Current Applied Physics最新文献_第9页

Effect of sintering temperatures on physico-mechanical properties of single-phase magnesium borate nanorods 烧结温度对单相硼酸镁纳米棒物理力学性能的影响

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-01-10 DOI: 10.1016/j.cap.2025.01.008

Vaibhav Singh , Niraj Singh Mehta , Subhashish Dey , Manas Ranjan Majhi

{"title":"Effect of sintering temperatures on physico-mechanical properties of single-phase magnesium borate nanorods","authors":"Vaibhav Singh , Niraj Singh Mehta , Subhashish Dey , Manas Ranjan Majhi","doi":"10.1016/j.cap.2025.01.008","DOIUrl":"10.1016/j.cap.2025.01.008","url":null,"abstract":"<div><div>An optimized molar ratio of magnesia (MgO) and boric acid (H<sub>3</sub>BO<sub>3</sub>) was used to synthesize the nanorod of single-phase magnesium borate (Mg<sub>2</sub>B<sub>2</sub>O<sub>5</sub>) through a solution reaction cum sintering process. Due to their impressive mechanical strength and resistance to heat and corrosion, magnesium borates (MB) nanorods are extensively applicable as reinforcing materials. A meticulous examination was undertaken to assess the characterization and physico-mechanical properties of Mg<sub>2</sub>B<sub>2</sub>O<sub>5</sub> (MB) nanorods during the sintering process between 700 °C and 1200 °C. Mechanical properties of synthesized MB compacts were investigated between 700 and 1200 °C. The maximum value of high temperature flexural strength (HMOR) and room temperature flexural strength (CMOR) achieved by MB compacts are 42 MPa and 53 MPa respectively. Furthermore, the compacts have a maximum compressive strength of 118 MPa and a maximum hardness of 64 HV at 1100 °C, making it promising reinforcing material for composites.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"71 ","pages":"Pages 163-168"},"PeriodicalIF":2.4,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Magnetic properties of van der Waals ferromagnet Fe3GeTe2 nanosheets grown by flux-assisted growth 范德华铁磁体Fe3GeTe2纳米片的磁特性

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-01-09 DOI: 10.1016/j.cap.2025.01.009

Seungchul Choi , In Hak Lee , Yeong Gwang Khim , Jung Yun Kee , Tae Gyu Rhee , Hyo Won Seoh , Hyuk Jin Kim , Jun Woo Choi , Young Jun Chang

{"title":"Magnetic properties of van der Waals ferromagnet Fe3GeTe2 nanosheets grown by flux-assisted growth","authors":"Seungchul Choi , In Hak Lee , Yeong Gwang Khim , Jung Yun Kee , Tae Gyu Rhee , Hyo Won Seoh , Hyuk Jin Kim , Jun Woo Choi , Young Jun Chang","doi":"10.1016/j.cap.2025.01.009","DOIUrl":"10.1016/j.cap.2025.01.009","url":null,"abstract":"<div><div>Among two-dimensional (2D) van der Waals (vdW) materials, Fe<sub>3</sub>GeTe<sub>2</sub> (FGT), a 2D vdW ferromagnetic material, has gained significant interest due to its high Curie temperature and perpendicular magnetic anisotropy. Despite the difficulties in fabricating high-quality crystals, the flux-assisted growth (FAG) method has recently emerged as a promising technique for synthesizing 2D vdW materials. In this study, we employed the FAG method to fabricate crystalline FGT nanosheets under varied growth parameters. Magneto-optical Kerr effect (MOKE) measurements revealed that the FGT nanosheets exhibit perpendicular magnetic anisotropy with a Curie temperature of 222 K. Additionally, the MOKE data indicate the presence of exchange bias phenomena, likely due to the FeO phase associated with oxidized FGT surface. These findings enhance our understanding of the fundamental physics of FGT nanosheets and contribute to the advancement of diverse 2D magnetic device applications.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"71 ","pages":"Pages 169-174"},"PeriodicalIF":2.4,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The coexistence of electrostrictive and magnetostrictive properties in a polycrystalline ZnO film 多晶ZnO薄膜的电致伸缩和磁致伸缩共存特性

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-01-08 DOI: 10.1016/j.cap.2025.01.007

