Synthetic Metals最新文献_第6页

A concise and efficient solution method for the preparation of high performance electrochromic peryleneimide derivative/Cu2O hybrid films 一种简洁高效的制备高性能电致变色苝酰亚胺衍生物/Cu2O杂化膜的溶液法

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-07-17 DOI: 10.1016/j.synthmet.2025.117918

Yuhao Lu , Mi Ouyang , Bowen Tao , Qiqi Hua , Weijun Li , Wenjing Wu , Ru Bai , Junlei Liu , Ling Zhang , Xiaojing Lv , Cheng Zhang

{"title":"A concise and efficient solution method for the preparation of high performance electrochromic peryleneimide derivative/Cu2O hybrid films","authors":"Yuhao Lu , Mi Ouyang , Bowen Tao , Qiqi Hua , Weijun Li , Wenjing Wu , Ru Bai , Junlei Liu , Ling Zhang , Xiaojing Lv , Cheng Zhang","doi":"10.1016/j.synthmet.2025.117918","DOIUrl":"10.1016/j.synthmet.2025.117918","url":null,"abstract":"<div><div>The preparation of high-performance films through a simple and low-cost route has been one of the goals pursued in the field of electrochromism (EC). As a common n-type organic dye, perylimide derivatives have been attracting attention due to their advantages such as multi-colors change, fast switch time and high optical contrast. However, their inferior solubility and stability limit the wide application of these compounds. In this work, the hybridized films of PDI-COOH Cu<sub>2</sub>O@ and PCl-COOH Cu<sub>2</sub>O@ were obtained using a simple solution method by immersing the Cu<sub>2</sub>O films obtained via electrodeposition in water-soluble perylimide derivatives PDI-COOH and PCl-COOH. The ligand-metal binding via coordination bond and intermolecular π-π stacking were determined by Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM). Besides, the two films exhibited reversible redox activity and cathodic electrochromic properties from pink to purple (-0.7 V). Notably, the PDI-COOHCu<sub>2</sub>O@ hybrid films show faster switching time (6.29 s for coloring and 4.94 s for bleaching), better stability (93.63 %) contrast retention after 1800 cycles), lower driving voltage (-0.7 V∼0.4 V) and higher coloring efficiency (271.18 cm<sup>2</sup>/C). This method of constructing organic-inorganic hybrid electrochromic materials using coordination bonds provides an effective strategy to facilitate the large-scale and low-cost production of functional thin films. The method to construct organic-inorganic hybrid electrochromic materials using coordination bonds provides an effective and convenient strategy to facilitate the large-scale and low-cost production of functional films.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"314 ","pages":"Article 117918"},"PeriodicalIF":4.0,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144662470","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

Investigation of electrochromic properties of asymmetric alkylated viologen for all-in-one gel-based device for smart window application 不对称烷基化紫外光电致变色性能的研究

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-07-12 DOI: 10.1016/j.synthmet.2025.117917

Amit Kumar, Amarjeet Kaur

{"title":"Investigation of electrochromic properties of asymmetric alkylated viologen for all-in-one gel-based device for smart window application","authors":"Amit Kumar, Amarjeet Kaur","doi":"10.1016/j.synthmet.2025.117917","DOIUrl":"10.1016/j.synthmet.2025.117917","url":null,"abstract":"<div><div>Here in this work, we report the synthesis and electrochromic features of an asymmetric alkylated viologen i.e. 1-benzyl-1′-pentyl-[4,4′-bipyridine]-1,1′-diium bromide (AS-BNZ-P Vio) for smart window applications. This material has been synthesized from its basic unit i.e. 4,4’- bipyridine by attaching pentyl and benzyl units to it. To ensure the successful synthesis, the compound has been characterized by nuclear magnetic resonance(NMR) and Fourier transform infrared (FTIR) spectroscopy. AS-BNZ-P Vio has been disseminated in a polyvinyl alcohol (PVA) gel matrix along with a ferro-ferricyanide redox mediator sandwiched between two FTO-coated glasses for the fabrication of an electrochromic device to investigate the real-time application. Using cyclic voltammetry, chronoamperometry and in situ UV–vis spectroscopy, the electrochemical behavior and electrochromic features of the fabricated device were explored. The fabricated all-in-one gel-based device is found to be working efficiently in numerous wavelength regions with an optical contrast of 67 % (359 nm), 70.5 % (466 nm), and 70.6 % (650 nm), 82.3 % at 750 nm and a coloration efficiency of 126.6 cm<sup>2</sup>/C. The device exhibits a retention of 52 % and 61 % of its initial amount in terms of optical contrast and current density, respectively. The device has a quick time response of 3.0/0.3 s for its coloration/bleaching process. Such an all-in-one gel-based Electrochromic (EC) device with superior coloration efficiency and rapid response time has significant potential for the future of device applications.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"314 ","pages":"Article 117917"},"PeriodicalIF":4.0,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144655494","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

