Synthetic Metals最新文献_第4页

Improving the efficiency and stability of perovskite solar cells through optimization of the hole-transport layer 通过优化空穴传输层来提高钙钛矿太阳能电池的效率和稳定性

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-03-23 DOI: 10.1016/j.synthmet.2025.117867

S.K. Tazhibayev , B.R. Ilyassov , A.K. Aimukhanov , A.K. Mussabekova , X.S. Rozhkova , M.K. Beisembekov , A.K. Zeinidenov

{"title":"Improving the efficiency and stability of perovskite solar cells through optimization of the hole-transport layer","authors":"S.K. Tazhibayev , B.R. Ilyassov , A.K. Aimukhanov , A.K. Mussabekova , X.S. Rozhkova , M.K. Beisembekov , A.K. Zeinidenov","doi":"10.1016/j.synthmet.2025.117867","DOIUrl":"10.1016/j.synthmet.2025.117867","url":null,"abstract":"<div><div>Perovskite solar cells (PSCs) have emerged as a leading technology in the photovoltaic sector due to their high efficiency and low fabrication cost. However, the performance and stability of PSCs are often limited by the properties of hole transport layers (HTLs). In this study, we explore the use of cobalt phthalocyanine (CoPc) and a composite CoPc/Spiro-OMeTAD layer as HTLs to enhance the efficiency and stability of PSCs. Structural analysis via AFM revealed that the CoPc/Spiro-OMeTAD composite layer possesses a uniform, pinhole-free surface morphology, crucial for minimizing charge recombination. Optical studies demonstrated that these composite layers maintain high transparency while providing effective light absorption. Photoelectrical characterizations showed that PSCs with the CoPc/Spiro-OMeTAD HTLs achieved a power conversion efficiency (PCE) of 18.7 %, outperforming devices with standard Spiro-OMeTAD and single CoPc layers. Moreover, the composite HTLs improved the stability of the PSCs, retaining 84 % of the initial PCE after 300 hours of operation without encapsulation. Impedance spectroscopy indicated that the composite HTLs reduce series resistance and charge transfer resistance of the devices. These findings suggest that CoPc/Spiro-OMeTAD composite layers are promising candidates for enhancing both the efficiency and stability of PSCs.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"312 ","pages":"Article 117867"},"PeriodicalIF":4.0,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704958","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}

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Transparent conductive PEDOT–graphene films from large-flake graphite 透明导电pedot -石墨烯薄膜由大鳞片石墨制成

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-03-23 DOI: 10.1016/j.synthmet.2025.117866

Sean T. McDermott , Brenden Ferland , Jinzhou Liu , Prabodha Abeykoon , Michael J. Joyce , Seth Shuster , Steven L. Suib , Douglas H. Adamson

{"title":"Transparent conductive PEDOT–graphene films from large-flake graphite","authors":"Sean T. McDermott , Brenden Ferland , Jinzhou Liu , Prabodha Abeykoon , Michael J. Joyce , Seth Shuster , Steven L. Suib , Douglas H. Adamson","doi":"10.1016/j.synthmet.2025.117866","DOIUrl":"10.1016/j.synthmet.2025.117866","url":null,"abstract":"<div><div>The demand for affordable, flexible, transparent, and robust thin film electrodes in organic electronics has highlighted the limitations of indium tin oxide (ITO), which suffers from fragility and high costs. Poly(3,4-ethylenedioxythiophene) (PEDOT), particularly when doped with poly(styrene sulfonate) (PSS), has emerged as a promising alternative due to its mechanical flexibility, electrical conductivity, and environmental stability. However, PSS's insulating nature, hygroscopicity, and acidity present significant drawbacks. This study explores an alternative approach using large-flake graphene, exfoliated through a solvent interface trapping method (SITM), as a conductive template for PEDOT polymerization. The resulting PEDOT-graphene films exhibit conductivities reaching 1070 S/cm, surpassing those of previously reported PEDOT-based films. The graphene sheets, acting as templates during vapor-phase polymerization (VPP) of PEDOT, enhance the film's conductivity by increasing electron pathways and crystalline regions within PEDOT. Characterization through SEM, TEM, XRD, Raman spectroscopy, XPS, and UV-Vis spectroscopy confirms the structural and electrical integrity of the films. Additionally, these films demonstrate potential applications in sensing technologies, particularly responsive to volatile organic compounds such as triethylamine. This work presents a scalable method for producing high-conductivity, transparent PEDOT-graphene films, offering a viable alternative to ITO in organic electronic applications.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"312 ","pages":"Article 117866"},"PeriodicalIF":4.0,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715130","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}

