Journal of Materials Chemistry C最新文献

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Correction: New frontiers in ceramic composites: tunable electromagnetic interference shielding by realizing negative permittivity in SnO2/LaNiO3 nanocomposites 修正:陶瓷复合材料的新领域:通过实现SnO2/LaNiO3纳米复合材料的负介电常数可调谐电磁干扰屏蔽
IF 5.7 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2025-06-13 DOI: 10.1039/D5TC90093J
Tarun Katheriya, Shukdev Pandey and Shail Upadhyay
{"title":"Correction: New frontiers in ceramic composites: tunable electromagnetic interference shielding by realizing negative permittivity in SnO2/LaNiO3 nanocomposites","authors":"Tarun Katheriya, Shukdev Pandey and Shail Upadhyay","doi":"10.1039/D5TC90093J","DOIUrl":"https://doi.org/10.1039/D5TC90093J","url":null,"abstract":"<p >Correction for ‘New frontiers in ceramic composites: tunable electromagnetic interference shielding by realizing negative permittivity in SnO<small><sub>2</sub></small>/LaNiO<small><sub>3</sub></small> nanocomposites’ by Tarun Katheriya <em>et al.</em>, <em>J. Mater. Chem. C</em>, 2025, https://doi.org/10.1039/d5tc01396h.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 26","pages":" 13542-13542"},"PeriodicalIF":5.7,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/tc/d5tc90093j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144550772","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
Advanced PbS quantum dot superlattices for high-performance electrical transport and infrared photodetection integrated with two-dimensional MoS2† 先进的PbS量子点超晶格与二维MoS2†集成高性能电传输和红外光探测
IF 5.7 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2025-06-13 DOI: 10.1039/D5TC00800J
Tianchan Ma, Haotian Luo, Jianming Huang, Yu Lan, Zhenjun Chen, Huanteng Luo, Jiabin Li, Sheng Hu, Zheng Liu, Wei Gao and Xiao Liu
{"title":"Advanced PbS quantum dot superlattices for high-performance electrical transport and infrared photodetection integrated with two-dimensional MoS2†","authors":"Tianchan Ma, Haotian Luo, Jianming Huang, Yu Lan, Zhenjun Chen, Huanteng Luo, Jiabin Li, Sheng Hu, Zheng Liu, Wei Gao and Xiao Liu","doi":"10.1039/D5TC00800J","DOIUrl":"https://doi.org/10.1039/D5TC00800J","url":null,"abstract":"<p >The optoelectronics field has recently experienced a notable surge in research studies focused on hybrid structures that integrate colloidal quantum dots (QDs) with two-dimensional (2D) materials. However, photodetectors based on QDs are frequently constrained by charge transport within the QD films, primarily due to the presence of high-energy states and spatial disorder within the QDs, which arise from conventional fabrication methods. To mitigate this issue, this study introduces an innovative method to overcome this limitation by successfully growing and transferring micrometer-scale mesocrystalline, oriented packed p-type triangular PbS QD superlattices (SLs) onto n-type multilayered MoS<small><sub>2</sub></small>. Compared to pristine MoS<small><sub>2</sub></small>, the PbS QD SLs/MoS<small><sub>2</sub></small> photodetector exhibits an enhanced current on–off ratio of 1.6 × 10<small><sup>7</sup></small> and electron mobility of 10.5 cm<small><sup>2</sup></small> V<small><sup>−1</sup></small> s<small><sup>−1</sup></small>, attributed to type-I band alignment with efficient electron injection into the MoS<small><sub>2</sub></small> channel by depleting the remaining holes. The miniband characteristics within PbS QD SLs endowed effective coupling within the mesocrystals, leading to an effective charge transfer process and prolonging the carrier lifetime, culminating in remarkable photogating performance in shortwave infrared (SWIR) (808–1550 nm) photodetection for the MoS<small><sub>2</sub></small> channel, a boosted high responsivity of up to 738 A W<small><sup>−1</sup></small>, a high specific detectivity of 5.08 × 10<small><sup>10</sup></small> Jones, and a gain of 59 201% at a wavelength of 1550 nm with the hole accumulation at the PbS side and <em>V</em><small><sub>gs</sub></small> = 60 V. This study thoroughly examines the interfacial mechanisms between QD SLs and MoS<small><sub>2</sub></small>, demonstrating the potential applications of next-generation QD SLs/2D hybrid SWIR photodetectors.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 27","pages":" 13647-13658"},"PeriodicalIF":5.7,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598152","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
