Journal of Materials Chemistry C最新文献

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Neuromorphic computational artificial synapses based on a BTO/STO memristor under Au ion implantation 离子注入下基于BTO/STO记忆电阻器的神经形态计算人工突触
IF 5.1 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2025-09-02 DOI: 10.1039/D5TC02379C
Pengshun Shan, Minghui Xu, Jie Su, Ruowei Wang, Yuyi Li, Hao Wu, Yong Liu, Weijin Kong, Jinhua Zhao and Tao Liu
{"title":"Neuromorphic computational artificial synapses based on a BTO/STO memristor under Au ion implantation","authors":"Pengshun Shan, Minghui Xu, Jie Su, Ruowei Wang, Yuyi Li, Hao Wu, Yong Liu, Weijin Kong, Jinhua Zhao and Tao Liu","doi":"10.1039/D5TC02379C","DOIUrl":"https://doi.org/10.1039/D5TC02379C","url":null,"abstract":"<p >The successful fabrication of artificial synapses is essential for developing highly integrated neuromorphic devices. Notably, defects in the memristor's functional oxide film crucially determine the stability of artificial synapses and the underlying components of neuromorphic computation. In this study, a memristor composed of BaTiO<small><sub>3</sub></small> (BTO) and SrTiO<small><sub>3</sub></small> (STO) films with Au ion implantation exhibited improved stability in the <em>I</em>–<em>V</em> cycle as well as enhanced multilevel storage performance. Here, the ON/OFF ratio of the device was increased from 600 to 10<small><sup>4</sup></small> after ion implantation. Moreover, the 10<small><sup>12</sup></small> cm<small><sup>−2</sup></small> device successfully realizes basic biological synaptic functions, including long-term potentiation/depression (LTP/LTD), paired-pulse facilitation (PPF) and spiking time-dependent plasticity (STDP). The experimental findings yield a novel investigative concept for subsequent evolution of artificial synaptic devices.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 40","pages":" 20511-20518"},"PeriodicalIF":5.1,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145315582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Moderate-temperature solution-processed synthesis of incommensurate Sr8/7TiS3 thin films and rod-shaped nanocrystals 中温固溶法合成非相称Sr8/7TiS3薄膜及棒状纳米晶
IF 5.1 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2025-09-02 DOI: 10.1039/D5TC02508G
Kiruba Catherine Vincent, Shubhanshu Agarwal, Sofia Rodriguez Perilla, Daniel C Hayes, Kim Kisslinger and Rakesh Agrawal
{"title":"Moderate-temperature solution-processed synthesis of incommensurate Sr8/7TiS3 thin films and rod-shaped nanocrystals","authors":"Kiruba Catherine Vincent, Shubhanshu Agarwal, Sofia Rodriguez Perilla, Daniel C Hayes, Kim Kisslinger and Rakesh Agrawal","doi":"10.1039/D5TC02508G","DOIUrl":"https://doi.org/10.1039/D5TC02508G","url":null,"abstract":"<p >The chalcogenide perovskite family has been steadily gaining increasing attention from the research community due to its optoelectronic properties and potential for diverse applications. While BaZrS<small><sub>3</sub></small> and BaTiS<small><sub>3</sub></small> have been the most extensively studied, other promising compounds in this family, such as Sr<small><sub><em>x</em></sub></small>TiS<small><sub>3</sub></small> (1.05 &lt; <em>x</em> &lt; 1.22), are now being explored for various optical, optoelectronic, and energy storage applications. However, challenges remain in achieving the low-temperature synthesis of Sr<small><sub><em>x</em></sub></small>TiS<small><sub>3</sub></small>. In this study, we report, for the first time, the synthesis of Sr<small><sub><em>x</em></sub></small>TiS<small><sub>3</sub></small> nanocrystals at temperatures below 400 °C. The synthesized nanocrystals exhibit a rod-like morphology. Additionally, we have developed solution-processing routes to synthesize phase-pure Sr<small><sub><em>x</em></sub></small>TiS<small><sub>3</sub></small> thin films, marking the first reported instance of such films, at temperatures below 600 °C. We also demonstrate the solid-state synthesis of Sr<small><sub><em>x</em></sub></small>TiS<small><sub>3</sub></small> powder below 600 °C. Our work paves the way for new and exciting application avenues for Sr<small><sub><em>x</em></sub></small>TiS<small><sub>3</sub></small>.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 38","pages":" 19699-19711"},"PeriodicalIF":5.1,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/tc/d5tc02508g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A multifunctional manganese coordination polymer with polar solvent-responsive tunable dielectric properties and selective catalysis 一种具有极性溶剂响应可调介电性能和选择性催化的多功能锰配位聚合物
