Nanotechnology最新文献_第8页

Electrochemical synthesis and supercapacitor performance of manganese and cerium oxide-doped polyaniline composites. 锰铈掺杂聚苯胺复合材料的电化学合成及其超级电容器性能。

IF 2.9 4区材料科学

Nanotechnology Pub Date : 2025-05-06 DOI: 10.1088/1361-6528/add01e

Hilal Yildirim Kalyon, Yakup Fatih Karasan, Metin Gencten

引用次数: 0

Bulk synthesis of mixed transition metal dichalcogenide and performance as working electrode in Li, Na, and K-ion half cells. 混合过渡金属二硫化物的体合成及其在Li， Na和k离子半电池中作为工作电极的性能。

IF 2.9 4区材料科学

Nanotechnology Pub Date : 2025-04-30 DOI: 10.1088/1361-6528/adcf30

Arijit Roy, Gurpreet Singh

{"title":"Bulk synthesis of mixed transition metal dichalcogenide and performance as working electrode in Li, Na, and K-ion half cells.","authors":"Arijit Roy, Gurpreet Singh","doi":"10.1088/1361-6528/adcf30","DOIUrl":"https://doi.org/10.1088/1361-6528/adcf30","url":null,"abstract":"Nanosheets of mixed or cation-substituted Transition metal dichalcogenide (TMD) are promising materials for a range of applications, including electrodes for electrochemical energy storage devices. Yet such materials are expensive to produce in large quantities (gram levels or higher). Here, we report on a two-step process, which involves precursor pyrolysis and sulfur annealing for the preparation of bulk powders of MoxW1-xS2. The structural and morphological properties of the synthesized cation-substituted TMD alloy are compared with high-purity commercially sourced MoWS2and MoS2/WS2hybrid specimens. Notably, the electrochemical characteristics of synthesized MoxW1-xS2exhibit exceptional first-cycle specific charge capacities for lithium-ion (638 mAh g-1), sodium-ion (423 mAh g-1), and potassium-ion (328 mAh g-1) half-cells. All the cells showed capacity decay in longer-term cycling tests, arising from volume changes in TMD conversion-type electrodes. To mitigate the capacity decay, a voltage cut-off method is implemented, which minimizes irreversibility and structural distortion of TMD during cycling, even at higher cycling currents with nearly 100% average cycling efficiency. The findings of this study demonstrate a proficient and scalable synthesis methodology poised to be utilized across an array of layered TMD materials, with benefits to both industry and fundamental research into alkali-metal-ion energy storage.","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":"36 21","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144003343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Multisynergistic antibacterial and anti-inflammatory effects of silver-anchored polydopamine nanocomposites hydrogel on periodontitis. 银锚定聚多巴胺纳米复合水凝胶对牙周炎的多协同抗菌和抗炎作用。

IF 2.9 4区材料科学

Nanotechnology Pub Date : 2025-04-30 DOI: 10.1088/1361-6528/adcf2f

Rui Ruan, Qiaoxin Li, Xinglong Zhang, Zihan Dai, Wei Qiang, Mengdie Ji, Mengjie Liu, Jian Chen, Hongda Zhu

{"title":"Multisynergistic antibacterial and anti-inflammatory effects of silver-anchored polydopamine nanocomposites hydrogel on periodontitis.","authors":"Rui Ruan, Qiaoxin Li, Xinglong Zhang, Zihan Dai, Wei Qiang, Mengdie Ji, Mengjie Liu, Jian Chen, Hongda Zhu","doi":"10.1088/1361-6528/adcf2f","DOIUrl":"https://doi.org/10.1088/1361-6528/adcf2f","url":null,"abstract":"Conventional treatment modalities for periodontitis are less effective in removing bacterial plaques and biofilms, which tend to induce an inflammatory microenvironment in periodontal tissue and lead to disease progression. To overcome this limitation, we designed a silver-anchored polydopamine (PDA) nanocomposites hydrogel system (P-Ag@PDA gels, ∼200 nm) for multisynergistic treatment of periodontitis. PDA nanoparticles could synergize with silver to exert powerful bactericidal activity and reduce tissue damage caused by reactive oxygen species (ROS) or inflammatory factors. Meanwhile, the low-temperature photothermal process facilitated the penetration of nanoparticles into the bacterial biofilm, solving the challenge of biofilm removal in periodontitis. Poloxamer 407 thermosensitive hydrogel helped the nanocomposites adhere to the bacterial surface, overcoming the problem of reduced efficacy due to the rapid loss of the drug in the oral cavity. The antibacterial, biofilm scavenging, ROS scavenging and anti-inflammatory properties of P-Ag@PDA gels were investigatedin vitro and in vivo. The results revealed that P-Ag@PDA gels with NIR light stimulation were more effective than tinidazole (TNZ) in attenuating ROS-induced periodontal tissue damage and removing biofilms, while exhibiting similar antimicrobial effects. This study provided a highly promising biomaterial for the treatment of periodontal infections.","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":"36 21","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144064270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Balancing light-trapping and defect minimization in ultrathin amorphous silicon solar cells using dualp-layer architecture. 利用双层结构平衡超薄非晶硅太阳能电池的光捕获和缺陷最小化。

