Synthetic Metals最新文献

Impact of different aromatic side units on benzodithiophene on the optical, electronic, and photovoltaic properties for organic solar cell applications 苯并二噻吩上不同芳香侧基对有机太阳能电池光学、电子和光电性能的影响

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-05-20 DOI: 10.1016/j.synthmet.2025.117890

Sultan Taskaya Aslan , Elif Demir Arabacı , Oguzhan Karakurt , Duygu Cevher , Eda Alemdar Yılmaz , Duygu Yalvac , Dilber Esra Yıldız , Ali Cirpan

{"title":"Impact of different aromatic side units on benzodithiophene on the optical, electronic, and photovoltaic properties for organic solar cell applications","authors":"Sultan Taskaya Aslan , Elif Demir Arabacı , Oguzhan Karakurt , Duygu Cevher , Eda Alemdar Yılmaz , Duygu Yalvac , Dilber Esra Yıldız , Ali Cirpan","doi":"10.1016/j.synthmet.2025.117890","DOIUrl":"10.1016/j.synthmet.2025.117890","url":null,"abstract":"<div><div>This study investigates the influence of different aromatic side groups on the 2D-benzodithiophene (BDT) unit in donor–acceptor conjugated polymers for organic solar cell (OSC) applications. Three new polymers, <strong>P1</strong>, <strong>P2</strong>, and <strong>P3</strong>, featuring phenyl, thienyl, and thienothienyl side chains on the 2D-BDT backbone, respectively, were synthesized using the Stille cross-coupling reaction. The benzotriazole (BTz) unit served as the electron acceptor with a selenophene π-bridge to enhance electronic interactions. The optical band gaps were determined to be 1.79 eV, 1.74 eV, and 1.73 eV for <strong>P1</strong>, <strong>P2</strong>, and <strong>P3</strong>, respectively. OSCs fabricated using these polymers and PC<sub>71</sub>BM as the acceptor showed the best performance for the thienyl-substituted polymer (<strong>P2</strong>), achieving a PCE of 4.34 % with a J<sub>SC</sub> of 10.08 mA/cm<sup>2</sup>, an V<sub>OC</sub> of 0.67 V, and a FF of 64 %. Compared to <strong>P1</strong> and <strong>P3</strong>, the <strong>P2</strong>-based blend exhibited a more defined interpenetrating network with PC<sub>71</sub>BM, enhancing charge transport and promoting exciton dissociation due to its thinner active layer and optimized morphology. These findings highlight the importance of side-chain engineering in improving the optoelectronic properties, morphology, and photovoltaic performance of OSCs. This study highlights the critical role of side-chain engineering in tuning the optoelectronic properties, morphology, and performance of OSCs. The findings emphasize that thienyl side chains in <strong>P2</strong> facilitate better π–π stacking and molecular organization, resulting in superior device performance compared to phenyl and thienothienyl-substituted counterparts.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"313 ","pages":"Article 117890"},"PeriodicalIF":4.0,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144138575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 morphology-dependent study of V2O5@rGO nanocomposite-based chemiresistive room temperature gas sensor for detecting NO2 基于V2O5@rGO纳米复合材料的化学电阻室温NO2气体传感器的形貌依赖性研究

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-05-19 DOI: 10.1016/j.synthmet.2025.117891

Mahesh A. Takte , Gopal M. Chavhan , Akash V. Fulari , Meng-Lin Tsai , Tibor Hianik , Mahendra D. Shirsat

