Synthetic Metals最新文献_第4页

Difluorinated benzothiadiazole based donor-acceptor electrochromic polymers with tunable optoelectronic properties by varying the thiophene donor units 通过改变噻吩给体单元具有可调谐光电性能的二氟化苯并噻唑基给体-受体电致变色聚合物

IF 4.6 3区材料科学

Synthetic Metals Pub Date : 2025-08-23 DOI: 10.1016/j.synthmet.2025.117946

Zhuang Ren, Jiajun Zhou, Daize Mo, Pengjie Chao

{"title":"Difluorinated benzothiadiazole based donor-acceptor electrochromic polymers with tunable optoelectronic properties by varying the thiophene donor units","authors":"Zhuang Ren, Jiajun Zhou, Daize Mo, Pengjie Chao","doi":"10.1016/j.synthmet.2025.117946","DOIUrl":"10.1016/j.synthmet.2025.117946","url":null,"abstract":"<div><div>In this study, two difluorinated D-A polymers, P(FF-Th) and P(FF-EDOT), were prepared through electrochemical deposition method. The two polymers originated from difluorinated D-π-A-π-D monomers were synthesized via Stille coupling, using thiophene and EDOT as donors. Subsequently, several analytical techniques were employed to evaluate the optoelectronic and electrochromic properties of the two difluorinated D-A polymers. Furthermore, to reveal the intrinsic mechanisms influencing their performance, the impact of the thiophene donor units' structure on the electrochromic properties of the synthesized polymers was thoroughly explored. Contrary to FF-Th, FF-EDOT features a lower initial oxidation potential, thereby easing the synthesis of superior-quality difluorinated polymers with a diminished polymerization potential. In addition, the difluorinated P(FF-EDOT) films retain an impressive 77.4 % of their redox activity even after 1000 cycles. The fluorescence spectra and UV of FF-EDOT show a redshift after introducing the EDOT unit. Studies using electrochemical and spectroelectrochemical methods indicate that both polymers have hole-doping and electron-doping characteristics. Notably, P(FF-EDOT) has a smaller optical band gap, lower oxidation potential, and better dynamic stability. The optical band gap of these two newly developed difluorinated D-A polymers can be adjusted, with their electrochromic properties being significantly influenced by the differing electron-donating capacities of their thiophene-based donor units.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"314 ","pages":"Article 117946"},"PeriodicalIF":4.6,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144903757","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

Efficient polymer solar cells with low-temperature thermal annealing and ultraviolet-ozone treatment solution-processible NiO films as ITO-modified films 低温热退火和紫外臭氧处理的高效聚合物太阳能电池——溶液处理的NiO薄膜作为ito改性薄膜

IF 4.6 3区材料科学

Synthetic Metals Pub Date : 2025-08-22 DOI: 10.1016/j.synthmet.2025.117945

Zhiyong Liu

引用次数: 0

Macrostructures of carbon nanotubes for advanced battery application: A comprehensive review 碳纳米管在先进电池中的宏观结构研究综述

IF 4.6 3区材料科学

Synthetic Metals Pub Date : 2025-08-21 DOI: 10.1016/j.synthmet.2025.117944

Arka Ghosh , Nityananda Sahoo , Bappa Das , Parth Patel , Ghananshu Manoj Patil , Vidhi Sachan , Sushovan Basak

{"title":"Macrostructures of carbon nanotubes for advanced battery application: A comprehensive review","authors":"Arka Ghosh , Nityananda Sahoo , Bappa Das , Parth Patel , Ghananshu Manoj Patil , Vidhi Sachan , Sushovan Basak","doi":"10.1016/j.synthmet.2025.117944","DOIUrl":"10.1016/j.synthmet.2025.117944","url":null,"abstract":"<div><div>Carbon nanotube films/fibres are widely valued for their remarkable tensile strength, flexibility, lightweight nature, high specific surface areas, outstanding electrical conductivity, and excellent thermal conductivity. To satisfy a range of application requirements, raw CNTs are frequently pre-treated utilizing different functionalization techniques. Many techniques have been developed in the last few decades to functionalize CNTs and produce a variety of functional materials. Due to their exceptional mechanical and electrical properties, CNTs can be shaped into fibers, films, sponges, and aerogels. This becomes possible due to its unique one-dimensional nanostructure. Due to their unique structural and electrical properties, they serve as excellent building blocks for flexible battery components and offer attractive opportunities as anode materials for LIBs. In contrast to typical graphite-based anodes, this CNT-based anode significantly enhances the reversible lithium-ion capacity. Structural design and strategies for modifying CNTs are highly necessary for optimizing CNT-based LIB anodes. This paper reviews the recent progress on the preparation and properties of CNTs, emphasizing their applications in state-of-the-art energy storage devices and beyond. It further discusses critical issues and future applications of CNT-based devices.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"314 ","pages":"Article 117944"},"PeriodicalIF":4.6,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144888765","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

Applications of conductive polymers in enzymatic biofuel cells: A mini-review 导电性聚合物在酶生物燃料电池中的应用综述