IF 5.1 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2025-09-02 DOI: 10.1039/D5TC02227D
Balendra, Rahul Kalita, Mahboob Ali, Sanyukta, Sevi Murugavel and Kuntal Manna
{"title":"A multifunctional manganese coordination polymer with polar solvent-responsive tunable dielectric properties and selective catalysis","authors":"Balendra, Rahul Kalita, Mahboob Ali, Sanyukta, Sevi Murugavel and Kuntal Manna","doi":"10.1039/D5TC02227D","DOIUrl":"https://doi.org/10.1039/D5TC02227D","url":null,"abstract":"<p >A dielectric-tunable coordination polymer, [Mn<small><sub>2</sub></small>(SBA)<small><sub>2</sub></small>(Phen)(DMF)]·2DMF (Mn-CP1), has been synthesized <em>via</em> solvothermal method using manganese salt, 4,4′-sulfonyldibenzoic acid (H<small><sub>2</sub></small>SBA), 1,10-phenanthroline (Phen), and DMF–MeOH solvent system. Single-crystal X-ray diffraction of Mn-CP1 revealed a well-defined 2D square-channel framework constructed from rare tetranuclear {Mn<small><sub>4</sub></small>N<small><sub>4</sub></small>O<small><sub>18</sub></small>} secondary building units within the triclinic <em>P</em><img> space group. Mn-CP1 exhibited a high dielectric constant at room temperature (<em>κ</em> ≈ 12.2 at 1 kHz), attributed to the combined effects of its polar metal-carboxylate framework and the orientational polarization of coordinated and lattice DMF molecules. Upon thermal desolvation of Mn-CP1, the dielectric constant sharply decreases to <em>κ</em> ≈ 4.4, demonstrating polar solvent-responsive dielectric tunability. Impedance spectroscopy (<em>Z</em>′ and <em>Z</em>′′) further confirmed that observed changes in dielectric properties arise from intrinsic bulk properties and framework host interactions. In addition to dielectric behaviour, Mn-CP1 also displayed excellent catalytic performance for the selective oxidation of methylarenes to arylaldehydes under mild conditions, achieving 83% conversion and 88% selectivity for toluene using H<small><sub>2</sub></small>O<small><sub>2</sub></small> as a green oxidant. These results highlight Mn-CP1 as a multifunctional material that combines solvent-tunable dielectric behavior with catalytic efficiency, offering strong potential for applications in electronic devices and sustainable catalysis.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 41","pages":" 21122-21131"},"PeriodicalIF":5.1,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145341097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Ultra-broadband toroidal metastructure absorber based on VO2 with enhanced anapole response 基于增强拟极点响应的VO2超宽带环形元结构吸收体
IF 5.1 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2025-09-02 DOI: 10.1039/D5TC02987B
Jun-Jie Luo, Yu-Hang Sun, Qi Chen and Hai-Feng Zhang
{"title":"Ultra-broadband toroidal metastructure absorber based on VO2 with enhanced anapole response","authors":"Jun-Jie Luo, Yu-Hang Sun, Qi Chen and Hai-Feng Zhang","doi":"10.1039/D5TC02987B","DOIUrl":"https://doi.org/10.1039/D5TC02987B","url":null,"abstract":"<p >In recent years, metastructure absorbers have been developed rapidly. Broadband absorbers, serving as critical components in electromagnetic stealth applications and foundational elements for designing various functional absorbers, represent an important development in metastructure absorber research. Based on the significant near field enhancement effect of anapole modes, this study investigates the effectiveness in broadening absorption bandwidth and simplifying absorber structures of anapole mode. A waveguide-like ultra-wideband metastructure absorber (WUMA), based on toroidal metastructure design principles, is proposed. The results demonstrate that the designed WUMA achieves absorption rates exceeding 90% across 0.334 THz to 33.4 THz, with remarkable performance metrics including 196% fractional bandwidth and a linear octave ratio (the ratio of upper cutoff frequency to lower one) of 100. Simultaneously, it maintains over 10 dB radar cross section reduction throughout nearly its entire operational bandwidth. This design of WUMA establishes a novel paradigm for ultra-broadband absorbers, exhibiting significant potential for applications in electromagnetic stealth, electromagnetic compatibility, and advanced radar systems.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 41","pages":" 20941-20955"},"PeriodicalIF":5.1,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145341093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 impact of axisymmetric and centrosymmetric molecular architectures in non-fused ring electron acceptors on photovoltaic performance 非熔合环电子受体中轴对称和中心对称分子结构对光伏性能的影响