IF 2.9 4区材料科学

Nanotechnology Pub Date : 2025-04-30 DOI: 10.1088/1361-6528/adcf2d

Niveditha Nair, Anjitha M Pillai, Rita Rizzoli, Harish Lakhotiya, Arne Nylandsted Larsen, Peter Balling, Sanjay K Ram

{"title":"Balancing light-trapping and defect minimization in ultrathin amorphous silicon solar cells using dualp-layer architecture.","authors":"Niveditha Nair, Anjitha M Pillai, Rita Rizzoli, Harish Lakhotiya, Arne Nylandsted Larsen, Peter Balling, Sanjay K Ram","doi":"10.1088/1361-6528/adcf2d","DOIUrl":"https://doi.org/10.1088/1361-6528/adcf2d","url":null,"abstract":"Ultrathin solar cell devices based on amorphous silicon offer significant advantages in terms of cost and stability, provided they are effectively integrated with light-trapping strategies. However, integrating these devices with photonic nanotextures is challenging due to the high defect concentrations that may result from the deposition of ultrathin material layers on textured substrates. This study utilizes a cost-effective, scalable approach using quasiperiodic nanowrinkles as textured substrates for ultrathin amorphous silicon solar cells fabricated in ap-i-nconfiguration, with a 100 nm absorber layer. To enhance the performance on the nanowrinkles, a dualp-layer architecture, comprising a thin hydrogenated amorphous silicon protective layer combined with a nanocrystallinep-type layer is employed. These nanowrinkle solar cell devices show significant improvements, up to ∼33%, in power conversion efficiency compared to their flat substrate counterparts. The dualp-layer approach is effective in mitigating the adverse effect of defects, demonstrating a maximum of ∼33% increase in short-circuit photocurrent densities compared to single-p-layer configuration in the highest efficiency device. Simulation studies are conducted to analyze the electrical characteristics and charge transport phenomenon of the device layers, and the improved performance of the final device.","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":"36 21","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144002419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Etching processes of Si(111) surfaces with bunched steps via atomic hydrogen irradiation intermittently observed by atomic force microscopy. 用原子力显微镜观察了原子氢辐照对Si（111）表面的簇阶蚀刻过程。