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Investigating charge mobility of alternating copolymers: The role of comonomers and electron-lattice interaction 研究交替共聚物的电荷迁移率：共聚单体和电子-晶格相互作用的作用

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-03-13 DOI: 10.1016/j.synthmet.2025.117861

D. Morais, W.S. Dias

{"title":"Investigating charge mobility of alternating copolymers: The role of comonomers and electron-lattice interaction","authors":"D. Morais, W.S. Dias","doi":"10.1016/j.synthmet.2025.117861","DOIUrl":"10.1016/j.synthmet.2025.117861","url":null,"abstract":"<div><div>Unraveling the intricate interplay between charge carriers and molecular vibrations is vital to enhancing charge transport in organic semiconductors. In this study, we employ a tight-binding model calibrated with density functional theory (DFT)-derived parameters to investigate the influence of intermolecular vibrations on the charge transport properties of two specific copolymers: Thienothiophene-Phenylene (Tt-Ph) and Thiophene-Pyrrole (Th-Py). Our findings reveal the emergence of self-trapped excitations with soliton-like profiles, whose mobility is primarily governed by both the electron-lattice interaction and the on-site energies of the comonomers. Stronger electron-lattice coupling reduces the velocity of such hybridized excitations, eventually rendering them dynamically localized (localized) for electron-lattice interactions above a critical strength <em>χ</em><sub><em>c</em></sub>. Extending the analysis to potential alternating copolymer chains, the power-law fitting <span><math><mrow><msub><mrow><mi>v</mi></mrow><mrow><mi>s</mi></mrow></msub><mo>∝</mo><msup><mrow><mrow><mo>(</mo><mrow><msub><mrow><mi>χ</mi></mrow><mrow><mi>c</mi></mrow></msub><mo>−</mo><mi>χ</mi></mrow><mo>)</mo></mrow></mrow><mrow><mn>1</mn><mo>∕</mo><mn>2</mn></mrow></msup></mrow></math></span> for the velocity of soliton-like modes suggests a universal behavior of the underlying charge-lattice coupling. Furthermore, we unveil a nonlinear dependence between the critical carrier-lattice interaction <em>χ</em><sub><em>c</em></sub> and the effective difference in on-site energies of the comonomers, underscoring the delicate interplay between copolymer structure and charge-lattice interactions.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"312 ","pages":"Article 117861"},"PeriodicalIF":4.0,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143643734","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}

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Up-and-coming MXene-based nanohybrids for electrochemical non-enzymatic glucose sensing: A brief review 电化学非酶葡萄糖传感中基于mxene纳米杂化物的研究进展

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-03-13 DOI: 10.1016/j.synthmet.2025.117863

Ainul Maghfirah , Henry Setiyanto , Grandprix T.M. Kadja

引用次数: 0

Novel synthesis of reduced graphene oxide-decorated antimony sulfide nanoparticles via pulsed laser ablation in liquid for photovoltaic applications 通过脉冲激光烧蚀液态还原氧化石墨烯装饰硫化锑纳米粒子的新合成，用于光伏应用

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-03-12 DOI: 10.1016/j.synthmet.2025.117862

Ali K. Shakir , M.D. Nurhafizah , Amer Al-Nafiey , Rafea Tuama Ahmed , Mohammed S. Hadi

{"title":"Novel synthesis of reduced graphene oxide-decorated antimony sulfide nanoparticles via pulsed laser ablation in liquid for photovoltaic applications","authors":"Ali K. Shakir , M.D. Nurhafizah , Amer Al-Nafiey , Rafea Tuama Ahmed , Mohammed S. Hadi","doi":"10.1016/j.synthmet.2025.117862","DOIUrl":"10.1016/j.synthmet.2025.117862","url":null,"abstract":"<div><div>In this study, a novel reduced graphene oxide (rGO)-decorated antimony sulfide (Sb₂S₃) nanocomposite was successfully synthesized using the pulsed laser ablation in liquid (PLAL) technique. A 1064 nm Nd:YAG laser was employed to ablate an Sb₂S₃ target submerged in Chlorobenzene containing rGO sheets, facilitating a one-step, environmentally friendly synthesis process. The rGO-Sb₂S₃ nanocomposite exhibited improved optical absorption properties and reduced bandgap energy (1.62 eV) compared to pure Sb₂S₃ (1.90 eV) and rGO (1.32 eV), attributed to enhanced interactions between rGO and Sb₂S₃ nanoparticles. Comprehensive characterization, including UV–visible spectroscopy (UV-Vis), Fourier Transform Infrared (FTIR), micro-Raman spectroscopy, X-ray diffraction (XRD), and high-resolution transmission electron microscopy (HRTEM), confirmed the successful formation of rGO-Sb₂S₃ with well-dispersed Sb₂S₃ nanospheres (2–20 nm) anchored onto rGO sheets. The synergistic properties of rGO and Sb₂S₃, including improved charge separation and broad light absorption, make this nanocomposite a promising candidate for photocatalytic and photovoltaic applications. This work highlights the potential of PLAL for scalable, reproducible, and efficient synthesis of advanced nanocomposites for energy and environmental applications.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"312 ","pages":"Article 117862"},"PeriodicalIF":4.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628411","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}