IF 5.1 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2025-09-02 DOI: 10.1039/D5TC02718G
Chenxu Yu, Kun Li, Yanqi Shi, Yuan Yao, Qian Xie, Jiayu Li, Jiang-Yang Shao, Yishi Wu, Qing Liao, Cunbin An and Hongbing Fu
{"title":"The impact of axisymmetric and centrosymmetric molecular architectures in non-fused ring electron acceptors on photovoltaic performance","authors":"Chenxu Yu, Kun Li, Yanqi Shi, Yuan Yao, Qian Xie, Jiayu Li, Jiang-Yang Shao, Yishi Wu, Qing Liao, Cunbin An and Hongbing Fu","doi":"10.1039/D5TC02718G","DOIUrl":"https://doi.org/10.1039/D5TC02718G","url":null,"abstract":"<p >The geometric configuration of electron acceptors significantly governs molecular dipole moments and stacking behavior, thereby critically influencing power conversion efficiencies (PCEs) in organic solar cells (OSCs). In this study, we designed and synthesized two non-fused ring electron acceptors (NFREAs), TTCIC (axisymmetric) and TCIC (centrosymmetric), by incorporating 3,6-bis(octan-3-yloxy)thieno[3,2-<em>b</em>]thiophene and 3,4-bis(octan-3-yloxy)thiophene units, respectively. Compared to TTCIC, TCIC exhibits a higher LUMO (−3.89 eV <em>vs.</em> −3.98 eV), a lower HOMO (−5.40 eV <em>vs.</em> −5.35 eV), a large dipole moment change (0.217 D <em>vs.</em> 0 D) between the ground state and excited state dipoles, and weaker intermolecular interactions. Interestingly, both acceptors showed an edge-on molecular orientation in the films; however, after blending with a polymer donor, PBDB-T, TTCIC blend films exhibited preferential edge-on molecular alignment, whereas TCIC blend films adopted a face-on orientation. This morphological contrast induced stronger charge carrier recombination in PBDB-T:TTCIC blends. Consequently, PBDB-T:TTCIC-based OSCs achieved an exceptionally low PCE of 0.60%, while PBDB-T:TCIC devices delivered a moderate PCE of 8.66%. These results demonstrate that fine-tuning of NFREA geometric configurations is essential for optimizing the molecular stacking orientation and enhancing the OSC performance.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 41","pages":" 21066-21074"},"PeriodicalIF":5.1,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145339745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Theoretical research on an ultra-wideband Janus metastructure for bidirectional electromagnetic wave absorbing 双向电磁波吸收超宽带Janus元结构的理论研究
IF 5.1 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2025-09-01 DOI: 10.1039/D5TC02592C
Xuan-Zhi Shi, Si-Yuan Liao and Hai-Feng Zhang
{"title":"Theoretical research on an ultra-wideband Janus metastructure for bidirectional electromagnetic wave absorbing","authors":"Xuan-Zhi Shi, Si-Yuan Liao and Hai-Feng Zhang","doi":"10.1039/D5TC02592C","DOIUrl":"https://doi.org/10.1039/D5TC02592C","url":null,"abstract":"<p >In this article, a bidirectional ultra-wideband wave-absorbing metastructure (WAMS) with Janus properties is proposed. The symmetrical propagation of EM waves is broken by the asymmetric arrangement of cross-shaped split ring resonators of different sizes. The results unequivocally demonstrate that when the EM wave is incident in the +<em>z</em>-direction, the WAMS exhibits more than 90% absorption in the ranges of 0.86–1.21 THz and 1.58–1.76 THz. The relative bandwidths (RB) are 33.8% and 10%, respectively. When the EM wave is incident in the −<em>z</em>-direction, the absorption band is 1.33–1.76 THz, and the RB reaches 27.8%. An equivalent circuit model is utilized to elucidate the underlying physical mechanism of this WAMS based on a study of the equivalent circuit model of conventional split ring resonators. Due to the WAMS's high symmetry in the <em>x</em>–<em>y</em> plane, it is insensitive to the polarization state of the EM waves. Additionally, the WAMS has remarkable angular stability across a spectrum of incidence angles from 0 to 55° when directed in the +<em>z</em>-direction, and from 0 to 45° when directed in the −<em>z</em>-direction. The given WAMS provides a new idea for the design of bidirectional ultra-wideband Janus absorbers, and has a broad application prospect across various fields such as radar asymmetric stealth, multiplexed systems, beam splitters, and full-space EM wave control.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 41","pages":" 20956-20972"},"PeriodicalIF":5.1,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145341094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 conductivity poly(ionic liquid)-based crosslinked dielectrics 高导电性聚(离子液体)基交联介质
