Synthetic MetalsPub Date : 2024-12-12DOI: 10.1016/j.synthmet.2024.117819
Haifen Liu , Jinping Lin , Zijian Zhang , Shaopeng Yang , Lixin Wang
{"title":"Halogen-free polymer donors with regulated solution aggregation and blend morphology for efficient organic solar cells","authors":"Haifen Liu , Jinping Lin , Zijian Zhang , Shaopeng Yang , Lixin Wang","doi":"10.1016/j.synthmet.2024.117819","DOIUrl":"10.1016/j.synthmet.2024.117819","url":null,"abstract":"<div><div>A reasonable matching between the donor and acceptor units that constitute a donor-acceptor polymer will effectively change the intermolecular aggregation property and its blended film morphology. Thus, based on a promising donor unit, elucidating the influence of different acceptor units on the polymer solution aggregation and photovoltaic properties is important to guide more designs of semiconductor molecules. Herein, three polymers, abbreviated as PBS-BDD, PBS-DIT and PBS-FTACz, were synthesized by alternating a donor motif of benzothiophene-substituted benzodithiophene (PBS) with acceptor skeletons of benzodithiophene-4,8-dione (BDD), triazolo[4,5-<em>f</em>]isoindole-5,7-dione (DIT), and fluorinated benzotriazole (FTAZ), respectively. Investigations indicated that the polymer of PBS-BDD exhibited moderate solution aggregation and more favorable film morphology to accelerate charge generation and transport. Besides, PBS-BDD showed a deeper-lying HOMO energy level and smaller optical bandgap. When the three polymers were blended with Y6 to fabricate organic solar cells, the highest power conversion efficiency (PCE) of 10.4 % was achieved for PBS-BDD. The above results disclosed the roles of BDD, DIT, and FTAZ on influencing intermolecular aggregation and energy levels, and more importantly demonstrated that excessive molecular aggregation would cause unfavorable blend morphology, even if not because of inadequate solution solubility. The insights will inspire molecular design strategies for donor polymers from a viewpoint of regulating solution aggregation property.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"311 ","pages":"Article 117819"},"PeriodicalIF":4.0,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143172394","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}
Synthetic MetalsPub Date : 2024-12-11DOI: 10.1016/j.synthmet.2024.117818
Muhammad Azhar Mumtaz , Amir Muhammad Afzal , Muhammad Hamza Waris , Muhammad Ali , Muhammad Waqas Iqbal , Areej S. Alqarni , Shams A.M. Issa , Hesham M.H. Zakaly
{"title":"Designing of BiFe2O3@NiCoS@rGO nanocomposite electrode: A versatile platform for high-performance energy storage and electrolyte SIW/AN","authors":"Muhammad Azhar Mumtaz , Amir Muhammad Afzal , Muhammad Hamza Waris , Muhammad Ali , Muhammad Waqas Iqbal , Areej S. Alqarni , Shams A.M. Issa , Hesham M.H. Zakaly","doi":"10.1016/j.synthmet.2024.117818","DOIUrl":"10.1016/j.synthmet.2024.117818","url":null,"abstract":"<div><div>A comprehensive investigation of new materials and compositional modifications has made high-performance hybrid supercapacitor electrodes. This work mainly focuses on the synthesis of nickel cobalt sulfide (NiCoS) by hydrothermal methods and then adding bismuth ferrite (BiFe<sub>2</sub>O<sub>3</sub>) and the measurement of the electrochemical properties. The \"salt in water\" (SIW) solutions, which are super-concentrated aqueous electrolytes, enable a significant reduction in water activity and increase the electrochemical stability window, is utilized. The electrochemical analysis is performed using the two and three-electrode systems. The BiFe<sub>2</sub>O<sub>3</sub>@NiCoS@rGO electrode attained a noteworthy maximum capacity (Qs) of 393.7 mAhg<sup>−1</sup> in a three-electrode assembly. The BiFe<sub>2</sub>O<sub>3</sub>@NiCoS@rGO//A.C showed a considerable Qs of 52.3 mAh/g, an improved energy density (E<sub>d</sub>) of 79.2 W h kg<sup>−1</sup>, and a high power density (P<sub>d</sub>) of 2.2 kW kg<sup>−1</sup> in two electrode systems. The device has undergone extensive testing, with up to 5000 cycles, and has demonstrated an exceptional capacity retention rate of 88.2 %. Based on these intriguing findings, the BiFe<sub>2</sub>O<sub>3</sub>@NiCoS@rGO nano-composite displays immense promise for developing electrodes in advanced hybrid supercapacitors.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"311 ","pages":"Article 117818"},"PeriodicalIF":4.0,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143172372","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}