Highly efficient luminescence and color-tunable white emission from 0D Cs2InCl5·H2O perovskites via Al3+ and Sb3+ codoping† 通过Al3+和Sb3+共掺杂,0D Cs2InCl5·H2O钙钛矿的高效发光和颜色可调的白色发射
IF 5.7 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2025-06-13 DOI: 10.1039/D5TC01268F
Yijia Wen, Shuaigang Ge, Lingli Chen, Chaowei Huang, Bingbing Zheng and Bingsuo Zou
{"title":"Highly efficient luminescence and color-tunable white emission from 0D Cs2InCl5·H2O perovskites via Al3+ and Sb3+ codoping†","authors":"Yijia Wen, Shuaigang Ge, Lingli Chen, Chaowei Huang, Bingbing Zheng and Bingsuo Zou","doi":"10.1039/D5TC01268F","DOIUrl":"https://doi.org/10.1039/D5TC01268F","url":null,"abstract":"<p >All-inorganic metal halide perovskites have received extensive attention due to their excellent photoelectric properties. However, addressing toxicity and instability through reasonable doping, as well as improving photoluminescence (PL) efficiency, remains a major challenge. In this study, the introduction of Sb<small><sup>3+</sup></small> alone induces self-trapped excitons (STEs) due to lattice distortion and deformation, producing orange emission (583 nm) and significantly improving luminescence efficiency. When AlCl<small><sub><em>x</em></sub></small> clusters are further introduced, DFT calculations show that Al<small><sup>3+</sup></small> raises energy levels, limiting the energy levels of In and Sb states and producing highly stable individual states. This induces confinement effects and electron–phonon coupling, resulting in blue emission (446 nm) luminescence of STEs. Therefore, Al<small><sup>3+</sup></small> and Sb<small><sup>3+</sup></small> co-doped Cs<small><sub>2</sub></small>InCl<small><sub>5</sub></small>·H<small><sub>2</sub></small>O samples display bright, wideband bimodal emission that covers the entire visible region, with the photoluminescence quantum yield (PLQY) reaching 79.42%. Energy transfer occurs between In–Sb energy levels and singlet–triplet (S–T) transitions. Additionally, varying Al<small><sup>3+</sup></small> concentration under co-doping conditions enables the modulation of luminescence color. High-performance warm white light emitting diodes (WLEDs) with excellent color rendering index and working stability are achieved, promoting the development of lead-free indium-based perovskites for solid-state lighting and displays.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 29","pages":" 15099-15110"},"PeriodicalIF":5.7,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144695702","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
Ultrastable fluoropolymer-based porous conductive elastomer composites (PVDF–HFP/CB) for high-sensitivity pressure sensing applications† 用于高灵敏度压力传感应用的超稳定含氟聚合物基多孔导电弹性体复合材料(PVDF-HFP /CB
IF 5.7 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2025-06-13 DOI: 10.1039/D5TC01323B
Sanfa Xie, Yaoqi Wei, Yaping Zhang, Wei Zhu and Xiangfei Liang
{"title":"Ultrastable fluoropolymer-based porous conductive elastomer composites (PVDF–HFP/CB) for high-sensitivity pressure sensing applications†","authors":"Sanfa Xie, Yaoqi Wei, Yaping Zhang, Wei Zhu and Xiangfei Liang","doi":"10.1039/D5TC01323B","DOIUrl":"https://doi.org/10.1039/D5TC01323B","url":null,"abstract":"<p >Flexible pressure sensors necessitate a broad detection range and high sensitivity to ensure adaptability across diverse application scenarios and reliable signal acquisition. However, existing piezoresistive sensors with ultra-wide detection ranges face challenges in balancing sensing performance, structural thickness, and manufacturing costs. Herein, a flexible pressure sensor based on a polyvinylidene fluoride hexafluoropropylene (PVDF–HFP) fluoropolymer as the polymer framework was proposed. Consequently, the fabricated device achieved an extended pressure response range (0–400 kPa) with a maximum sensitivity of 1.40 kPa<small><sup>−1</sup></small>, while maintaining rapid response/recovery characteristics (11.3 ms/11.9 ms). Additionally, the device showed good dynamic response performance and maintained mechanical and electrical stability over more than 10 000 testing cycles. The sensor also maintained stable electrical and mechanical performance across a range of temperatures (0–150 °C), further confirming its high-temperature resistance. This work presents a viable pathway for enhancing the performance of flexible pressure sensors, advancing their potential for commercialization.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 28","pages":" 14422-14432"},"PeriodicalIF":5.7,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144646757","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