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Semi-planar-semi-twisted selenophen-containing narrow bandgap small molecules for efficient polymer solar cells 用于高效聚合物太阳能电池的半平面-半扭曲含硒酚的窄带隙小分子

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-03-11 DOI: 10.1016/j.synthmet.2025.117864

Weiping Wang , Baofeng Zhao , Jiahao Liu , Liuchang Wang , Tianyi Zhao , Zhiyuan Cong , Haimei Wu , Zhi Yang , Zihui Meng , Chao Gao

{"title":"Semi-planar-semi-twisted selenophen-containing narrow bandgap small molecules for efficient polymer solar cells","authors":"Weiping Wang , Baofeng Zhao , Jiahao Liu , Liuchang Wang , Tianyi Zhao , Zhiyuan Cong , Haimei Wu , Zhi Yang , Zihui Meng , Chao Gao","doi":"10.1016/j.synthmet.2025.117864","DOIUrl":"10.1016/j.synthmet.2025.117864","url":null,"abstract":"<div><div>Polymer solar cells (PSCs) containing small molecule electron acceptors (SMAs) with twisted backbones offer many advantages over flat molecules, including the ability to move molecular energy levels, enhanced charge extraction properties, higher extinction coefficients, longer carrier lifetimes, and lower recombination rates. Collectively, these advantages contribute to the power conversion efficiency (PCE) of PSCs. However, the restricted absorption spectra of twisted SMAs present a challenge to further performance improvement. To address this issue, three acceptor-π-donor-π’-acceptor-type SMAs with indacenodiselenophene (IDSe) segment as the electron-giving unit and halogenated end groups were designed and synthesized. Taking advantage of the strong electron donating ability of the IDSe fusing ring core and the introduced isomerized π bridged segments, all SMAs exhibit red-shifted absorption in the near-infrared region and successfully generate a semi-planar semi-twisted backbone. When blended with J52, the devices of the two halogenated SMAs (<strong>h-IDSe-4F</strong> and <strong>h-IDSe-4Cl</strong>) showed preferable exciton dissociations, low recombination rates, balanced and high charge mobilities, leading to high efficiencies of 9.33 % and 9.03 %, higher than the 5.07 % of the <strong>h-IDSe</strong>-based device. This work demonstrates that tuning the planarity of the conjugated backbone, fine-tuning the core unit, and halogenation substitutions in the end groups have a significant impact on regulating the light-harvesting and performance of organic photovoltaic devices.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"312 ","pages":"Article 117864"},"PeriodicalIF":4.0,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628412","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}

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Retraction notice to achieving enhanced electromagnetic shielding by novel flexible rubber based nanocomposite with the incorporation of nickel spinal ferrites and polyaniline [Synth. Met. 295 (2023) 117339] 基于镍脊铁氧体和聚苯胺的新型柔性橡胶基纳米复合材料增强电磁屏蔽的研究进展[j]。会议。295 (2023)117339]

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-03-10 DOI: 10.1016/j.synthmet.2025.117859

Iqra Abdul Rashid , Ameer Hamza , Siraj Asim , Khadija Zubair , HM Fayzan Shakir , Ayesha Afzal , Zakariya Zubair

引用次数: 0

Retraction notice to “Achieving enhanced EMI shielding with novel non-woven fabric using nylon fiber coated with polyaniline via in situ polymerization” [Synth. Met. 293 (2023) 117250] 对“通过原位聚合使用涂有聚苯胺的尼龙纤维的新型无纺布实现增强的电磁干扰屏蔽”的撤回通知[Synth。会议。293 (2023)117250]

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-03-10 DOI: 10.1016/j.synthmet.2025.117860

Salman Atir , S. Hasan Ali , S. Sadia Nimra , Tingkai Zhao , H.M. Fayzan Shakir , Z.A. Rehan