Synthetic MetalsPub Date : 2024-12-06DOI: 10.1016/j.synthmet.2024.117816
Daniel J. Little , Valeria Mattern-Mondragon , Nathan C. Tice , Hannah Dendinger , Bangbo Yan , Pauline Norris
{"title":"Investigation of the formation and selective behavior of thienyl pyridazine electropolymers","authors":"Daniel J. Little , Valeria Mattern-Mondragon , Nathan C. Tice , Hannah Dendinger , Bangbo Yan , Pauline Norris","doi":"10.1016/j.synthmet.2024.117816","DOIUrl":"10.1016/j.synthmet.2024.117816","url":null,"abstract":"<div><div>Thin-film electrode materials that are selectively redox active as a function of potential are of interest in a number of industries – particularly as sensors or in energy applications. Here we present such a material synthesized from the electropolymerization of a thienyl pyridazine compound, 1,4-di(thiophen-2-yl)-2H-cyclopenta[<em>d</em>]pyridazine, on a platinum disk electrode from acetonitrile solution. The thienyl pyridazine electropolymer functionalized electrode loses its ability to reversibly oxidize decamethylferrocene, while retaining quasi-reversible oxidation of both ferrocene and acetylferrocene, attributed to their more positive redox potentials. In addition, the thienyl pyridazine electropolymer formed through successive cyclic voltammetric cycles is shown to be comparable to that formed by the method of prolonged applied 1.0 V bias. Electrochemical impedance spectroscopy (EIS) is used <em>in situ</em> to help infer kinetic and mechanistic information of thienyl pyridazine film formation. Finally, it is shown that electropolymerization can be sterically hindered by the presence of a perfluoropyridine group on the thienyl pyridazine monomer at the nitrogen position, showing that electropolymerization can be significantly impacted by changes to the pyridazine center of the monomer.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"311 ","pages":"Article 117816"},"PeriodicalIF":4.0,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143173541","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}
Synthetic MetalsPub Date : 2024-12-05DOI: 10.1016/j.synthmet.2024.117815
Rajasekaran A , Usha R , Abdullah N Alodhayb , Muthumareeswaran Muthuramamoorthy , Senthilnathan S , Chandrasekaran B , Tamilselvi M , Ganesh Kumar K
{"title":"Enhancing structural, morphological, optical, and photocatalytic properties of ZnSe nanostructures via PTh-rGO integration","authors":"Rajasekaran A , Usha R , Abdullah N Alodhayb , Muthumareeswaran Muthuramamoorthy , Senthilnathan S , Chandrasekaran B , Tamilselvi M , Ganesh Kumar K","doi":"10.1016/j.synthmet.2024.117815","DOIUrl":"10.1016/j.synthmet.2024.117815","url":null,"abstract":"<div><div>In the present study, graphene oxide (GO), zinc selenide (ZnSe) and polythiophene- reduced graphene oxide- zinc selenide (PTh-rGO-ZnSe) nanostructures are grown using the improved modified hummer’s method, hydrothermal and solvothermal method. The effect PTh-rGO on the physical properties of ZnSe is extensively studied. The structural analysis of the samples are studied from XRD studies. Utilizing Energy Dispersive X-ray Spectroscopy (EDX), the existence of the elements of rGO, ZnSe, and PTh-rGO-ZnSe is verified. The grown structures' morphology forms sheets, spheres, and a few rods when they are compound, according to FESEM images. The samples' optical characteristics are examined using UV-Vis spectroscopy, and their band gaps are 4 eV, 4.25 eV, and 4.5 eV for GO, ZnSe, and PTh-rGO-ZnSe, which are determined using a Tauc plot. The potential of the GO, ZnSe and PTh-rGO-ZnSe nanostructures in photocatalytic methylene blue (MB) dye degradation of sun light is investigated and found that PTh-rGO-ZnSe exhibits superior photo catalytic performance. The examined material was further subjected to Total Organic Carbon (TOC) and scavenger radical analysis in order to examine the process of degradation.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"311 ","pages":"Article 117815"},"PeriodicalIF":4.0,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143172393","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}
Synthetic MetalsPub Date : 2024-12-04DOI: 10.1016/j.synthmet.2024.117814