Sensitivity augmentation in multimodal optical thermometry based on NaBi (MoO4)2:Yb3+,Er3+@NaBi(MoO4)2:Yb3+,Ho3+ core@shell nanoparticles† 基于NaBi(MoO4)2:Yb3+, Er3+@NaBi(MoO4)2:Yb3+,Ho3+ core@shell纳米颗粒†的多模态光学测温灵敏度增强
IF 5.1 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2025-06-12 DOI: 10.1039/D5TC00404G
Satish Kumar Samal, Nishanth Dominic, Jyoti Yadav, Sahana Kulkarni, Srungarpu N. Achary and Boddu S. Naidu
{"title":"Sensitivity augmentation in multimodal optical thermometry based on NaBi (MoO4)2:Yb3+,Er3+@NaBi(MoO4)2:Yb3+,Ho3+ core@shell nanoparticles†","authors":"Satish Kumar Samal, Nishanth Dominic, Jyoti Yadav, Sahana Kulkarni, Srungarpu N. Achary and Boddu S. Naidu","doi":"10.1039/D5TC00404G","DOIUrl":"https://doi.org/10.1039/D5TC00404G","url":null,"abstract":"<p >High relative temperature sensitivity (<em>S</em><small><sub>r</sub></small>) and a broad sensing range are now necessities in real-world applications of lanthanide luminescence thermometry. A luminescent thermometer that is composed of core@shell Ln<small><sup>3+</sup></small>-doped molybdates (Ln = Yb, Er, and Ho) is suggested here. The material under consideration here, NaBi(MoO<small><sub>4</sub></small>)<small><sub>2</sub></small>:Yb<small><sup>3+</sup></small>,Er<small><sup>3+</sup></small>@NaBi(MoO<small><sub>4</sub></small>)<small><sub>2</sub></small>:Yb<small><sup>3+</sup></small>,Ho<small><sup>3+</sup></small> core@shell nanoparticles, has been synthesized <em>via</em> an ethylene glycol-mediated solvothermal procedure, and the temperature dependencies based on the varied emissions in the green and red regions have been evaluated. The successful synthesis of the core@shell has been clarified <em>via</em> particle size measurement as well as enhancement in photoluminescence intensity. The findings of the experiment show that NaBi(MoO<small><sub>4</sub></small>)<small><sub>2</sub></small>:Yb<small><sup>3+</sup></small>,Er<small><sup>3+</sup></small>@NaBi(MoO<small><sub>4</sub></small>)<small><sub>2</sub></small>:Yb<small><sup>3+</sup></small>,Ho<small><sup>3+</sup></small> core@shell nanoparticles have a relative temperature sensitivity of 4.16% K<small><sup>−1</sup></small> at 350 K and a low temperature uncertainty of &lt;0.1 K. In addition, it outperforms previously reported luminescent thermometric materials in maintaining a reasonably high <em>S</em><small><sub>r</sub></small> (no lower than 2.5% K<small><sup>−1</sup></small>) throughout a broad temperature sensing range (∼200 K). The findings of this work may, therefore, shed light on a promising avenue for future research into the construction of highly accurate luminescent thermometers capable of measuring a broad variety of temperatures.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 30","pages":" 15426-15441"},"PeriodicalIF":5.1,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144751175","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
Tailored ligand design enabling comprehensive passivation of perovskite nanocrystals for light-emitting diodes† 量身定制的配体设计使钙钛矿纳米晶体全面钝化发光二极管†
IF 5.7 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2025-06-12 DOI: 10.1039/D5TC01455G
Taisei Kimura, Kenshin Yoshida, Kohei Narazaki, Kento Yanagihashi, Shun Hirashima, Yua Oyama, Khadga S. Thakuri, Yuta Ito, Satoshi Asakura, Motofumi Kashiwagi, Matthew S. White, Takayuki Chiba and Akito Masuhara
{"title":"Tailored ligand design enabling comprehensive passivation of perovskite nanocrystals for light-emitting diodes†","authors":"Taisei Kimura, Kenshin Yoshida, Kohei Narazaki, Kento Yanagihashi, Shun Hirashima, Yua Oyama, Khadga S. Thakuri, Yuta Ito, Satoshi Asakura, Motofumi Kashiwagi, Matthew S. White, Takayuki Chiba and Akito Masuhara","doi":"10.1039/D5TC01455G","DOIUrl":"https://doi.org/10.1039/D5TC01455G","url":null,"abstract":"<p >Ever since the emergence of perovskite nanocrystals (PeNCs), their unique properties have attracted significant attention in both practical and academic fields, precisely because the ligands accentuate these characteristics. There are many examples of improving the optical properties, dispersibility, and durability of PeNCs by designing the ligands, and the usefulness