable Zn powder anodes. The strategy has been validated through diversified binder combinations, which create a balanced localized water (H<sub>2</sub>O)-poor environment and incorporates zincophilic groups to effectively block water penetration onto zinc while allowing Zn<sup>2 +</sup> conduction without compromising weight, volume, or cost. Consequently, Zn//Zn symmetric cells with zincophilic/hydrophobic balanced binder demonstrate stable cycling for 1600 hours at 1 mA cm<sup>−2</sup>, 900 hours at 5 mA cm<sup>−2</sup>, and even 220 hours at a high utilization rate of 50 % (6.6 mAh cm<sup>−2</sup>). Notably, a 10 × 10 cm<sup>2</sup> free-standing Zn powder electrode is fabricated exhibiting exceptional deformability and mechanical robustness due to the high ductility of the balanced binder. This characteristic allows the flexible ZnP//MnO<sub>2</sub> full battery to maintain stable capacity under various bending conditions. This work offers both theoretical and experimental insights into the development of high-performance binders for flexible AZIBs.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"141 ","pages":"Article 111090"},"PeriodicalIF":16.8,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143885051","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

Ultra-stabilized Cu2 + sites in conductive MOF/t-Cu2O interface for benchmark CO2 reduction 导电MOF/t-Cu2O界面超稳定Cu2+位用于基准CO2还原

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-04-28 DOI: 10.1016/j.nanoen.2025.111077

Jie Meng , Ying Wang , Chen Jia , Ze-Lin Ma , Li-Ting Yan , Ru-Tao Wang , Li-Yang Shao , Peng Zhang , Wen-Yu Yuan , Xue-Bo Zhao , Chuan Zhao , Quan-Guo Zhai

{"title":"Ultra-stabilized Cu2 + sites in conductive MOF/t-Cu2O interface for benchmark CO2 reduction","authors":"Jie Meng , Ying Wang , Chen Jia , Ze-Lin Ma , Li-Ting Yan , Ru-Tao Wang , Li-Yang Shao , Peng Zhang , Wen-Yu Yuan , Xue-Bo Zhao , Chuan Zhao , Quan-Guo Zhai","doi":"10.1016/j.nanoen.2025.111077","DOIUrl":"10.1016/j.nanoen.2025.111077","url":null,"abstract":"<div><div>Developing and retaining the highly charged copper (Cu) site during electrochemical CO<sub>2</sub> reactions (CO<sub>2</sub>RR) is critical but challenging. Herein, ultrastable Cu<sup>2+</sup> sites in conductive metal-organic framework (cMOF)/t-Cu<sub>2</sub>O heterostructure are reported to boost the selectivity and stability for CO<sub>2</sub>RR towards C2 products. Due to the epitaxial conjugated cMOF with strong electron acceptor property, the accumulation of electrons is evacuated during CO<sub>2</sub>RR timely, tightly confining and protecting the highly charged Cu<sup>2+</sup> site at the cMOF/t-Cu<sub>2</sub>O interface. <em>In-situ</em> spectra and theoretical calculations verify that Cu<sup>2+</sup> sites at the interface facilitate a more favorable hydrogenated route from *COH to *CO*COH with the low-energy pathway. <em>Semi-situ</em> X-ray absorption spectroscopy and high-angle annular dark-field imaging confirm the ultra-long stability of the highly charged Cu<sup>2+</sup> sites during CO<sub>2</sub>RR. Optimized cMOF/t-Cu<sub>2</sub>O achieves significant Faradaic efficiency (FE) for C2 products of 79.3 % with current density of −440 mA·cm<sup>−2</sup> and demonstrates ultra-long stability over 40 hours in flow cell, which is superior to nearly all reported MOFs and Cu<sub>2</sub>O-based catalysts, ranking it one of the best-performing Cu-based catalysts.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"141 ","pages":"Article 111077"},"PeriodicalIF":16.8,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880892","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

Amorphous interface-controlled discharge product formation: A pathway to high-performance lithium-oxygen batteries 非晶界面控制放电产物形成：高性能锂氧电池的途径

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-04-28 DOI: 10.1016/j.nanoen.2025.111086