Jieming Dong , Junyao Li , Laidi Xu , Hongyu Zhang , Yong Kong , Guojun Zheng
{"title":"A molecularly imprinted electrochemical sensor based on Au nanoparticles-poly(o-phenylenediamine) for diethylstilbestrol detection","authors":"Jieming Dong , Junyao Li , Laidi Xu , Hongyu Zhang , Yong Kong , Guojun Zheng","doi":"10.1016/j.synthmet.2024.117814","DOIUrl":"10.1016/j.synthmet.2024.117814","url":null,"abstract":"<div><div>Au nanoparticles (AuNPs)-poly(o-phenylenediamine) (PoPD) nanocomposite was facilely prepared by a one-step method and used as the built-in redox probe for the decoration of a glassy carbon electrode (GCE). As the template molecules, diethylstilbestrol (DES) was immobilized on the AuNPs-PoPD/GCE surface by using electropolymerized <em>o</em>-phenylenediamine (oPD) as the imprinting layer, which was then eluted from the imprinting layer with the mixture of ethanol and water (v/v, 50 %). The resultant molecularly imprinted PoPD/AuNPs-PoPD/GCE (MI-PoPD/AuNPs-PoPD/GCE) was used for the electrochemical detection of DES in a wide range from 0.1 to 10 μM, and the limit of detection (LOD) was 0.062 μM (S/N = 3). The parameters for DES detection were also optimized in this work. The molecularly imprinted DES sensor showed high stability, selectivity and reproducibility, and it was successfully used for the detection of DES in the milk samples.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"311 ","pages":"Article 117814"},"PeriodicalIF":4.0,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143173799","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}
Synthetic MetalsPub Date : 2024-12-03DOI: 10.1016/j.synthmet.2024.117811
O. Elouardi , J. Chenouf , S. Elhadfi , Y. Kensi , S.A.A. Abdelkader , B. Fakrach , A.H. Rahmani , H. Chadli , A. Rahmani
{"title":"Energetics and Raman spectroscopy of organic molecules encapsulated in single-walled boron nitride nanotubes: The example of π-conjugated oligothiophenes","authors":"O. Elouardi , J. Chenouf , S. Elhadfi , Y. Kensi , S.A.A. Abdelkader , B. Fakrach , A.H. Rahmani , H. Chadli , A. Rahmani","doi":"10.1016/j.synthmet.2024.117811","DOIUrl":"10.1016/j.synthmet.2024.117811","url":null,"abstract":"<div><div>The instability of organic electronic devices under environmental conditions narrowly related to the unstable aggregate state of organic semiconductors is one key obstacle to practical application. Herein, we highlight a promising strategy to overcome these drawbacks consisting to make use of the hollow space within single-walled boron nitride nanotubes (SWBNNTs). As a prototypical system of organic <em>π</em>-conjugated molecules encapsulated in SWBNNTs, we investigate the energetic stability and Raman spectra of a series of oligothiophene molecules (nT) (n = 2, 4, and 6) inside SWBNNTs through a combination of molecular dynamics (MD), density functional theory (DFT), bond polarisability model (BPM), and spectral moments method (SMM). The structural stability of these nanohybrids are explored initially. The optimal SWBNNTs diameters in which the resulting nanohybrids are stable with either one molecule (nT@SWBNNTs) and two encapsulated molecular chains (nT-nT@SWBNNTs) are computed. Then, the computed Raman spectra of the oligothiophenes and SWBNNTs before and after filling are reported. The energetic stability and the possible appearance or not of charge transfer in such nanohybrids are investigated by attentive analysis of the nanoconfinement effect on Raman features of oligothiophenes and SWBNNTs. The present results provide benchmark theoretical data to efficiently probe the interactions subsisting in such nanohybrids based on SWBNNTs templates that can serve as a new stable component for organic electronic devices.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"311 ","pages":"Article 117811"},"PeriodicalIF":4.0,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143172396","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}