Suman Guchhait , H. Aireddy , Niladri Sekhar Kander , A.K. Das

{"title":"The coexistence of electrostrictive and magnetostrictive properties in a polycrystalline ZnO film","authors":"Suman Guchhait , H. Aireddy , Niladri Sekhar Kander , A.K. Das","doi":"10.1016/j.cap.2025.01.007","DOIUrl":"10.1016/j.cap.2025.01.007","url":null,"abstract":"<div><div>A polycrystalline ZnO film is fabricated on a cantilevered substrate of silicon by pulsed laser deposition (PLD) technique and investigated the electrostrictive and magnetostrictive (in-plane and out-of-plane) properties by an indigenously developed optical cantilever beam magnetometer (CBM) setup. The film shows excellent electrostrictive as well as magnetostrictive response at room temperature (300 K) with high values of piezoelectric strain coefficient (<span><math><mrow><mo>|</mo><mi>d</mi><mo>|</mo></mrow></math></span> = 69.69 p.m./V), piezoelectric stress coefficient (<span><math><mrow><mo>|</mo><mi>e</mi><mo>|</mo></mrow></math></span> = 7.75 C/m<sup>2</sup>), saturation magnetostriction (<span><math><mrow><msub><mi>λ</mi><mi>s</mi></msub></mrow></math></span> = 1286.15 ppm & 647.99 ppm), and strain sensitivity (dλ/dH = 12.63 × 10 <sup>−9</sup> A<sup>−1</sup>m & 8.29 × 10 <sup>−9</sup> A<sup>−1</sup>m) in in-plane and out-of-plane configuration, respectively. The emergence of significant electrostrictive and magnetostrictive responses makes the ZnO film well suited for use as a ferroelectric (FE) or as a ferromagnetic (FM) material in electric field-controlled multiferroic magnetoelectric composites (i.e., FM/FE heterostructure) applicable for the development of novel spintronic devices.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"71 ","pages":"Pages 144-151"},"PeriodicalIF":2.4,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143170836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of dopants and strains on the oxygen vacancy formation in VO2 掺杂剂和应变对VO2中氧空位形成的影响

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-01-08 DOI: 10.1016/j.cap.2025.01.001

Inseo Kim, Han-Youl Ryu, Minseok Choi

{"title":"Impact of dopants and strains on the oxygen vacancy formation in VO2","authors":"Inseo Kim, Han-Youl Ryu, Minseok Choi","doi":"10.1016/j.cap.2025.01.001","DOIUrl":"10.1016/j.cap.2025.01.001","url":null,"abstract":"<div><div>We perform first-principles calculations to examine the relationship of the oxygen vacancy (<span><math><msub><mrow><mi>V</mi></mrow><mrow><mi>O</mi></mrow></msub></math></span>) formation with dopants and mechanical strains in metallic tetragonal VO<sub>2</sub>. Both compressive and tensile biaxial strains lower the formation energy of <span><math><msub><mrow><mi>V</mi></mrow><mrow><mi>O</mi></mrow></msub></math></span>, and the lowering of the formation energy is more pronounced under tensile strain. When six dopants, which possess different charge state and ionic radius, are introduced, the formation energy of <span><math><msub><mrow><mi>V</mi></mrow><mrow><mi>O</mi></mrow></msub></math></span> increases, indicating that the dopants may suppress the <span><math><msub><mrow><mi>V</mi></mrow><mrow><mi>O</mi></mrow></msub></math></span> formation in VO<sub>2</sub>. Strains lead to similar trends in the undoped case, i.e., strains reduce the <span><math><msub><mrow><mi>V</mi></mrow><mrow><mi>O</mi></mrow></msub></math></span> formation energy in the doped VO<sub>2</sub>. Based on the results, we suggest that the difference in atomic relaxations of the two kinds of V–O bonds plays an important role in determining the formation energy of <span><math><msub><mrow><mi>V</mi></mrow><mrow><mi>O</mi></mrow></msub></math></span>.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"71 ","pages":"Pages 125-129"},"PeriodicalIF":2.4,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143170837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Polythiophene nanostructure film deposited using a bump electrode in atmospheric pressure plasma polymerization for increased film uniformity 在常压等离子体聚合中采用凹凸电极沉积聚噻吩纳米结构薄膜，以提高薄膜的均匀性