Corrigendum to “Design of new first and fifth generation OLED emitters by doping 12,12-dimethyl-7-phenyl-7,12-dihydrobenzo[a]acridine-3-carbonitrile (BACN): DFT study” [Synth. Met. 312 (2025) 117879] “通过掺杂12,12-二甲基-7-苯基-7,12-二氢苯并[a]吖啶-3-碳腈（BACN）设计新的第一代和第五代OLED发射体：DFT研究”的勘误表[Synth]。会议。312 (2025)117879]

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-07-04 DOI: 10.1016/j.synthmet.2025.117916

Pierre Ferdinand Bissi Nyandou , Patrick Noudem , Côme Damien Désiré Mveme , David Fouejio , Serge Sylvain Zekeng

引用次数: 0

Enhanced stability and performance of PEDOT:PSS films with bi-metallic nanoparticles for room-temperature ethanol gas sensors devices 用于室温乙醇气体传感器装置的双金属纳米颗粒PEDOT:PSS薄膜的稳定性和性能增强

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-07-03 DOI: 10.1016/j.synthmet.2025.117911

Luana Wouk , Amanda Figueiredo Pereira , Marcelo Eising , Joao Paulo Araújo Souza , Maria Luiza Miranda Rocco , Lucimara Stolz Roman , Marcela Mohallem Oliveira

{"title":"Enhanced stability and performance of PEDOT:PSS films with bi-metallic nanoparticles for room-temperature ethanol gas sensors devices","authors":"Luana Wouk , Amanda Figueiredo Pereira , Marcelo Eising , Joao Paulo Araújo Souza , Maria Luiza Miranda Rocco , Lucimara Stolz Roman , Marcela Mohallem Oliveira","doi":"10.1016/j.synthmet.2025.117911","DOIUrl":"10.1016/j.synthmet.2025.117911","url":null,"abstract":"<div><div>This work presents the development of ethanol vapor sensors operating at room temperature, based on Poli(3,4-etilenodioxitiofeno) poliestireno sulfonato (PEDOT:PSS) films modified with bimetallic silver (Ag) and gold (Au) nanoparticles (Np) deposited in a multilayer structure. The devices made with the Ag-2/Au-3/PEDOT:PSS configuration showed superior performance, with a response of 43.1 %, response time of 48 s and recovery time of 78 s, compared to the pure PEDOT:PSS film, with a response of 40 %, 88 s and 132 s, respectively. Morphological analysis by Scanning Electron Microscopy indicated average particle sizes of 5.1 nm (Ag-2/Au-3) and 3.7 nm (Au<sup>−3</sup>/Ag<sup>−2</sup>), while UV-Vis spectroscopy revealed plasmon resonance peaks at 540 nm and 542 nm. X-ray diffraction confirmed the presence of crystalline Ag and Au phases. NEXAFS spectra at the sulphur K-edge revealed a longer electronic delocalization time for Ag<sup>−2</sup>/Au<sup>−3</sup> (up to 10.15 fs), associated with the lower orientation of the PEDOT chain and, consequently, greater interaction with ethanol. Illumination with a 2 V white Light-Emitting Diode led to a 74 % increase in detection response and greater stability, with degradation of only 5 % after 10 cycles, compared to 17 % without illumination. Adopting a thermal route for nanoparticle synthesis, rather than the chemical route, resulted in a slight increase in sensory response, attributed to the reduction in particle size. The results highlight the bimetallic nanoparticles and plasmonic excitation in improving the sensitivity and stability of the sensors.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"313 ","pages":"Article 117911"},"PeriodicalIF":4.0,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144604109","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

Computational design of BODIPY-based donor-acceptor-donor molecules for enhanced organic solar cells: A DFT and TD-DFT study 基于bodipy的有机太阳能电池供体-受体-供体分子的计算设计：DFT和TD-DFT研究

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-06-28 DOI: 10.1016/j.synthmet.2025.117910