IF 5.1 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2025-09-01 DOI: 10.1039/D5TC02087E
Sophia McKillop, Laura E. Dickson, Hyungjun Cho, May Ourabi, Joseph G. Manion, Vittoria-Ann DiPalo and Benoît H. Lessard
{"title":"High conductivity poly(ionic liquid)-based crosslinked dielectrics","authors":"Sophia McKillop, Laura E. Dickson, Hyungjun Cho, May Ourabi, Joseph G. Manion, Vittoria-Ann DiPalo and Benoît H. Lessard","doi":"10.1039/D5TC02087E","DOIUrl":"https://doi.org/10.1039/D5TC02087E","url":null,"abstract":"<p >A wide range of emerging applications, from organic electronics to batteries, require dielectrics that offer high ionic conductivity while preventing hazards associated with dielectric leakage. Poly(ionic liquids) (PILs) are a promising class of materials which combine the high ionic conductivity of ionic liquids with the desireable mechanical properties of polymers. When developing thin film devices the deposition of multiple layers may necessitate orthoganol processing, limiting the choice of processing solvents and device designs. We developed a PIL that can be crosslinked with bis(2-bromoethyl) ether (BBEE) for use as a high performing dielectric. Electrochemical impedance spectroscopy was used to establish structure–property relationships. We investigated the effect of poly(ethylene glycol) methacrylate ion conducting monomers (mPEGMA) and 2-(dimethylamino)ethyl methacrylate (DMAEMA) composition in the PIL, the alkylation percentage in the PIL, and amount of BBEE to PIL on corresponding metal–insulator–metal capacitor performance. A balance between polymer composition and BBEE composition was identified to produce a robust PIL dielectric with a high electrical double layer (EDL) onset frequency and high capacitance density that is a solid at room temperature. The optimized PIL dielectric was then successfully integrated into a proof-of-concept solution-processed organic thin-film transistor (OTFT).</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 39","pages":" 20085-20093"},"PeriodicalIF":5.1,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/tc/d5tc02087e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145248113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modular construction of medium-to-long wavelength multi-resonant fluorescent emitters 中长波多共振荧光发射器的模块化结构
IF 5.1 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2025-09-01 DOI: 10.1039/D5TC02297E
Yi Wei, Jia-Qi Liang, Li Yuan, Jia-Jun Hu, Shuai Xing, Zhong-Zhong Huo, Wen-Wei Zhang and You-Xuan Zheng
{"title":"Modular construction of medium-to-long wavelength multi-resonant fluorescent emitters","authors":"Yi Wei, Jia-Qi Liang, Li Yuan, Jia-Jun Hu, Shuai Xing, Zhong-Zhong Huo, Wen-Wei Zhang and You-Xuan Zheng","doi":"10.1039/D5TC02297E","DOIUrl":"https://doi.org/10.1039/D5TC02297E","url":null,"abstract":"<p >Efficient multiple resonance (MR) materials play a crucial role in display applications due to their extremely narrow bandwidth emission and high photoluminescence efficiency (<em>Φ</em><small><sub>PL</sub></small>). However, achieving a wide range of color tuning without compromising color purity remains a persistent challenge for MR emitters. This study introduces naphthalene, pyrene, anthracene, and perylene units through a simple modular approach to extend π-conjugation and facilitate wavelength shifts. Four MR fluorescent BNBCZ, BPBCZ, BFBCZ, and BPLBCZ emitters exhibit tunable narrowband emission characteristics from green to red in toluene, with spectra maxima at 509, 532, 559, and 605 nm, with full-width at half maximum values of 26, 29, 32, and 31 nm, respectively. Furthermore, all materials show high <em>Φ</em><small><sub>PL</sub></small>s of up to 95%. Notably, with the assistance of a thermally activated delayed fluorescence molecule, the sensitized organic light-emitting diodes based on these materials demonstrate good performances, achieving maximum external quantum efficiencies of 19.5%, 21.4%, 21%, and 23%, respectively, with low efficiency roll-off. The corresponding CIE coordinates of (0.24, 0.68) and (0.65, 0.35) closely align with the International Telecommunication Union's requirements for green and red electroluminescence.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 41","pages":" 21034-21039"},"PeriodicalIF":5.1,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145339742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Engineering morphological features and surface steps in ultrathick penta-twinned copper nanowires 超厚五孪铜纳米线的工程形态学特征及表面步骤