IF 2.9 4区材料科学

Nanotechnology Pub Date : 2025-04-30 DOI: 10.1088/1361-6528/adcf2e

Tomoaki Miyagi, Akira Sasahara, Masahiko Tomitori

{"title":"Etching processes of Si(111) surfaces with bunched steps via atomic hydrogen irradiation intermittently observed by atomic force microscopy.","authors":"Tomoaki Miyagi, Akira Sasahara, Masahiko Tomitori","doi":"10.1088/1361-6528/adcf2e","DOIUrl":"https://doi.org/10.1088/1361-6528/adcf2e","url":null,"abstract":"Silicon (Si) (111)-(7 × 7) surfaces with wide terraces and bunched steps were passivated with atomic hydrogen (H) and subsequently etched by irradiation of atomic H. The atomic H can suppress the reactivity of Si surfaces by terminating the dangling bonds of Si surfaces. Meanwhile, atomic H can break the periodic atomic structures such as (7 × 7) on the Si surfaces. In the present study, we intermittently repeated the atomic H irradiation to the H-terminated Si(111) surface and frequency-modulation atomic force microscopy observation in a conventional vacuum chamber. When H2gas was introduced to the cracker with a gas flow rate of 1 sccm (≈1.7 × 10-8m3·s-1), corresponding to an atomic H flux of 2.5 × 1016cm-2·s-1, one hour of the atomic H irradiation increased the roughness of the terrace from 1.4 nm up to 1.9 nm. With increasing the gas flow rate to 10 sccm, pits were formed on the surface and enlarged to 20-40 nm diameters across the bunched step with shallow flat bottoms and non-uniform winding edges. The surface etching probably starts from the adsorption of H on the lower-coordinated Si atoms exposed at the bunched steps. The side walls of pits seemed to consist of {110} and {100} facets that are readily etched due to the smaller number of the back bonds of Si atoms.","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":"36 21","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144020196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Synthesis and characterization of piroxicam and M (M = Pd(II), Ag(I)) complex nanoconjugates with orange quantum dots for enhanced antimicrobial and anticancer activity. 吡罗昔康与M (M= Pd （II), Ag (I)）纳米配合物的合成及表征

IF 2.9 4区材料科学

Nanotechnology Pub Date : 2025-04-30 DOI: 10.1088/1361-6528/adc4eb

Ahmed M Kamal El-Sagheir, Aya M Soliman, Alaa Elsaghir, Momen M Thabet, Ahmed Faried Abdel Hakiem, Ahmed S Aboraia

{"title":"Synthesis and characterization of piroxicam and M (M = Pd(II), Ag(I)) complex nanoconjugates with orange quantum dots for enhanced antimicrobial and anticancer activity.","authors":"Ahmed M Kamal El-Sagheir, Aya M Soliman, Alaa Elsaghir, Momen M Thabet, Ahmed Faried Abdel Hakiem, Ahmed S Aboraia","doi":"10.1088/1361-6528/adc4eb","DOIUrl":"10.1088/1361-6528/adc4eb","url":null,"abstract":"Conjugation and loading of piroxicam and its metal complexes; Palladium(II) (PdL2) and Silver(I) (AgL) synthesized and characterized by different techniques including infrared, UV-Vis spectroscopy, spectrofluorimetry, transmission electron microscope, x-ray powder diffraction and Zeta potential analyses were achieved. Orange quantum dots (OQDs) nanoparticle showed good stability, encapsulation and loading efficiency and controlled release of loaded piroxicam and its metal complexes. Generally, new OQQs conjugates showed enhanced antimicrobial and anticancer activity.In vitroantimicrobial activity screening demonstrated thatAg(I)-OQDs conjugate displayed potent antibacterial effect that was 1.8-fold againstE. colihigher than piroxicam (MIC = 31.85µM), wherePd(II)-OQDs conjugate depicted the highest activity with MIC of 33.05µM againstP. aeruginosa. In case of G + ve bacteria,Agconjugate had potent activity which was 2.3-fold onS. aureushigher than piroxicam (MIC = 43.12µM), whilePdconjugate exerted promising activity that was 3.5-fold againstE. faecalishigher than piroxicam (MIC = 74.57µM).Agconjugate showed the most promising antifungal activity with 2.5-folds more than piroxicam. Thein vitroantiproliferative activity depicted that all synthesized conjugates showed better Cytotoxic effect than piroxicam, specificallyPdconjugate which had IC50 values with by 2-fold lower than piroxicam on human liver cancer cell lineHepg2.WhilePdandAgconjugates showed 2.3 and 1.9-fold higher effect on human colon cancer cell lineHT-29compared to piroxicam.","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143710667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

A doxorubicin-loaded polymeric nanocarrier with 2,2'-binaphthyl-1,1'-diol-based backbone and tannic acid coating for enhanced stability and antitumor applications. 一种负载阿霉素的聚合物纳米载体，具有2,2'-联萘-1,1'-二醇基骨架和单宁酸涂层，用于增强稳定性和抗肿瘤应用。