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-01-07 DOI: 10.1016/j.cap.2025.01.004

Jae Young Kim , Sebinn Jang , Hyojun Jang , Jeongbin Nam , Habeeb Olaitan Suleiman , Eun Young Jung , Choon-Sang Park , Heung-Sik Tae

{"title":"Polythiophene nanostructure film deposited using a bump electrode in atmospheric pressure plasma polymerization for increased film uniformity","authors":"Jae Young Kim , Sebinn Jang , Hyojun Jang , Jeongbin Nam , Habeeb Olaitan Suleiman , Eun Young Jung , Choon-Sang Park , Heung-Sik Tae","doi":"10.1016/j.cap.2025.01.004","DOIUrl":"10.1016/j.cap.2025.01.004","url":null,"abstract":"<div><div>We propose a plasma reactor with a multiple bump-shaped wire electrode to increase the plasma volume for atmospheric pressure (AP) plasma polymerization. Triangular bumps are added to the tungsten wire in a plasma reactor in the form of a vessel capable of generating plasma. Since the discharge is initiated and maintained at the lower part of the triangular bump electrode, the effective volume of the glow plasma can be increased as the number of bumps increases. Even though a discharge imbalance due to differences in bump positions can adversely affect the uniformity of polymerized films, rotating the substrate can greatly improve film uniformity. With the developed AP plasma reactor, polythiophene (PTh) nanostructure films are synthesized and both the film characteristics and uniformity of the PTh nanostructures are investigated in detail. Additionally, conductive PTh films are produced through an iodine doping process, and the chemical properties and electrical stability of the doped PTh films are thoroughly examined.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"71 ","pages":"Pages 152-162"},"PeriodicalIF":2.4,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143170842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tailoring the electrochemical performance of the polymer electrolyte using Na2H20B4O17 for magnesium sulfur battery applications 使用Na2H20B4O17定制用于镁硫电池应用的聚合物电解质的电化学性能

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-01-07 DOI: 10.1016/j.cap.2025.01.006

M.A. Attallah, E. Sheha

{"title":"Tailoring the electrochemical performance of the polymer electrolyte using Na2H20B4O17 for magnesium sulfur battery applications","authors":"M.A. Attallah, E. Sheha","doi":"10.1016/j.cap.2025.01.006","DOIUrl":"10.1016/j.cap.2025.01.006","url":null,"abstract":"<div><div>Due to the construction's low cost, ecological appeal, friendliness, great theoretical density, and reliability, the Mg-S battery is an encouraging substitute for the pillar lithium battery. Nevertheless, self-discharge, the delayed conversion reaction pathway, and the absence of readily compatible electrolytes continue to restrict its beneficial uses. In this work, polymer electrolyte used 0.7 wt% polyvinyl alcohol (PVA), (0.3-x)<sub>wt.%</sub>(Mg(CF<sub>3</sub>SO<sub>3</sub>)<sub>2</sub>) and <sub>xwt.%</sub>Na<sub>2</sub>H<sub>20</sub>B<sub>4</sub>O<sub>17</sub> (x = 0,0.01,0.02,0.03,0.04,0.05) (PE<sub>x</sub>) have been prepared and characterized for usage in Mg-S batteries. Integrating the PVA_<sub>(0.3-x)wt.%</sub> (Mg(CF<sub>3</sub>SO<sub>3</sub>)<sub>2</sub>)_ <sub>0.04</sub>Na<sub>2</sub>H<sub>20</sub>B<sub>4</sub>O<sub>17</sub> (X<sub>4</sub>) with tetraethylene glycol dimethyl ether (G<sub>4</sub>) demonstrates effective Mg plating and stripping behavior, good anodic stability (versus Mg/Mg <sup>2+</sup>), and a significant ionic conductivity (8.09 <span><math><mrow><mo>×</mo></mrow></math></span> 10<sup>−7</sup> S cm<sup>−1</sup> at 323 K). The Mg-S is assembled using an X<sub>4</sub>_G<sub>4</sub> electrolyte and delivers a reversible capacity of 100 mAh g<sup>−1</sup> after 30 cycles.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"71 ","pages":"Pages 175-183"},"PeriodicalIF":2.4,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structural and luminescent properties of water-quenched Eu3+-doped HfW2O8 with negative thermal expansion 负热膨胀水淬Eu3+掺杂HfW2O8的结构和发光性能