IF 5.1 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2025-09-01 DOI: 10.1039/D5TC01835H
Andrea Conte, Sabrina Antonello, Marco Baron, Sara Bonacchi and Alessandro Aliprandi
{"title":"Engineering morphological features and surface steps in ultrathick penta-twinned copper nanowires","authors":"Andrea Conte, Sabrina Antonello, Marco Baron, Sara Bonacchi and Alessandro Aliprandi","doi":"10.1039/D5TC01835H","DOIUrl":"https://doi.org/10.1039/D5TC01835H","url":null,"abstract":"<p >Controlling and foreseeing copper nanostructure properties remains an open challenge in the field of nanoscience. Here, we elucidate the role of glycine as a templating agent to synthesize ultrathick copper nanowires (CuNWs) with a precise control over their morphology and crystal structure. Comprehensive characterization was carried out using orthogonal technique analyses, such as SEM, HR-TEM, AFM, XRD, and electrochemistry, which enable us to gain a complete insight into both the bulk and the surface properties of the CuNWs. In particular, the synthesized CuNWs exhibited a wide range of diameters, from 65 nm to more than 400 nm, and well-defined exposed surfaces composed of the (100) and (110) crystal facets. This precise control over the physicochemical properties of CuNWs could potentially impact different fields of nanotechnologies, ranging from renewable energy to high-speed electronics.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 41","pages":" 21170-21178"},"PeriodicalIF":5.1,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/tc/d5tc01835h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145341115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Revealing frontier energy levels in blended mixed-halide perovskite thin films with electrochemistry 用电化学方法揭示混合卤化物钙钛矿薄膜的前沿能级
IF 5.1 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2025-09-01 DOI: 10.1039/D5TC02109J
Muhammad Khalid, Austen C. Adams, Rohit Kajla, Akbar Ali, Md Musfiqur Rahman, Anton V. Malko and Jason D. Slinker
{"title":"Revealing frontier energy levels in blended mixed-halide perovskite thin films with electrochemistry","authors":"Muhammad Khalid, Austen C. Adams, Rohit Kajla, Akbar Ali, Md Musfiqur Rahman, Anton V. Malko and Jason D. Slinker","doi":"10.1039/D5TC02109J","DOIUrl":"https://doi.org/10.1039/D5TC02109J","url":null,"abstract":"<p >Devices made from thin films of halide perovskites are advancing due to their potential in photovoltaic and optoelectronic applications, largely attributed to their energy level tunability, which can be achieved by modifying the chemical or morphological composition. Measuring the frontier energy levels of functional perovskite thin films—the valence and conduction bands—is essential for designing and tuning the electrical and optical properties of perovskite devices. However, as these thin films dissolve in organic and aqueous solutions, measuring the frontier energy levels of as-cast films typically requires sophisticated vacuum instrumentation and high-intensity excitation. Here, we measure a series of mixed-halide perovskite frontier energy levels in blended thin films with electrochemistry, utilizing a hydrofluoroether electrolyte (HFE) that preserves the perovskite structure. We prepare thin films of CsPbBr<small><sub><em>x</em></sub></small>Cl<small><sub><em>y</em></sub></small>I<small><sub><em>z</em></sub></small> perovskites in red, yellow, green, and blue colors, together with a polyelectrolyte and a salt additive, and quantify their frontier energy levels in a HFE electrolyte using square wave voltammetry (SWV) for enhanced sensitivity to electronic and faradaic processes. Scanning electron microscopy reveals that these perovskite thin films retain their underlying microstructure after exposure to the electrolyte and subsequent electrochemical measurements. This approach enables the repeatable and quantitative determination of various perovskite energy levels while preserving the structure of perovskite solid-state films with a cost-effective, low-power benchtop technique.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 39","pages":" 20182-20188"},"PeriodicalIF":5.1,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145248119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
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