of ligand engineering has been demonstrated. However, due to the emergence of highly complex issues stemming from the crystal and surface states of PeNCs, the harnessing of ligand design for LEDs—one of the major applications of PeNCs—remains limited. In this study, we focused on three aspects of the ligand's molecular structure: the head, tail, and counter anion, and by designing a structure that assigns distinct roles to each component, we comprehensively passivated the surface of PeNCs, thereby enabling their application in LEDs. The designed ligands relieved the crystal strain on the PeNCs, reduced the electrical insulation, and improved the optical properties by providing an ideal chemical surface. As a result of the synergistic effects, the EQE exhibits a 2.3-fold enhancement over the control devices, achieving a high value of 17.6%. This study not only proposes a ligand-engineering approach but also highlights this strategy as a new frontier in PeNCs research.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 28","pages":" 14202-14210"},"PeriodicalIF":5.7,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144646722","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
Constructing bimetallic conjugated coordination polymers as efficient electrocatalysts for water splitting† 构建双金属共轭配位聚合物作为水裂解高效电催化剂
IF 5.7 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2025-06-12 DOI: 10.1039/D5TC01062D
Jia Du, Xueguo Liu, Yiming Wu, Xin Wei, Zekai Wu, Jingyuan Jia, Haiyang Li, Bingke Li and Keliang Wu
{"title":"Constructing bimetallic conjugated coordination polymers as efficient electrocatalysts for water splitting†","authors":"Jia Du, Xueguo Liu, Yiming Wu, Xin Wei, Zekai Wu, Jingyuan Jia, Haiyang Li, Bingke Li and Keliang Wu","doi":"10.1039/D5TC01062D","DOIUrl":"https://doi.org/10.1039/D5TC01062D","url":null,"abstract":"<p >With the advancement of non-precious metal electrocatalysts, coordination polymers have emerged as a promising alternative to precious metal nanomaterials for hydrogen evolution reactions (HERs) and oxygen evolution reactions (OERs), due to their diverse structures and superior cost-effectiveness. However, challenges remain in precisely modifying the electronic structure at the molecular level to improve the HER and OER activities of coordination polymers. In the field of energy storage, π-d conjugated coordination polymers (CCPs) have been deeply researched due to their designability and outstanding electrical conductivity. In this study, a series of bimetallic CCPs, Co<small><sub><em>x</em></sub></small>Ni<small><sub>1−<em>x</em></sub></small>–DHBQs (<em>x</em> =0, 1/2, 1/3, 1/4, 1/5, and 1 and H<small><sub>2</sub></small>DHBQ = 2,5-dihydroxycyclohex-2,5-diene-1,4-dione), were synthesized <em>via</em> simple methods. By changing the proportions of cobalt and nickel metal centers, Co<small><sub>1/3</sub></small>Ni<small><sub>2/3</sub></small>–DHBQ exhibited an overpotential of only 270 mV and a Tafel slope of 62 mV dec<small><sup>−1</sup></small> at a current density of 10 mA cm<small><sup>−2</sup></small> during the oxygen evolution reaction (OER) test. During the hydrogen evolution reaction (HER) evaluation, the best-performing Co<small><sub>1/3</sub></small>Ni<small><sub>2/3</sub></small>–DHBQ showed an overpotential of merely 177 mV and a Tafel slope of 119 mV per decade at the identical current density. In addition, using Co<small><sub>1/3</sub></small>Ni<small><sub>2/3</sub></small>–DHBQ for both electrodes in a water electrolysis system resulted in a remarkably low cell voltage of 1.55 V at a current density of 10 mA cm<small><sup>−2</sup></small>. Notably, after 70 hours of stability testing, no significant performance degradation was observed. The prepared catalyst exhibits excellent electrocatalytic properties, which stem from the synergistic influence of cobalt and nickel metal centers embedded in the conjugated coordination polymer matrix, providing abundant accessible active sites, rapid ion/electron transport, and efficient O<small><sub>2</sub></small>/H<small><sub>2</sub></small> release channels.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 29","pages":" 14982-14990"},"PeriodicalIF":5.7,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144695687","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
Flexible piezoelectric nanogenerator based on Ti3C2Tx-coated electrospun PVDF–TrFE nanofibers† 基于ti3c2tx涂层静电纺PVDF-TrFE纳米纤维的柔性压电纳米发电机