{"title":"A morphology-dependent study of V2O5@rGO nanocomposite-based chemiresistive room temperature gas sensor for detecting NO2","authors":"Mahesh A. Takte , Gopal M. Chavhan , Akash V. Fulari , Meng-Lin Tsai , Tibor Hianik , Mahendra D. Shirsat","doi":"10.1016/j.synthmet.2025.117891","DOIUrl":"10.1016/j.synthmet.2025.117891","url":null,"abstract":"<div><div>We performed the shape-selective analysis of two different morphologies of mesoporous vanadium pentoxide (V<sub>2</sub>O<sub>5</sub>) composite containing reduced graphene oxide (rGO), namely nanorods (V<sub>2</sub>O<sub>5</sub>NR@rGO) and nanoparticles (V<sub>2</sub>O<sub>5</sub>NP@rGO), respectively, as an efficient nitrogen dioxide sensor (NO<sub>2</sub>). We have shown that the sensor's response highly depends on the sample's morphology, which can be described by the combined effect of surface area, pore size/distribution, crystallinity, and surface defects. The V<sub>2</sub>O<sub>5</sub>NR@rGO composite showed higher sensitivity with faster response and recovery times than the V<sub>2</sub>O<sub>5</sub>NP@rGO composite. The response of the sensors at ambient conditions can be attributed to the fast charge carrier mobility of rGO at room temperature (RT). The proposed gas sensor exhibited excellent stability, higher sensitivity, high repeatability, and better selectivity towards different gases with an acceptable detection limit (LOD) of <em>1.33 ppm</em> and <em>2.32 ppm</em> for V<sub>2</sub>O<sub>5</sub>NR@rGO and V<sub>2</sub>O<sub>5</sub>NP@rGO, respectively. These properties reveal the sensor's wonderful potential for real-time detection of NO<sub>2</sub>.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"313 ","pages":"Article 117891"},"PeriodicalIF":4.0,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144107093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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-sensitivity and durable MWCNT@CuNp/silicone rubber flexible strain sensor for human motion detection and composite structural monitoring 高灵敏度，耐用MWCNT@CuNp/硅橡胶柔性应变传感器，用于人体运动检测和复合结构监测

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-05-18 DOI: 10.1016/j.synthmet.2025.117892

Muhammad Luthfi Hakim , Rela Adi Himarosa , Hasan Mastrisiswadi , Andri Nasution , Ardi Jati Nugroho Putro , Muhammad Akhsin Muflikhun , Herianto

{"title":"High-sensitivity and durable MWCNT@CuNp/silicone rubber flexible strain sensor for human motion detection and composite structural monitoring","authors":"Muhammad Luthfi Hakim , Rela Adi Himarosa , Hasan Mastrisiswadi , Andri Nasution , Ardi Jati Nugroho Putro , Muhammad Akhsin Muflikhun , Herianto","doi":"10.1016/j.synthmet.2025.117892","DOIUrl":"10.1016/j.synthmet.2025.117892","url":null,"abstract":"<div><div>Flexible strain sensors have attracted wide attention in various applications, such as wearable electronic devices, human motion detection, and soft robotics, due to their ability to measure mechanical deformation with a high degree of adaptability. In this study, we developed a silicon-based flexible strain sensor with a three-layer sandwich structure consisting of a silicon rubber substrate and MWCNT@CuNPs conductive material. The mixing of multi-walled carbon nanotubes (MWCNTs) and copper nanoparticles (CuNPs) aims to improve the electrical conductivity, sensitivity, and mechanical stability of the sensor. The sensor using MWCNT@CuNp material shows a sensitivity improvement of about 200 % compared to the SR@MWCNT@AgNp sensor, indicating superior electromechanical performance. The MWCNT@CuNp sensor test results show that the sensor has a measuring factor (GF) of 8.09 with high linearity (R² = 0.99) in the 0–80 % strain range. Mechanical durability tests showed that the sensor was able to withstand up to 1,200 loading and unloading cycles without significant performance degradation, proving its reliability for applications with repetitive strain. In addition, this sensor shows potential to be applied to various systems that require high sensitivity, good linearity, and superior mechanical durability. This sensor can not only be used in electronic skin to detect finger, wrist, elbow, and knee movements but also plays a role in monitoring strain changes in PLA/fiber glass/PLA composite materials during bending tests. These capabilities open opportunities for MWCNT@CuNPs sensors to be integrated in various engineering applications and smart material technologies.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"313 ","pages":"Article 117892"},"PeriodicalIF":4.0,"publicationDate":"2025-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144107094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Impact of the molecular size of the perylenediimide-derived electron transport materials on the efficiency and stability of p-i-n perovskite solar cells 过二酰亚胺衍生电子传输材料的分子尺寸对p-i-n钙钛矿太阳能电池效率和稳定性的影响

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-05-14 DOI: 10.1016/j.synthmet.2025.117888

Azat F. Akbulatov , Polina G. Novkina , Nikita A. Emelianov , Evgenia P. Antoshkina , Al'bert N. Galiullin , Nikita A. Slesarenko , Ekaterina A. Khakina , Olga A. Kraevaya , Sergey A. Kuklin , Pavel A. Troshin