IF 2.9 4区材料科学

Nanotechnology Pub Date : 2025-04-30 DOI: 10.1088/1361-6528/add26d

Xiaoxia Guo, Chaofan Wang, Lihong Fan, Jie Wang, Qianqiu Wang, Chenfan Duan, Ban Chen, Heshuang Dai

{"title":"A doxorubicin-loaded polymeric nanocarrier with 2,2'-binaphthyl-1,1'-diol-based backbone and tannic acid coating for enhanced stability and antitumor applications.","authors":"Xiaoxia Guo, Chaofan Wang, Lihong Fan, Jie Wang, Qianqiu Wang, Chenfan Duan, Ban Chen, Heshuang Dai","doi":"10.1088/1361-6528/add26d","DOIUrl":"https://doi.org/10.1088/1361-6528/add26d","url":null,"abstract":"This study presents PBVT, a polyurethane-based nano-drug delivery system incorporating BINOL (2,2'-binaphthyl-1,1'-diol), tannic acid (TA), and phenylboronic acid (PBA), to overcome critical challenges in cancer therapy such as low drug-loading capacity, nanoparticle instability, and systemic toxicity. Polyurethane was chosen as the base material due to its exceptional versatility, offering tunable mechanical properties, biocompatibility, and chemical stability, making it ideal for constructing robust nanocarriers for drug delivery. BINOL is incorporated for the first time into a nano polyurethane framework, featuring dual naphthalene rings that enable strong π-π stacking interactions with doxorubicin (DOX), achieving a high drug-loading capacity (48.6%) and encapsulation efficiency (89.8%). TA enhances system stability and biocompatibility through hydrogen bonding, while its phenolic hydroxyl groups provide antioxidant and antibacterial properties, reducing infection risks during chemotherapy. PBA is integrated into the polyurethane backbone adding pH-responsive drug release capabilities, allowing selective and controlled release of DOX in acidic tumor microenvironments. In vitro, cellular experiments confirmed the low cytotoxicity of PBVT against normal cells and the potent anticancer activity of PBVT-DOX in tumor cells in a dose-dependent manner. The system demonstrated sustained drug release and stability for over two weeks under physiological conditions. PBVT-DOX represents a novel, efficient platform for targeted cancer therapy and the development of advanced polyurethane-based nanomaterials for biomedical applications.","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144025493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Exploring the effect of oxygen plasma on SnS₂-ZnFe₂O₄based supercapacitor electrodes. 探讨氧等离子体对sns2 - znfe2o4基超级电容器电极的影响。

IF 2.9 4区材料科学

Nanotechnology Pub Date : 2025-04-30 DOI: 10.1088/1361-6528/adcacc

Mahboobeh Setayeshmehr, Mohsen Moayedi, Fatemeh Shahbaz Tehrani, Reza Jamehbozorg, Roya Ayoubi, Yaser Abdi

{"title":"Exploring the effect of oxygen plasma on SnS2-ZnFe2O4based supercapacitor electrodes.","authors":"Mahboobeh Setayeshmehr, Mohsen Moayedi, Fatemeh Shahbaz Tehrani, Reza Jamehbozorg, Roya Ayoubi, Yaser Abdi","doi":"10.1088/1361-6528/adcacc","DOIUrl":"https://doi.org/10.1088/1361-6528/adcacc","url":null,"abstract":"The present study focuses on the fabricate the SnS2-ZnFe2O4compound to be employed as electrode materials in pseudocapacitors and raise its capacitance via direct-current O2plasma (DCOP) treatment. To maximally increase the capacitance of the constructed electrodes, the best conditions concerning temperature, exposure time, and power, as features of DCOP, were initially determined. Using the three-electrode cyclic voltammetry measurements, the electrodes exhibited the highest specific capacitance (733 F g-1) when the exposure time, output power, and temperature were set to 25 min, 1700 W, and 25 °C, respectively. The energy and power densities of the fabricated symmetric supercapacitor were estimated to be 43.5 Wh kg-1, which is considered substantially high, and 750 W kg-1, respectively, at a highest operating voltage of 1.5 V. The functional groups of the created electrodes were also analyzed, and it was found that the reason for considerable increases in the capacitance was improvement of the functional groups comprising oxygen such as O-Sn-O, Sn-O-C, and Fe-O on the surface of the SnS2-ZnFe2O4electrodes.","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":"36 21","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143981526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Recent advances in semiconductor nanostructure-based surface-enhanced Raman scattering sensors. 基于半导体纳米结构的表面增强拉曼散射传感器研究进展。