Adel Alhowyan , Wael A. Mahdi , Ahmed Obaidullah

{"title":"Computational design of BODIPY-based donor-acceptor-donor molecules for enhanced organic solar cells: A DFT and TD-DFT study","authors":"Adel Alhowyan , Wael A. Mahdi , Ahmed Obaidullah","doi":"10.1016/j.synthmet.2025.117910","DOIUrl":"10.1016/j.synthmet.2025.117910","url":null,"abstract":"<div><div>Developing donor-acceptor-donor (D-A-D) molecular structures is essential in advancing organic solar cell technology due to their ability to enhance photovoltaic performance. Recently, Ting Wei and colleagues synthesized a small molecular D-A-D structure (BP-R) derived from the BODIPY skeleton and demonstrated its effectiveness in organic solar cells. Inspired by this work, we designed new BODIPY-based D-A-D structures and computationally evaluated the effect of the new electron-donating units. The structures developed in this work consist of the central BODIPY core, which is attached to the electron-donating groups of cyclopentadithiophene (CPDT), dithieno[3,2-b:2′,3′-<em>d</em>]pyrrole (DTP), and dithienosilole (DTS) from positions 3,5 and 8. We analyzed the optical and electronic properties of these new structures using Density Functional Theory (DFT) and Time-Dependent DFT (TD-DFT). Compared with BP-R, our designed molecules showed lower energy gaps, red-shifted absorption spectra, and improved light harvesting efficiency, and BP-DTS emerged as the most promising candidate. This study paves the way for the rational design of advanced BODIPY-based materials to optimize the efficiency and stability of organic solar cells.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"314 ","pages":"Article 117910"},"PeriodicalIF":4.0,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144696923","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

Green synthesis of MXene@TiO₂ nanocomposites for high-performance flexible supercapacitors: Synergistic enhancement via polypyrrole polymerization and dopant engineering 绿色合成用于高性能柔性超级电容器的MXene@TiO₂纳米复合材料：通过聚吡咯聚合和掺杂工程的协同增强

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-06-26 DOI: 10.1016/j.synthmet.2025.117915

Hatice Yasemin Ulgunar Iskender , Osman Eksik , Melih Besir Arvas , Sibel Yazar

{"title":"Green synthesis of MXene@TiO₂ nanocomposites for high-performance flexible supercapacitors: Synergistic enhancement via polypyrrole polymerization and dopant engineering","authors":"Hatice Yasemin Ulgunar Iskender , Osman Eksik , Melih Besir Arvas , Sibel Yazar","doi":"10.1016/j.synthmet.2025.117915","DOIUrl":"10.1016/j.synthmet.2025.117915","url":null,"abstract":"<div><div>Titanium dioxide (TiO<sub>2</sub>) is a material with high chemical stability and safety characteristics, offering a large energy storage capacity. MXene (Ti₃C₂Tₓ transition metal carbides), on the other hand, is notable for its high electrical conductivity and excellent ion transport properties. These materials serve as ideal electrode materials for high-capacity, fast-charging, and long-cycle-life batteries and supercapacitors. In this study, nanoparticles with dimensions of 13–60 nm were successfully synthesized using the green synthesis method. The interface size that enhances electrode/electrolyte interaction in supercapacitor electrode materials and the presence of materials exhibiting redox behavior increased the supercapacitor performance of polypyrrole (PPy) by 16 times. The charge storage properties of PPy/MXene, PPy/MXene/TiO<sub>2</sub>GC, and PPy/MXene@TiO<sub>2</sub>GC electrode materials at different concentrations and through different synthesis methods were compared. The electrode material manufactured at PPy(10 mg)/MXene@TiO<sub>2</sub>GC(20 mg) weights exhibited a specific capacitance value of 467.7 F g<sup>−1</sup>, determined at a scan rate of 5 mV s<sup>−1</sup> in the 3-electrode system. A symmetrical device was created from the electrodes formed by coating this electrode material on wearable flexible carbon felt. According to the results obtained, the highest energy density achieved was 5.0 Wh/kg at 0.1 mA cm<sup>−2</sup>, and the highest power density value achieved was 1000 W/kg at 1.0 mA cm<sup>−2</sup>. It was observed that the symmetrical supercapacitor with 10,000 cycles retained 82.03 % of its capacitance.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"313 ","pages":"Article 117915"},"PeriodicalIF":4.0,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144535640","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

Direct electrodeposition of adherent ultra-thin polypyrrole films on minimally pretreated silicon for localized biofunctionalization 直接电沉积超薄聚吡咯薄膜在微预处理硅上的局部生物功能化

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-06-24 DOI: 10.1016/j.synthmet.2025.117913

Abdulghani Ismail , Adnane Bouzina , Stéphane Tawil , Marine Duplantier , Yoann Roupioz , Arnaud Buhot , Loic Leroy , Florence Duclairoir , Pascal Mailley , Aurélie Bouchet-Spinelli