IF 4.6 3区材料科学

Synthetic Metals Pub Date : 2025-08-18 DOI: 10.1016/j.synthmet.2025.117943

Xinxin Xiao

引用次数: 0

Hall effect analysis of conducting doped poly(3,4-ethylenedioxythiophene) (PEDOT) using band and hopping transport mechanisms 利用带跳输运机制分析导电掺杂聚3,4-乙烯二氧噻吩（PEDOT）的霍尔效应

IF 4.6 3区材料科学

Synthetic Metals Pub Date : 2025-08-18 DOI: 10.1016/j.synthmet.2025.117942

Daichi Shimokawa , Yoshinori Nishikitani , Takaya Kubo , Soichi Uchida , Tsuyoshi Asano , Yukio Furukawa

{"title":"Hall effect analysis of conducting doped poly(3,4-ethylenedioxythiophene) (PEDOT) using band and hopping transport mechanisms","authors":"Daichi Shimokawa , Yoshinori Nishikitani , Takaya Kubo , Soichi Uchida , Tsuyoshi Asano , Yukio Furukawa","doi":"10.1016/j.synthmet.2025.117942","DOIUrl":"10.1016/j.synthmet.2025.117942","url":null,"abstract":"<div><div>Hall effect and electrical conductivity measurements were performed on poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) treated with sulfuric acid (PEDOT:Sul) in the temperature range between 21 and 301 K. The observed temperature dependence of the electrical conductivity was expressed as the sum of the metallic band conductivity and variable-range hopping conductivity. The contribution of metallic band conduction was large, indicating that metallic domains are created upon H<sub>2</sub>SO<sub>4</sub> treatment. The charge number density directly derived from the Hall effect was extremely large, on the order of 10<sup>23</sup> cm<sup>−3</sup>, which is called the “improper” Hall effect. Assuming that only delocalized band carriers contribute to the Hall effect, we obtained the charge number densities in metallic conduction using the decomposed conductivities for metallic conduction and variable-range hopping conduction. The obtained values ranged between (3.1 ± 0.2) × 10<sup>21</sup> and (4.7 ± 0.3) × 10<sup>21</sup> cm<sup>−3</sup>.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"314 ","pages":"Article 117942"},"PeriodicalIF":4.6,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144879655","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 concentration down-shifting tetrazines for UV protection of OSCs in hemicellulose polymers; syntheses, properties and solar cell performance 高浓度下移四嗪对半纤维素聚合物中OSCs的紫外线防护太阳能电池的合成、性能和性能

IF 4.6 3区材料科学

Synthetic Metals Pub Date : 2025-08-14 DOI: 10.1016/j.synthmet.2025.117935

Ruoxue He , Marine Petitjean , Pierre Audebert , Vincent Chaleix , Thierry Trigaud , Johann Bouclé , Bernard Ratier

引用次数: 0

Epitaxial molecular heterojunction with spontaneous charge transfer: A novel strong acceptor, perfluorotetraazanaphthacene, on single-crystal pentacene 具有自发电荷转移的外延分子异质结：单晶并五苯上的新型强受体全氟四氮杂萘

IF 4.6 3区材料科学

Synthetic Metals Pub Date : 2025-08-14 DOI: 10.1016/j.synthmet.2025.117941

Yasuo Nakayama , Yuki Koyama , Satoshi Miyata , Junnosuke Miyamoto , Takuya Hosokai , Keisuke Fukutani , Satoshi Kera , Rosantha Kumara , Tomoyuki Koganezawa , Fumiya Kobayashi , Makoto Tadokoro

引用次数: 0

Green solvent-processable poly(3-hexylthiophene) derivative maintains high hole mobility in diodes 绿色溶剂可加工聚（3-己基噻吩）衍生物在二极管中保持高空穴迁移率

IF 4.6 3区材料科学

Synthetic Metals Pub Date : 2025-08-12 DOI: 10.1016/j.synthmet.2025.117940

Lexi R. Knight , Maia M. Tritt , Quynh D. Tran , Honghu Zhang , Lei Zhu , Geneviève Sauvé

{"title":"Green solvent-processable poly(3-hexylthiophene) derivative maintains high hole mobility in diodes","authors":"Lexi R. Knight , Maia M. Tritt , Quynh D. Tran , Honghu Zhang , Lei Zhu , Geneviève Sauvé","doi":"10.1016/j.synthmet.2025.117940","DOIUrl":"10.1016/j.synthmet.2025.117940","url":null,"abstract":"<div><div>The development of environmentally sustainable fabrication methods for organic solar cells (OSCs) is critical to enable their large-scale adoption. Conventional solution-processed OSCs often rely on halogenated, toxic solvents that pose health and environmental risks, limiting their scalability. This is because π-conjugated polymers tend to have a low solubility in non-halogenated solvents. A common strategy to enhance solubility in alternative solvents is through the incorporation of polar solubilizing groups, often on every repeat unit of at least one monomer. However, too many polar side chains tend to disrupt favorable morphology and decrease charge transport properties. In this study, we demonstrate that a minimal degree of side chain functionalization can improve green solvent processability while preserving electrical performance. We tested this hypothesis using our previously reported random copolymer derivative of poly(3-hexylthiophene) (P3HT) where ∼10 mol% of the side chains are 6-pentanoatehexyl side chains. We find that this low-level functionalization significantly broadens the solvents that can be used to process P3HT to less toxic solvents such as <em>o</em>-xylene and anisole. Furthermore, the copolymer processed from greener solvents showed high hole mobilities (∼10⁻<sup>3</sup> cm<sup>2</sup>/Vs by the Space-Charge Limiting Current method in diodes), comparable to P3HT films cast from toxic chloroform. These findings suggest that minimal side-chain modification is a viable strategy for expanding green solvent compatibility while preserving electrical performance, paving the way toward more sustainable organic semiconductor designs.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"314 ","pages":"Article 117940"},"PeriodicalIF":4.6,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144828159","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