IF 2.9 4区材料科学

Nanotechnology Pub Date : 2025-04-25 DOI: 10.1088/1361-6528/adcbaf

Sirsendu Ghosal, Sanju Nandi, P K Giri

{"title":"Recent advances in semiconductor nanostructure-based surface-enhanced Raman scattering sensors.","authors":"Sirsendu Ghosal, Sanju Nandi, P K Giri","doi":"10.1088/1361-6528/adcbaf","DOIUrl":"https://doi.org/10.1088/1361-6528/adcbaf","url":null,"abstract":"Surface-enhanced Raman scattering (SERS) has become a transformative analytical tool, attracting growing interest for its wide-ranging applications. The development of SERS-active materials is now a central research area, spurring innovation in various types of SERS substrates. While noble metal-based substrates remain extensively studied, semiconductor-based, non-metal substrates are garnering attention due to their unique advantages: excellent chemical stability, high carrier mobility, biocompatibility, and precise fabrication control. However, their generally weaker enhancement effects limit their utility, underscoring the need for strategies to boost their SERS activity. Understanding the complex enhancement mechanisms in semiconductor-based SERS substrates is critical for designing next-generation materials with metal-like enhancement factors (EFs). The interplay of charge transfer, localized surface plasmon resonance, and photonic effects makes the enhancement process inherently challenging to unravel. Therefore, the search for new materials with exciting optoelectronic properties, as well as more innovative solutions to increase their SERS sensitivity, continues to grow. In this review, we explore the latest advancements in semiconductor-based SERS substrates, dissecting the complex enhancement mechanisms and various modification strategies aimed at achieving metal-like high EFs. We present a comprehensive analysis of the methods used to improve the SERS performance of semiconductor substrates and conclude with potential future directions for advancing this dynamic field.","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":"36 20","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144019282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

High-temperature energy storage properties of polyetherimide composites with tailored boron nitride quantum dots. 定制化氮化硼量子点聚醚酰亚胺复合材料的高温储能性能。

IF 2.9 4区材料科学

Nanotechnology Pub Date : 2025-04-25 DOI: 10.1088/1361-6528/adce11

Jiayang Han, Wei Gao, Liujie Shao, Lixin Xu, Huijian Ye

{"title":"High-temperature energy storage properties of polyetherimide composites with tailored boron nitride quantum dots.","authors":"Jiayang Han, Wei Gao, Liujie Shao, Lixin Xu, Huijian Ye","doi":"10.1088/1361-6528/adce11","DOIUrl":"https://doi.org/10.1088/1361-6528/adce11","url":null,"abstract":"Polymer film capacitors are currently being extensively investigated due to their advantages of outstanding power density and processability. However, the charge-discharge efficiency and energy density at high temperature for polymer dielectrics need to be further developed to fulfill the potential applications. In this study, sandwiched polyetherimide (PEI) composites with boron nitride quantum dots (BNQDs) have been prepared, in which BNQD/PEI composite as the outer layer prevents the diffusion of charge carriers with low conduction loss, and the relaxor P(VDF-TrFE-CFE) inner film serves as high electric displacement. The BNQDs are synthesized through the solvothermal reaction, and their inclusion enhances the dielectric constant and interfacial polarization of the composite. The presence of quantum dots restricts the hopping of charge carriers at high temperatures by increasing the activation of the energy barrier, which improves the dielectric reliability of PEI composites. Since the BNQD/PEI outer layer affords the majority of the electric field based on the principle of field strength distribution, large charge-discharge efficiency at high temperature is achieved in the optimal composite film. For example, an energy density of 9.9 J cm-3with an efficiency of 90% at 450 MV m-1is reached in 3 wt% multilayer film at 100 °C. The strategy of polymer multilayer film incorporated with tailored quantum dots offers an efficient approach for developing high-performance polymer dielectrics that withstand harsh electrical and thermal conditions.","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":"36 20","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144028932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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