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Proton exchange assisted charge conduction and enhanced humidity sensitivity of polyvinyl pyrrolidone incorporated polyaniline 质子交换辅助电荷传导并增强了聚苯胺聚乙烯吡咯烷酮的湿度敏感性

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-02-25 DOI: 10.1016/j.synthmet.2025.117858

Debadrita Dasgupta, Jayanta Das, Sauradeep Das, Biswajit Saha

{"title":"Proton exchange assisted charge conduction and enhanced humidity sensitivity of polyvinyl pyrrolidone incorporated polyaniline","authors":"Debadrita Dasgupta, Jayanta Das, Sauradeep Das, Biswajit Saha","doi":"10.1016/j.synthmet.2025.117858","DOIUrl":"10.1016/j.synthmet.2025.117858","url":null,"abstract":"<div><div>Polyaniline has been prepared by a chemical in situ polymerization process using ammonium peroxodisulphate (APS) as the polymerizing agent. The prepared polyaniline was mixed with polyvinyl pyrrolidone (PVP) at different weight percentages in aqueous medium and painted on paper substrates. The electrically conductive flexible polyvinyl pyrrolidone incorporated polyaniline (P-PVP) samples show superior resistive sensitivity with varying relative humidity of the environment at room temperature. Addition of polyvinyl pyrrolidone into polyaniline powder reduced the electrical conductivity of the composites which in turn increased the sensitivity towards relative humidity. Electrical charge conduction processes in the prepared P-PVP samples were studied to analyze the resistive humidity sensing properties. The systematic and notable response of resistive behavior of the samples with humidity variation has been the key inspiration for studying the humidity sensing behavior of the prepared samples. The effect of compositional variation with different polyvinyl pyrrolidone content has also been studied. The experimental observations indicate that the P-PVP system can be a potential candidate as an active electronic material for designing lightweight, and portable humidity sensor on flexible substrate, adaptable to various technologies. The reported sensor system having deposited on a paper substrate has become cost-effective, and biodegradable, and thus it can be employed as a use-and-throw type humidity sensor.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"312 ","pages":"Article 117858"},"PeriodicalIF":4.0,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143550153","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

Enhancing electrochemical energy storage performance of graphene oxide with 1,5-naphthalene diamine in supercapacitors application 提高1,5-萘二胺氧化石墨烯在超级电容器中的电化学储能性能

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-02-24 DOI: 10.1016/j.synthmet.2025.117855

Atefeh Omidi-Dargahi , Mohammad Bigdeloo , Ali Ehsani , Mohammad Ali Bigdeloo

{"title":"Enhancing electrochemical energy storage performance of graphene oxide with 1,5-naphthalene diamine in supercapacitors application","authors":"Atefeh Omidi-Dargahi , Mohammad Bigdeloo , Ali Ehsani , Mohammad Ali Bigdeloo","doi":"10.1016/j.synthmet.2025.117855","DOIUrl":"10.1016/j.synthmet.2025.117855","url":null,"abstract":"<div><div>Enhancing the electrochemical performance of carbon-based materials for energy storage devices typically involves key strategies, such as intentionally modifying the composition through functionalization. This study demonstrated the performance of functionalized graphene oxide (FGO) electrodes for supercapacitors (SCs) modified using 1,5-naphthalene diamine (1,5-NPDA). We have synthesized GO and FGO structures using a gentle, efficient approach under environmentally friendly conditions for high-performance SCs. Morphological investigation was carried out through field-emission scanning electron microscopy (FE-SEM) images and the layered structure with appropriate porosity was recorded. In addition, characterization tests such as Energy-dispersive X-ray spectroscopy (EDX), elemental mapping, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and Brunauer–Emmett–Teller (BET) confirmed the studied FGO's structure and its suitability for use in the SC system. The as-prepared FGO has a high specific capacitance (Cs) of 1125 F g<sup>−1</sup> at 1 A g<sup>−1</sup> in 1 M LiClO<sub>4</sub> electrolyte. This electrode provides the energy density of 90 Wh kg<sup>−1</sup> at the highest amount of a power density of 8.133 kW kg<sup>−1</sup> with a 97.2 % capacitance retention after 10000 cycles. These carbon-based electrode materials offer valuable insights and a theoretical foundation for utilizing FGOs in energy storage. The results of this study, particularly regarding energy density and power density, opened up new possibilities for using FGO in SCs and reinforced optimism about addressing the limitations of SCs, specifically their low energy density.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"312 ","pages":"Article 117855"},"PeriodicalIF":4.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143488676","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