{"title":"Direct electrodeposition of adherent ultra-thin polypyrrole films on minimally pretreated silicon for localized biofunctionalization","authors":"Abdulghani Ismail , Adnane Bouzina , Stéphane Tawil , Marine Duplantier , Yoann Roupioz , Arnaud Buhot , Loic Leroy , Florence Duclairoir , Pascal Mailley , Aurélie Bouchet-Spinelli","doi":"10.1016/j.synthmet.2025.117913","DOIUrl":"10.1016/j.synthmet.2025.117913","url":null,"abstract":"<div><div>Silicon is a valuable substrate for the design of biosensors and for micro/nanofluidic device fabrication, yet it remains challenging to achieve localized, tunable and robust surface functionalization. Existing methods such as hydrosylilation, silanization and electrografting often require multistep processing and harsh reagents like hydrofluoric acid. In this work, we introduce a one-step, aqueous electropolymerization strategy for directly functionalizing native oxide-bearing silicon with ultrathin polypyrrole (PPy) films. This is made possible by a simple dual pretreatment (plasma and oven) that enables stable, adherent PPy film formation using silicon as the working electrode. This film could be furtherly overoxidized to tune its conductivity and electroactivity. Homogeneous films with thicknesses ranging from 9 to ∼70 nm were obtained and characterized by AFM, SEM, ellipsometry, XPS, Raman spectroscopy, and FTIR/ATR. Furthermore, the films were biofunctionalized with oligonucleotides or antibodies via co-electropolymerization with pyrrole conjugates. Fluorescence-based assays confirmed both the specificity and stability of biomolecule grafting. This approach offers scalable and biocompatible strategy for the fabrication of silicon-based biosensors and nanofluidic platforms requiring precise control of film morphology, surface charge, electrical properties, and functional groups.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"313 ","pages":"Article 117913"},"PeriodicalIF":4.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144517496","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

Fully printed organic photovoltaic employing F and N co-doped graphene oxide/polyaniline as hole extraction layer and copper nanowires as transparent conductive electrode 采用F和N共掺杂氧化石墨烯/聚苯胺作为孔提取层，铜纳米线作为透明导电电极的全印刷有机光伏

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-06-24 DOI: 10.1016/j.synthmet.2025.117914

Nur Najiha binti Ahmad Rasid , Nur Wardina Syahirah binti Mohamad Fadil , Wilson Jose da Silva , Peng Gao , Abd. Rashid bin Mohd Yusoff

{"title":"Fully printed organic photovoltaic employing F and N co-doped graphene oxide/polyaniline as hole extraction layer and copper nanowires as transparent conductive electrode","authors":"Nur Najiha binti Ahmad Rasid , Nur Wardina Syahirah binti Mohamad Fadil , Wilson Jose da Silva , Peng Gao , Abd. Rashid bin Mohd Yusoff","doi":"10.1016/j.synthmet.2025.117914","DOIUrl":"10.1016/j.synthmet.2025.117914","url":null,"abstract":"<div><div>Organic photovoltaics (OPVs) hold great promise for flexible and lightweight solar energy applications; however, their long-term stability and efficiency remain constrained by the performance of interfacial layers. In particular, the widely used hole extraction layer (HEL) material, PEDOT:PSS, suffers from intrinsic acidity and moisture sensitivity, which adversely affect device longevity. In this study, we report a novel HEL based on fluorine and nitrogen co-doped graphene oxide-polyaniline (FNGO/PANI) synthesized via in situ oxidative polymerization of aniline in the presence of doped graphene oxide under acidic conditions. The co-doping strategy modulates the band structure of graphene oxide, enabling bandgap formation and favorable energy-level alignment while preserving carrier mobility. The FNGO/PANI composite exhibits excellent film uniformity, solution processability, and compatibility with low-temperature annealing (120 °C), making it suitable for flexible substrates and scalable fabrication. When integrated into fully printed OPVs utilizing copper nanowire (Cu NW) transparent conductive electrodes and a conventional bulk heterojunction active layer, devices incorporating FNGO/PANI as the HEL achieve a short-circuit current density (J<sub>sc</sub>) of 16.90 mA cm⁻², open-circuit voltage (V<sub>oc</sub>) of 0.80 V, fill factor (FF) of 69.82 %, and a power conversion efficiency (PCE) of 9.44 %. These results represent a significant improvement over devices using FNGO alone and demonstrate the synergistic benefits of co-doping and polymer integration. The findings highlight the potential of FNGO/PANI as a high-performance, solution-processable HEL for next-generation, fully printed OPV technologies.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"313 ","pages":"Article 117914"},"PeriodicalIF":4.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144502736","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