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-01-06 DOI: 10.1016/j.cap.2025.01.005

K.C. Lee, J.H. Han, S.W. Wi, Y.S. Lee

{"title":"Structural and luminescent properties of water-quenched Eu3+-doped HfW2O8 with negative thermal expansion","authors":"K.C. Lee, J.H. Han, S.W. Wi, Y.S. Lee","doi":"10.1016/j.cap.2025.01.005","DOIUrl":"10.1016/j.cap.2025.01.005","url":null,"abstract":"<div><div>This study represents the first attempt to correlate the photoluminescence properties of Eu<sup>3+</sup>-doped HfW<sub>2</sub>O<sub>8</sub> (Hf<sub>1-x</sub>Eu<sub>x</sub>W<sub>2</sub>O<sub>8</sub>) with their novel thermal structural changes, i.e., negative thermal expansion (NTE). We synthesized Hf<sub>1-x</sub>Eu<sub>x</sub>W<sub>2</sub>O<sub>8</sub> (x = 0, 0.01, 0.03, 0.05, 0.07, 0.09, 0.12, and 0.15) via a fast solid state reaction method with water quenching. Temperature dependent X-ray diffraction patterns exhibited the phase transition from α-phase (<em>P2</em><sub><em>1</em></sub><em>3</em>, cubic) to β-phase (<em>Pa-3</em>, cubic) as the temperature increased from room temperature to 200 °C, along with highly linear contraction of lattice constants. The thermal expansion coefficient and the volume thermal expansion coefficient were determined as approximately −1.1 × 10<sup>−5</sup> and −3.4 × 10<sup>−5</sup>, respectively. In the temperature dependent photoluminescence measurement, together with the thermal quenching behavior, we found that the asymmetric ratios decreased in accord with the structural change to higher symmetry. These findings reveal that the luminescent properties of Eu<sup>3+</sup> are closely related to the structural properties in NTE HfW<sub>2</sub>O<sub>8</sub>.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"71 ","pages":"Pages 130-137"},"PeriodicalIF":2.4,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143170838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","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 multifunctionality of carbon dots: Advances in synthesis, properties, and applications 探索碳点的多功能性：合成、性质和应用的进展

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-01-04 DOI: 10.1016/j.cap.2025.01.003

Soumya Pandit , Nishant Ranjan , Rajan Verma , Kuldeep Sharma , Richa Tomar , Firdaus Mohamad Hamzah

{"title":"Exploring the multifunctionality of carbon dots: Advances in synthesis, properties, and applications","authors":"Soumya Pandit , Nishant Ranjan , Rajan Verma , Kuldeep Sharma , Richa Tomar , Firdaus Mohamad Hamzah","doi":"10.1016/j.cap.2025.01.003","DOIUrl":"10.1016/j.cap.2025.01.003","url":null,"abstract":"<div><div>Owing to their small size, and unique physical and chemical properties, zero-dimensional carbon nanomaterials, carbon dots (CDs) have been increasingly critically analyzed for their potential applications in the fields of biology, chemistry, food science, and energy. This study systematically explores the multifunctional capabilities of CDs, emphasizing recent advancements in their synthesis techniques, precise characterization methods, and their tailored applications across interdisciplinary domains. The applications of CDs, which are generally smaller than 10 nm, in myriad fields are ascribed to their intrinsic merits of good biocompatibility, little cytotoxicity, good stability, and large specific surface area. The development of CDs along with their accurate characterization, and their successful implementation into faster, less expensive, and more reliable systems in a variety of scientific fields are testimony to how science has advanced and merged to create interdisciplinary fields. Despite extensive research, there is still the need to overcome the problem of large-scale production and improve quantum yield as well as functionality for specific applications, which this study seeks to analyze. Thus, a new era in nanotechnology has begun with the advancement in the exploration of CDs for applications in new and emerging scientific fields. CDs exhibit a huge number of distinctive physiochemical, photophysical, and photochemical properties which makes them a suitable platform for applications related to imaging, environmental remediation, catalysis, biology, and energy. The present research, therefore, focuses on the function and importance of CDs, as well as their synthesis, properties, and new developments in several fields of application.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"71 ","pages":"Pages 106-119"},"PeriodicalIF":2.4,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Eliminating adhesive layers in silver metallization: A comparative study of glass cleaning methods for enhanced hydroxylation and adhesion 消除银金属化中的粘合层：增强羟基化和粘合的玻璃清洁方法的比较研究