{"title":"Ultra-small CoxSy nanoparticles adhered to 3D-reduced graphene oxide as attractive anodes for lithium-ion batteries","authors":"Baoyan Xing , Shang Jiang , Shuo Yu , Bingrong Dong , Yuqing Peng , Fangzhou Zhang , Caixia Huo , Aijun Li","doi":"10.1016/j.synthmet.2024.117813","DOIUrl":"10.1016/j.synthmet.2024.117813","url":null,"abstract":"<div><div>A novel composite anode material, Co<sub>x</sub>S<sub>y</sub>/G, has been developed through a novel hydrothermal synthesis method complemented by an innovative high-temperature vulcanization technique. This process facilitates the deposition of CoxSy nanoparticles, each less than 10 nm in size, onto a substrate of 3D rGO. This composite material combines the robust lithium storage capacity of CoxSy nanoparticles with the exceptional electrical conductivity and mechanical resilience of the 3D rGO framework, resulting in a significantly enhanced specific surface area and optimized mesoporous structure for CoxSy/G. Furthermore, it exhibits excellent electrochemical performance in lithium-ion batteries. Specifically, the CoxSy/G composites achieve a discharge capacity of 748.5 mA h g⁻¹ at 50 mA g⁻¹ , notably exceeding the 647 mA h g⁻¹ capacity demonstrated by pure CoxSy. Furthermore, these composites maintain an extraordinary cycle retention rate of 112.4 % after undergoing 500 charge-discharge cycles at a continuous rate of 0.5 A g⁻¹ . The reduced charge transfer resistance noted after cycling underscores the material’s enhanced performance attributes. This innovative creation of CoxSy/G composites offers critical insights and potential strategies for further development in the field of lithium-ion cobalt-sulfur electrodes.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"311 ","pages":"Article 117813"},"PeriodicalIF":4.0,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143172392","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}
Synthetic MetalsPub Date : 2024-12-03DOI: 10.1016/j.synthmet.2024.117812
Si Zhang , Chuanbo Hu , Xianling Hei , Xin Zhang , Bo Lan , Huawei Yin , Chengli Tang , Jie Zhao , Tingzhen Li
{"title":"Evaluation of the antimicrobial corrosion properties of electropolymerized poly(aniline-co-o-toluidine) films on carbon steel surfaces","authors":"Si Zhang , Chuanbo Hu , Xianling Hei , Xin Zhang , Bo Lan , Huawei Yin , Chengli Tang , Jie Zhao , Tingzhen Li","doi":"10.1016/j.synthmet.2024.117812","DOIUrl":"10.1016/j.synthmet.2024.117812","url":null,"abstract":"<div><div>Microbiologically influenced corrosion (MIC) can lead to structural weakening and shortened service life of carbon steel, resulting in serious economic losses and safety hazards. In particular, sulfate-reducing bacteria (SRB) produce hydrogen sulfide and sulfide during their growth and metabolism, which accelerates the corrosion of carbon steel. Thin films of poly(aniline-co-<em>o</em>-toluidine) (PA-co-POT) were electrodeposited on the surface of carbon steel using cyclic voltammetry in an electrolyte consisting of oxalic acid, aniline and o-toluidine monomers. The mechanical properties of the polymer films were analyzed by a micro-Vickers hardness tester. The corrosion resistance of the polymer films was evaluated by an electrochemical corrosion test and immersion test of the polymer films in a solution containing SRB and 3.5 % NaCl. The results showed that PA-co-POT films have superior SRB corrosion resistance than single polymer films. The corrosion rate of PA-co-POT film was 0.0171 mm/year, and the protection efficiency was 83 % after 14 days of immersion in solution. In addition, due to the antibacterial properties of the PA-co-POT film, the adhesion of bacteria on its surface is significantly reduced, and local corrosion is also effectively inhibited. This study demonstrates the potential of electropolymerized aniline derivative copolymer films in preventing MIC of carbon steel and provides valuable insights for the development of new corrosion protection materials.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"311 ","pages":"Article 117812"},"PeriodicalIF":4.0,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143173801","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}
Synthetic MetalsPub Date : 2024-12-02DOI: 10.1016/j.synthmet.2024.117799
Yasmin Wadzer, Ye Zar Ni Htwe, Hussin Mamat