{"title":"Impact of the molecular size of the perylenediimide-derived electron transport materials on the efficiency and stability of p-i-n perovskite solar cells","authors":"Azat F. Akbulatov , Polina G. Novkina , Nikita A. Emelianov , Evgenia P. Antoshkina , Al'bert N. Galiullin , Nikita A. Slesarenko , Ekaterina A. Khakina , Olga A. Kraevaya , Sergey A. Kuklin , Pavel A. Troshin","doi":"10.1016/j.synthmet.2025.117888","DOIUrl":"10.1016/j.synthmet.2025.117888","url":null,"abstract":"<div><div>Herein, we report the synthesis and application of a series of perylenediimide (PDI) derivatives with octyldodecyl substituents, including a PDI monomer, formal dimer, and polymer obtained via thiophene block-mediated dimerization and polymerization. Infrared-scattering scanning near-field optical microscopy (IR s-SNOM) characterization demonstrated that, compared to monomeric and dimeric PDIs, the PDI polymer forms significantly more uniform films with reduced defect density, indicating that increasing molecular weight improves the surface coverage of the perovskite layer. Consequently, PSCs incorporating polymeric PDI as the ETL exhibited the best photovoltaic performance, while monomeric PDI-based devices showed the lowest efficiency due to poor film quality. These findings highlight the promising potential of macromolecular PDI-based ETLs for achieving further advancements in perovskite photovoltaics.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"313 ","pages":"Article 117888"},"PeriodicalIF":4.0,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Highly efficient inverted phosphorescent organic light-emitting devices with Li-doped ZnO nanoparticles li掺杂ZnO纳米粒子的高效倒转磷光有机发光器件

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-05-14 DOI: 10.1016/j.synthmet.2025.117889

Hwan-Jin Yoo, Go-Eun Kim, Hee-Jin Park, Chan-Jun Park, Su-Been Lee, Seo-Young Kim, Dae-Gyu Moon

{"title":"Highly efficient inverted phosphorescent organic light-emitting devices with Li-doped ZnO nanoparticles","authors":"Hwan-Jin Yoo, Go-Eun Kim, Hee-Jin Park, Chan-Jun Park, Su-Been Lee, Seo-Young Kim, Dae-Gyu Moon","doi":"10.1016/j.synthmet.2025.117889","DOIUrl":"10.1016/j.synthmet.2025.117889","url":null,"abstract":"<div><div>Inverted organic light-emitting devices (OLEDs) have attracted much attention due to their superior characteristics such as high stability, low brightness drop, and low driving voltage in display applications. To improve the charge balance that has been known as a critical issue in inverted OLEDs, Li-doped ZnO nanoparticle electron injection layer was investigated. Hexagonal wurtzite-structured Li-doped ZnO nanoparticles were synthesized using zinc acetate dihydrate, ammonium hydroxide pentahydrate, and lithium chloride. The particle size of the nanoparticles decreases with Li doping, exhibiting particle sizes of 4.1, 3.7, and 3.3 nm for the undoped, 10 % and 15 % Li-doped nanoparticles, respectively. The band gap, conduction band minimum and valence band maximum energy, photoluminescence in the visible region, surface roughness, and electrical conduction characteristics of the Li-doped ZnO nanoparticles were investigated. The inverted phosphorescent devices were prepared using the synthesized nanoparticles. The inverted devices with Li-doped nanoparticles exhibited higher external quantum efficiency (EQE) due to better charge balance. The maximum EQE of 18.2 % was achieved in the 15 % Li-doped device.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"312 ","pages":"Article 117889"},"PeriodicalIF":4.0,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143946487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Transparent film of carbon nanotubes/Ni(OH)2 nanocomposite for application in alkaline batteries 碳纳米管/Ni(OH)2纳米复合材料透明膜在碱性电池中的应用

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-05-14 DOI: 10.1016/j.synthmet.2025.117886