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-01-03 DOI: 10.1016/j.cap.2025.01.002

Amnani Abu Bakar , N.H. Hashim , H.A. Tajuddin , A.S. Sadun , Z.H.Z. Abidin

{"title":"Eliminating adhesive layers in silver metallization: A comparative study of glass cleaning methods for enhanced hydroxylation and adhesion","authors":"Amnani Abu Bakar , N.H. Hashim , H.A. Tajuddin , A.S. Sadun , Z.H.Z. Abidin","doi":"10.1016/j.cap.2025.01.002","DOIUrl":"10.1016/j.cap.2025.01.002","url":null,"abstract":"<div><div>Achieving robust adhesion and cost-efficiency in silver (Ag) thin films is pivotal for advancing microelectronic applications, owing to Ag's exceptional low resistivity and thermal stability. This study investigates an optimized approach to hydroxylate glass substrates, effectively eliminating the reliance on conventional adhesive layers. Among five chemical cleaning methods evaluated, immersion in concentrated H₂SO₄, followed by thorough rinsing with deionized water and ultrasonication in ethanol, emerged as the most effective. This method produced highly hydrophilic surfaces with a contact angle (CA) of 6.6°. The resulting Ag films, deposited via physical vapor deposition, demonstrated excellent adhesion without peeling, while also exhibiting smooth and uniform surfaces ideal for subsequent functionalization. By streamlining substrate preparation, this methodology enhances the fabrication efficiency of high-performance microelectronic devices, offering a practical and scalable solution for industrial applications.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"71 ","pages":"Pages 138-143"},"PeriodicalIF":2.4,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143170839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced energy storage performance of lead-free bismuth ferrite-strontium titanate multilayers via polarization spiral structures 利用极化螺旋结构增强无铅铁酸铋-钛酸锶多层膜的储能性能

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-01-02 DOI: 10.1016/j.cap.2024.12.011

Ha Thi Dang , Ba-Hieu Vu , Van-Hai Dinh , Le Van Lich

{"title":"Enhanced energy storage performance of lead-free bismuth ferrite-strontium titanate multilayers via polarization spiral structures","authors":"Ha Thi Dang , Ba-Hieu Vu , Van-Hai Dinh , Le Van Lich","doi":"10.1016/j.cap.2024.12.011","DOIUrl":"10.1016/j.cap.2024.12.011","url":null,"abstract":"<div><div>The quest for environmentally friendly lead-free dielectrics with exceptional energy storage performance poses a significant challenge. Here, we propose an alternative approach through a rational design of lead-free ferroelectric/paraelectric (BiFeO<sub>3</sub>/SrTiO<sub>3</sub>) multilayers. Utilizing the phase-field model, we demonstrate that the energy storage density and charge–discharge efficiency can be optimized by adjusting the volume fractions of BiFeO<sub>3</sub>. A volume fraction of 0.69 BiFeO<sub>3</sub> yields the highest discharge energy storage density (58.01 J/cm<sup>3</sup>) and near-perfect charge-discharge efficiency (99.8%) at 4 MV/cm. The multilayers exhibit varying hysteresis behaviors, from ferroelectric to relaxor to paraelectric-like characteristics, depending on the BiFeO<sub>3</sub> ratio. This study reveals that different polarization domain structures correspond to these behaviors, transitioning from stripe to spiral to in-plane patterns as the ferroelectric volume is reduced. Notably, the polarization spiral structure maintains excellent energy storage across temperatures up to 550<!--> <sup>∘</sup>C. These insights are crucial for developing high-performance dielectrics for electrical energy storage.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"71 ","pages":"Pages 91-98"},"PeriodicalIF":2.4,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0