{"title":"Stability and tribological performance of dispersed graphene (Gr) and aluminium nitride (AlN) nanoparticles in mineral oil","authors":"Yasmin Wadzer, Ye Zar Ni Htwe, Hussin Mamat","doi":"10.1016/j.synthmet.2024.117799","DOIUrl":"10.1016/j.synthmet.2024.117799","url":null,"abstract":"<div><div>Nanolubricants can give a solution to a variety of concerns with traditional lubricants. A good nanolubricant is expected to be stable without sedimentation for an extended period in order to provide good heat transfer and not degrade performance owing to nanolubricant instability. In this study, the stability of mono nanolubricants consists of graphene (Gr) and aluminium nitrite (AlN) in SUNISO 3GS compressor oil and PETRONAS SYNTIUM 500 15W-40 engine oil, in 0.05, 0.075 and 0.1 vol% concentration, without and with surfactant is investigated. The surfactants used in this study are CTAB and SPAN 80 for Gr and AlN, respectively. This study also investigates the difference of base fluid and how it affects the performance of the nanolubricants. Not only that, previous studies investigated the same type of nanoparticles however in this study, Gr and AlN are two different class of nanoparticles which are carbon and ceramic based nanoparticles, respectively. The stability of nanolubricants is investigated using visual observation method, thermal conductivity (TC) measurement and UV–vis spectrophotometer. Furthermore, rheological properties (viscosity, viscosity index and flash point) and tribological properties of nanolubricants are studied. The highest percentage difference for TC is 22.58 in comparison with pure compressor oil. Lastly, by using pin-on disc tribotester, it can be observed surfactant in nanolubricants reducing the specific wear rate (SWR) and the highest percentage difference is high as 76.37 % for nanolubricant. The final observation shows that GR (0.05)-CO(CT) and GR (0.05)-EO(CT) have the best performance among all nanolubricants.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"311 ","pages":"Article 117799"},"PeriodicalIF":4.0,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143172391","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}
Synthetic MetalsPub Date : 2024-12-02DOI: 10.1016/j.synthmet.2024.117810
Jisoo Kim , Sehyeon Kim , Min-Jae Kim , Boseok Kang , Hoichang Yang
{"title":"Correlating the structural evolution and charge transport in lightly doped semiconducting polymers of controlled regioregularity","authors":"Jisoo Kim , Sehyeon Kim , Min-Jae Kim , Boseok Kang , Hoichang Yang","doi":"10.1016/j.synthmet.2024.117810","DOIUrl":"10.1016/j.synthmet.2024.117810","url":null,"abstract":"<div><div>As an element of organic thin-film transistors, lightly doped conjugated polymers without high off-state electrical conductivities have received considerable attention. In this study, the impact of dopant loading in a benchmark semiconducting polymer, poly(3-hexyl thiophene) (P3HT), with controlled regioregularity was systemically investigated in view of structural evolution and change in optoelectronic properties, especially in relation to transistor performance. P3HTs doped with the p-type molecular dopant 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F<sub>4</sub>TCNQ) exhibited distinct nanostructures as the molar dopant ratio (MDR, [F<sub>4</sub>TCNQ]/[hexylthiophene]) increased. The nucleation and crystal growth of 97 % regioregular P3HT were greatly enhanced by blending with F<sub>4</sub>TCNQ at low-level MDRs (≤ 0.015). At MDR = 0.015, the doped P3HT film exhibiting highly ordered conjugated nanodomains yielded a superior field-effect mobility of up to 0.10 cm<sup>2</sup> V<sup>−1</sup> s<sup>−1</sup>, considerably higher than the undoped P3HT (∼10<sup>−3</sup> cm<sup>2</sup> V<sup>−1</sup> s<sup>−1</sup>). At relatively higher doping levels (MDR ≥ 0.05), the doped P3HT films showed large size aggregates with less long range order and resulted in poor transistor performances, while their electrical conductivities gradually increased as the MDR increased. Similarly, a regiorandom P3HT with 55 % regioregularity showed aggregated nanostructures as F<sub>4</sub>TCNQ was loaded, but their electrical properties were far inferior to regioregular P3HTs in the overall MDR ranges (0.005 – 0.5). Also, a diketopyrrolopyrrole-based p-type donor-acceptor copolymer was found to exhibit the <em>µ</em><sub>FET</sub> improvement upon light doping, like the <em>µ</em><sub>FET</sub> trends in rr-P3HT and rra-P3HT. These findings would provide valuable insights into the development of various electronic applications with doped conjugated polymers.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"311 ","pages":"Article 117810"},"PeriodicalIF":4.0,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143173802","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}