Electrodeposited and in situ carbon quantum dot embedded CdS thin films as electron transport layers 电沉积和原位碳量子点嵌入CdS薄膜作为电子传输层

IF 4.6 3区材料科学

Synthetic Metals Pub Date : 2025-08-07 DOI: 10.1016/j.synthmet.2025.117939

Firdevs Aydın , Batuhan Uzun , Meysam Mirzaei-Saatlo , Elnaz Asghari , Demet Asil

{"title":"Electrodeposited and in situ carbon quantum dot embedded CdS thin films as electron transport layers","authors":"Firdevs Aydın , Batuhan Uzun , Meysam Mirzaei-Saatlo , Elnaz Asghari , Demet Asil","doi":"10.1016/j.synthmet.2025.117939","DOIUrl":"10.1016/j.synthmet.2025.117939","url":null,"abstract":"<div><div>Cadmium sulfide (CdS) has been proposed as a promising alternative to zinc oxide (ZnO) electron transport materials, which are widely used in high-performance PbS solar cells but are known to suffer from poor stability and energy misalignment. However, the techniques currently used to grow CdS thin films allow limited control over characteristic properties such as thickness, morphology, and defect density. Herein, we demonstrate that electrodeposition technique can be an excellent method to deposit CdS, and when combined with in situ carbon quantum dot (CQD) embedding, denser films with improved surface uniformity, higher transparency and longer excited state lifetimes can be obtained. This technique, which is cost-effective and implantable on a large scale, allows simultaneous and precise control over thickness and charge carrier density, enabling us to achieve a remarkable efficiency of 7.47 % in CdS/PbS solar cells using an electrodeposited CdS for the first time. Thanks to faster exciton dissociation, interfacial charge transfer and charge carrier collection facilitated by the formation of type-II heterojunction between CQDs and CdS, the in situ embedding technique used in this study can be considered as a strategic approach to achieve higher cell performance in future.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"314 ","pages":"Article 117939"},"PeriodicalIF":4.6,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144809562","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 energy storage performance of polymer composites with molecular semiconductors 提高分子半导体聚合物复合材料的储能性能

IF 4.6 3区材料科学

Synthetic Metals Pub Date : 2025-08-05 DOI: 10.1016/j.synthmet.2025.117938

Zhangmin Yin , Chenxu Lan , Jingchong Liang , Xiaoya Hou , Jie Zhang

{"title":"Enhancing energy storage performance of polymer composites with molecular semiconductors","authors":"Zhangmin Yin , Chenxu Lan , Jingchong Liang , Xiaoya Hou , Jie Zhang","doi":"10.1016/j.synthmet.2025.117938","DOIUrl":"10.1016/j.synthmet.2025.117938","url":null,"abstract":"<div><div>With the ever-increasing demand for advancing clean energy technologies, efficient energy storage devices have attracted significant attention in both research and industrial fields. Dielectric capacitors have advantages of high power density, rapid discharge rates, and excellent stability. Compared to inorganic ceramic materials, polymer-based dielectrics are favored for the fabrication of high-energy capacitors due to their elevated operating voltages and flexible processing capabilities. In this study, the P(VDF-CTFE) polymer matrix is combined with molecular semiconductors, specifically PCBM and ITIC, to enhance the breakdown strength and energy storage density of composite film materials. The introduction of molecular semiconductors promotes the formation of the α phase and improves crystallinity, which in turn contributes to the reduction of dielectric loss and the enhancement of efficiency. With the addition of 1.1 wt% PCBM, the polymer composite dielectric achieves an impressive breakdown strength of 490 MV/m, an energy density of 17 J/cm³ , and a charge-discharge efficiency of 76 %. In comparison, doping with 0.3 wt% ITIC results in a breakdown strength of 409 MV/m, a lower energy density of 8.7 J/cm³ , and a charge-discharge efficiency of 50 %. The introduction of molecular semiconductors creates trap states and inhibits carrier mobility in the polymer composites, thereby effectively enhancing the breakdown strength. The molecular semiconductor PCBM, with its higher electron affinity and larger bandgap, is more favorable for optimizing the energy storage performance of the polymer composite materials.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"314 ","pages":"Article 117938"},"PeriodicalIF":4.6,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144779520","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