Daniela Z. Mezalira , Eduardo G.C. Neiva , Aldo J.G. Zarbin

{"title":"Transparent film of carbon nanotubes/Ni(OH)2 nanocomposite for application in alkaline batteries","authors":"Daniela Z. Mezalira , Eduardo G.C. Neiva , Aldo J.G. Zarbin","doi":"10.1016/j.synthmet.2025.117886","DOIUrl":"10.1016/j.synthmet.2025.117886","url":null,"abstract":"<div><div>A nanocomposite composed of multi-walled carbon nanotubes (MWCNTs) and Ni(OH)₂ nanoparticles was synthesized, characterized, and processed into thin films for application as cathodes in alkaline batteries. The synthesis was carried out using a modified polyol method, and the thin film was prepared by the liquid-liquid interfacial route (LLIR), enabling uniform film deposition. Structural analysis revealed the formation of α-phase Ni(OH)<sub>2</sub> nanoparticles, which is particularly advantageous for electrochemical applications due to the larger interlayer distances. The presence of MWCNT during synthesis led to significant reduction in Ni(OH)₂ particle size (10–20 nm) compared to the neat Ni(OH)<sub>2</sub> prepared as control (50–80 nm), indicating a nucleating effect induced by MWCNT. The resulting nanocomposite thin film showed high homogeneity, an optical transmittance of 86.3 % at a wavelength of 550 nm, and a thickness of 111 ± 28 nm. Electrochemical measurements in 1 mol L<sup>−1</sup> NaOH solution revealed battery-like charge-discharge behavior in both MWCNT/Ni(OH)<sub>2</sub> and Ni(OH)<sub>2</sub> films. The nanocomposite achieved higher specific capacities, reaching ∼105 mA h g<sup>−1</sup> at 2.8 A g<sup>−1</sup> and ∼ 40 mA h g<sup>−1</sup> at 56 A g<sup>−1</sup>, due to improved conductivity and reduced particle size. In addition, the MWCNT/Ni(OH)<sub>2</sub> exhibited a superior charge-discharge cycling stability, retaining 74 % of its capacity over 2000 cycles at 14 A g<sup>−1</sup>, compared to 65 % for the Ni(OH)<sub>2</sub> control film at 8.2 A g<sup>−1</sup>. This stability at high current rates highlights the MWCNT/Ni(OH)<sub>2</sub> nanocomposite thin film as a promising candidate for high-power energy storage and fast charge delivery applications.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"313 ","pages":"Article 117886"},"PeriodicalIF":4.0,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144089259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Modulating the two photon absorption features of aza-BODIPY derivatives depending on the electron-donating substituents in near-IR region 利用给电子取代基在近红外区调制aza-BODIPY衍生物的双光子吸收特性

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-05-14 DOI: 10.1016/j.synthmet.2025.117887

Anıl Doğan , Halil Yılmaz , Ahmet Karatay , Elif Akhüseyin Yıldız , Gökhan Sevinç , Bahadir Boyacioglu , Huseyin Unver , Mustafa Hayvali , Ayhan Elmali

{"title":"Modulating the two photon absorption features of aza-BODIPY derivatives depending on the electron-donating substituents in near-IR region","authors":"Anıl Doğan , Halil Yılmaz , Ahmet Karatay , Elif Akhüseyin Yıldız , Gökhan Sevinç , Bahadir Boyacioglu , Huseyin Unver , Mustafa Hayvali , Ayhan Elmali","doi":"10.1016/j.synthmet.2025.117887","DOIUrl":"10.1016/j.synthmet.2025.117887","url":null,"abstract":"<div><div>Aza-BODIPY derivatives are promising candidates for optical applications due to their tunable two-photon absorption (TPA) properties in the near-infrared (NIR) region. In this study, symmetrical aza-BODIPY compounds were synthesized and functionalized with electron-donating groups at the 2,6-positions to investigate their impact on TPA and photophysical properties. The compounds exhibited notable hypsochromic shifts and fluorescence quenching, with the highest TPA cross-section observed for <strong>BOD1</strong> (37 GM) at 1000 nm wavelength due to efficient charge transfer characteristics. Density Functional Theory (DFT) calculations provided insights into the electronic structures, revealing that <strong>BOD4</strong> was the most stable, exhibiting complex electronic transitions. The findings suggest that these aza-BODIPY derivatives are suitable candidates for NIR imaging, optical power limiting, and two-photon photodynamic therapy. This study demonstrates the potential of structural modifications to fine-tune TPA properties, paving the way for advanced optical applications.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"313 ","pages":"Article 117887"},"PeriodicalIF":4.0,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Study of the presence of thioindigo in photosensitizers based on phenothiazine: Synthesis and photovoltaic evaluation in DSSCs 噻吩噻嗪类光敏剂中硫代靛蓝的存在研究：DSSCs的合成及光伏评价

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-05-09 DOI: 10.1016/j.synthmet.2025.117885

Mozhgan Hosseinnezhad , Kamaladin Gharanjig , Sohrab Nasiri , Mohsen Fathi

引用次数: 0

Research on the protection of black phosphorus (BP) by the monolayer 7,7,8,8-tetracyanoquinodimethane (TCNQ) 单层7,7,8,8-四氰喹诺二甲烷（TCNQ）对黑磷（BP）的保护作用研究

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-05-09 DOI: 10.1016/j.synthmet.2025.117884

Yuan Zhao , Xiaoliang Liu , Baopeng Yang , Jianhua Zhang , Han Huang , Haipeng Xie , Dongmei Niu , Yongli Gao