Yongji Xia , Sicheng Fan , Xuefeng Jin , Le Wang , Sheng Lin , Jian Yan , Jiajia Han , Zhaoju Yu , Dong-Liang Peng , Guanghui Yue

{"title":"Amorphous interface-controlled discharge product formation: A pathway to high-performance lithium-oxygen batteries","authors":"Yongji Xia , Sicheng Fan , Xuefeng Jin , Le Wang , Sheng Lin , Jian Yan , Jiajia Han , Zhaoju Yu , Dong-Liang Peng , Guanghui Yue","doi":"10.1016/j.nanoen.2025.111086","DOIUrl":"10.1016/j.nanoen.2025.111086","url":null,"abstract":"<div><div>Lithium-oxygen batteries (LOBs) can afford high-energy density storage, yet their commercialization is hindered by sluggish redox kinetics. To address this issue, we successfully constructed a self-supporting crystalline NiCo<sub>2</sub>O<sub>4</sub> (NCO)/amorphous Ni<sub>x</sub>P (NP) heterostructure (c/a) catalyst using a two-step electrodeposition strategy. This innovative design introduces a disordered amorphous structure, providing abundant active sites and accelerating ion diffusion. Density functional theory (DFT) calculations demonstrate that the c/a heterostructure remarkably reduces the work function and adjusts the Fermi level, thereby weakening the adsorption energy of LiO<sub>2</sub>. This modulation allows LiO<sub>2</sub> to diffuse into the electrolyte, facilitating the growth of pie-like Li<sub>2</sub>O<sub>2</sub> through a solution mechanism. In-situ electrochemical impedance spectroscopy (EIS) and distribution of relaxation times (DRT) experimental data confirm that the discharge products formed under this mechanism exhibit excellent formation and decomposition efficiencies. As a result, the NCO/NP cathode demonstrates an ultra-long cycling performance (719 cycles) and an ultra-low charge-discharge overpotential (0.5 V). Our findings provide a novel strategy for designing high-performance cathodes by manipulating the formation mechanism of Li<sub>2</sub>O<sub>2</sub>, highlighting the potential of c/a heterostructures in advancing the efficiency and stability of LOBs.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"141 ","pages":"Article 111086"},"PeriodicalIF":16.8,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880857","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

Sequential surface tailoring from colloid to solid in Ag2Te colloidal quantum dots enables high hole mobility and efficient shortwave infrared photodetection Ag2Te胶体量子点从胶体到固体的连续表面剪裁实现了高空穴迁移率和高效的短波红外光探测

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-04-28 DOI: 10.1016/j.nanoen.2025.111091

Abhishek Sharma , Doheon Yoo , Ha-Neul Kim , Min-Jae Choi

{"title":"Sequential surface tailoring from colloid to solid in Ag2Te colloidal quantum dots enables high hole mobility and efficient shortwave infrared photodetection","authors":"Abhishek Sharma , Doheon Yoo , Ha-Neul Kim , Min-Jae Choi","doi":"10.1016/j.nanoen.2025.111091","DOIUrl":"10.1016/j.nanoen.2025.111091","url":null,"abstract":"<div><div>Silver telluride (Ag<sub>2</sub>Te) colloidal quantum dots (CQDs) are promising semiconducting materials for infrared detection due to their environmentally friendly composition and tunable optical bandgap in the shortwave infrared region. However, a limited understanding of surface chemistry in Ag<sub>2</sub>Te CQDs compared to conventional II-VI and IV-VI CQD systems has hindered advancements in device performance. In this study, we present sequential surface tailoring of Ag<sub>2</sub>Te CQDs to achieve high-mobility CQD solids. This approach involves the use of a co-ligand system during colloidal synthesis to enhance ligand density and improve surface passivation, followed by iodide solid-state ligand exchange to fabricate all-inorganic Ag<sub>2</sub>Te CQD solids. As a result, the CQD solids exhibited the highest hole mobility of 3.78 cm<sup>2</sup> V<sup>−1</sup> s<sup>−1</sup> among reported CQD solids. Furthermore, the enhanced carrier mobility, combined with the reduced dark current of these CQD solids, enabled photodetectors to achieve a responsivity of 27.6 mA/W under 1550 nm irradiation.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"141 ","pages":"Article 111091"},"PeriodicalIF":16.8,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143885053","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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