Multi-scale Co-MOF derived Co-N/C@graphene hybrid aerogel for effective electromagnetic wave absorption 多尺度Co-MOF衍生Co-N/C@graphene混合气凝胶的有效电磁波吸收

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-06-19 DOI: 10.1016/j.synthmet.2025.117909

Ran Xu , Man He , Haoyuan Li , Shuangjiang Feng , Yongjuan Wang , Xiaohai Bu , Yuming Zhou

{"title":"Multi-scale Co-MOF derived Co-N/C@graphene hybrid aerogel for effective electromagnetic wave absorption","authors":"Ran Xu , Man He , Haoyuan Li , Shuangjiang Feng , Yongjuan Wang , Xiaohai Bu , Yuming Zhou","doi":"10.1016/j.synthmet.2025.117909","DOIUrl":"10.1016/j.synthmet.2025.117909","url":null,"abstract":"<div><div>The strategy of customizing MOF-derived electromagnetic wave (EMW) absorbing materials through the construction of precursor size has become a new research direction. While exploring the dimensional adaptability of Co-MOF derivatives in graphene hybrid aerogel for electromagnetic wave absorption is not widely researched, manipulating the compositions and microstructures of EMW absorbing materials has been found to afford superior EMW absorption. Herein, a series of Co-N/C@graphene hybrid aerogel (CNGA) were successfully synthesized by integrating graphene and multi-scale Co-MOF derivatives which are derived from multi-scale Co-MOF precursors. The results displayed the CNGA containing nanoscale Co-MOF derivatives at a 20 wt% filler ratio exhibited the optimal reflection loss (−46.8 dB, 2.7 mm) and the maximum effective absorption bandwidth (5.3 GHz, 2.1 mm). The exceptional EMW absorption properties are credited to the collaborative impact of distinctive loss mechanisms benefited from the small particle size of Co-MOF derivatives in CNGA and appropriate filler ratio. This work demonstrates the correlations between the size of Co-MOF derivatives and electromagnetic parameters of CNGA, and provides a guidance for the development of advanced hybrid aerogel electromagnetic wave absorbing materials.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"313 ","pages":"Article 117909"},"PeriodicalIF":4.0,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144479946","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

The influence of surface defects in SnO2 thin films prepared from different alcohol solvents on electron transport in polymer solar cells 不同醇溶剂制备的SnO2薄膜表面缺陷对聚合物太阳能电池电子输运的影响

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-06-18 DOI: 10.1016/j.synthmet.2025.117907

A.K. Mussabekova, A.K. Zeinidenov, S.K. Tazhibayev, G.I. Omarbekova, D.R. Abeuov, A.K. Aimukhanov

{"title":"The influence of surface defects in SnO2 thin films prepared from different alcohol solvents on electron transport in polymer solar cells","authors":"A.K. Mussabekova, A.K. Zeinidenov, S.K. Tazhibayev, G.I. Omarbekova, D.R. Abeuov, A.K. Aimukhanov","doi":"10.1016/j.synthmet.2025.117907","DOIUrl":"10.1016/j.synthmet.2025.117907","url":null,"abstract":"<div><div>The study demonstrates the influence of surface defects in tin dioxide (SnO<sub>2</sub>) thin films, formed by synthesis from different alcoholic solvents, on efficiency of a polymer solar cell. The influence of the boiling point of alcohol solvents on the surface properties and the quality of the boundary interface of SnO<sub>2</sub> films was established. It is shown that the optical bandgap width and Urbach energy depend on the defectiveness of the SnO<sub>2</sub> thin films prepared from different alcoholic solvents. According to EDX data, all prepared films exhibit better stoichiometry. It has been established that the luminescence spectra of the films are associated with the formation of three emission centers, formed by defects such as interstitial tin or oxygen vacancies. Raman spectroscopy measurements of the films indicate the presence of oxygen vacancies, with their surface concentration depending on the type of alcohol solvent used in the synthesis. It is shown that in organic solar cells, the defectiveness of the SnO<sub>2</sub> film structure significantly affects the density of injected electrons in SnO<sub>2</sub>. It is demonstrated that in SnO<sub>2</sub> films synthesized using butanol, the lower concentration of surface defects reduces electron-hole recombination at the PTB7-TH:ITIC/SnO<sub>2</sub> interface, resulting in an increase in the values of the OSC current-voltage characteristics.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"313 ","pages":"Article 117907"},"PeriodicalIF":4.0,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144322158","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