{"title":"Research on the protection of black phosphorus (BP) by the monolayer 7,7,8,8-tetracyanoquinodimethane (TCNQ)","authors":"Yuan Zhao , Xiaoliang Liu , Baopeng Yang , Jianhua Zhang , Han Huang , Haipeng Xie , Dongmei Niu , Yongli Gao","doi":"10.1016/j.synthmet.2025.117884","DOIUrl":"10.1016/j.synthmet.2025.117884","url":null,"abstract":"<div><div>Black phosphorus (BP) has attracted widespread attention in multiple research fields due to its excellent optoelectronic properties, such as adjustable direct bandgap, optical and electrical anisotropy. However, the poor air stability of BP limits its practical application. To protect BP through physical isolation and chemical passivation, a strong n-type organic semiconductor, 7,7,8,8-tetracyanoquinodimethane (TCNQ) was deposited on BP. The protective effect and the underlying mechanisms have been comprehensively investigated through various interface characterization techniques and density functional theory (DFT) calculations. It is found that the high adsorption energy (AE) between TCNQ and BP leads to the desorption of TCNQ from BP surface and TCNQ forms a dense monolayer (ML) film on BP in a stable lying configuration, which can protect BP from air exposure to some extent. Due to the higher work function (WF) of TCNQ compared to BP, the electron of BP at the interface are transferred to TCNQ through the quinone ring, resulting in a redistribution of electrons near the quinone ring of TCNQ and a shift of the C <em>1 s</em> peak as well as the Raman peaks of C-C and C-C-H. The electron transfer from BP to TCNQ not only leads to an upward bending of the conduction band (CB) of BP at the interface, increasing the electron transfer barrier (ETB) between BP and O<sub>2</sub>, but also depletes the lone pair electrons of BP at the interface, protecting the shallow layer BP from oxidation and degradation. The ML of TCNQ and the shallow layer of BP significantly delays the contact between inner layer of BP and air, prolonging the stability of BP in air for more than 10 days. In addition, it is also confirmed that ML TCNQ has the minimal impact on the intrinsic structure and properties of BP. This work provides a new strategy for the protection and application of BP.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"312 ","pages":"Article 117884"},"PeriodicalIF":4.0,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143935155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Polyaniline-encapsulated carbon-coated nickel zinc ferrite: A hybrid composite for enhanced absorption-dominant EMI shielding 聚苯胺包封碳包覆镍锌铁氧体：一种增强吸收主导型电磁干扰屏蔽的杂化复合材料

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-05-08 DOI: 10.1016/j.synthmet.2025.117883

Numrah Sultan, Khaqan Shati, Ubaid Ur Rehman, M. Nadeem

{"title":"Polyaniline-encapsulated carbon-coated nickel zinc ferrite: A hybrid composite for enhanced absorption-dominant EMI shielding","authors":"Numrah Sultan, Khaqan Shati, Ubaid Ur Rehman, M. Nadeem","doi":"10.1016/j.synthmet.2025.117883","DOIUrl":"10.1016/j.synthmet.2025.117883","url":null,"abstract":"<div><div>The rapid growth of communication technologies necessitates the development of efficient electromagnetic interference (EMI) shielding materials. This work investigates an unconventional and innovative conducting polymer-based composite (CPC) material for EMI shielding, comprising of carbon coated nickel zinc ferrite (C@NZF) and polyaniline (PANI). The CPC is synthesized sequentially by a sol-gel, hydrothermal, and in-situ polymerization process. The ratio of C@NZF:ANI is kept 1:9, resulting in a lightweight composite with a facile synthesis process. Morphology and phase identification of PANI-C@NZF is analyzed using SEM and XRD analysis. FTIR is performed for functional group identification of the composite. Notably, the composite demonstrates an absorption dominant EMI shielding effectiveness (SE) of 27 dB in X-band, translating to 99.8 % signal attenuation. The average absorption coefficient (A) in the complete frequency range (8.2–12.4 GHz) is found to be 0.63. The high absorption is attributed to the combined effects of dielectric and magnetic properties of PANI and C@NZF. Moreover, the encapsulation of C@NZF by PANI provides multiple interfaces which results in electromagnetic signal attenuation by interfacial polarization. These findings suggest that the PANI-C@NZF composite possesses promising potential as an absorption-based EMI shielding material for applications in EM pollution reduction, telecommunication and defense.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"312 ","pages":"Article 117883"},"PeriodicalIF":4.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143927402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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