IF 5.1 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2025-06-12 DOI: 10.1039/D5TC01005E
Arturo Barjola, Oscar Sahuquillo, Águeda Sonseca, Vicente Compañ and Enrique Giménez
{"title":"Flexible piezoelectric nanogenerator based on Ti3C2Tx-coated electrospun PVDF–TrFE nanofibers†","authors":"Arturo Barjola, Oscar Sahuquillo, Águeda Sonseca, Vicente Compañ and Enrique Giménez","doi":"10.1039/D5TC01005E","DOIUrl":"https://doi.org/10.1039/D5TC01005E","url":null,"abstract":"<p >This study presents the development of a flexible piezoelectric nanogenerator based on electrospun PVDF–TrFE nanofibers coated with Ti<small><sub>3</sub></small>C<small><sub>2</sub></small>T<small><sub><em>x</em></sub></small> MXene. The device is designed to harvest ambient mechanical energy for self-sustaining systems, addressing the limitations of conventional piezoelectric materials. We report the synthesis of Ti<small><sub>3</sub></small>C<small><sub>2</sub></small>T<small><sub><em>x</em></sub></small> MXene, a novel 2D nanomaterial known for its high electrical conductivity and abundant surface terminations, which facilitate hydrogen bonding interactions with the dipoles of PVDF–TrFE molecular chains. The Ti<small><sub>3</sub></small>C<small><sub>2</sub></small>T<small><sub><em>x</em></sub></small> MXene nanosheets were synthesized and deposited as a thin layer onto PVDF–TrFE nanofiber mats <em>via</em> a vacuum-assisted filtration method. This coating enhances the net dipole moment around the MXene surface, predominantly aligning it along the <em>z</em>-axis. The electrospinning process was optimized to produce uniform PVDF–TrFE nanofibers with a high β-phase content, which is crucial for enhanced piezoelectric performance. The MXene coating significantly improved the electrical properties of the nanofibers, resulting in a nanogenerator with an output voltage 20 times higher than that to pure PVDF–TrFE. This innovative composite demonstrates great potential for applications in self-powered wearable and portable devices.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 30","pages":" 15451-15460"},"PeriodicalIF":5.1,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144751141","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
Effect of ortho-fluorine substituted hole transport materials for perovskite solar cells: influence of rigid vs. flexible linkers† 钙钛矿太阳能电池中邻氟取代空穴传输材料的影响:刚性与柔性连接体的影响
IF 5.7 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2025-06-12 DOI: 10.1039/D5TC01565K
Telugu Bhim Raju, Chathuranganie A. M. Senevirathne, Motonori Watanabe, Yuki Fujita, Dai Senba and Toshinori Matsushima
{"title":"Effect of ortho-fluorine substituted hole transport materials for perovskite solar cells: influence of rigid vs. flexible linkers†","authors":"Telugu Bhim Raju, Chathuranganie A. M. Senevirathne, Motonori Watanabe, Yuki Fujita, Dai Senba and Toshinori Matsushima","doi":"10.1039/D5TC01565K","DOIUrl":"https://doi.org/10.1039/D5TC01565K","url":null,"abstract":"<p >The development of stable and efficient hole transporting materials (HTMs) is essential for the commercialization of perovskite solar cells (PSCs). In this study, we introduce four novel HTMs featuring a D–π–D molecular structure. These HTMs have 3-fluoro-<em>N,N</em>-bis(4-(methylthio)phenyl)aniline (TPASF) peripheral terminal groups, which are linked with various π-core moieties. Our investigation reveals that altering the π-linkers affects the film morphology of the HTMs, significantly influencing device performance. HTMs with planar backbones, CPDT-OFTPASMe2 [2-(2,6-bis(4-(bis(4-(methylthio)phenyl)amino)-2-fluorophenyl)-4<em>H</em>-cyclopenta[2,1-<em>b</em>:3,4-<em>b</em>′]dithiophen-4-ylidene)malononitrile] and TTT-OFTPASMe2 [4,4′-(dithieno[3,2-<em>b</em>:2′,3′-<em>d</em>]thiophene-2,6-diyl)bis(3-fluoro-<em>N,N</em>-bis(4-(methylthio)phenyl)aniline)], form films with more voids. In contrast, ThOEt-OFTPASMe2 [4,4′-(3,3′-diethoxy-[2,2′-bithiophene]-5,5′-diyl)bis(3-fluoro-<em>N,N</em>-bis(4-(methylthio)phenyl)aniline)] and DTP-OFTPASMe2 [4,4′-(4-(4-methoxyphenyl)-4<em>H</em>-dithieno[3,2-<em>b</em>:2′,3′-<em>d</em>]pyrrole-2,6-diyl)bis(3-fluoro-<em>N,N</em>-bis(4-(methylthio)phenyl)aniline)], with inhibitory effects caused by ethoxy and methoxy phenyl groups, respectively, prevent film aggregation and result in a pinhole-free morphology. Among the four tested HTMs, the device based on the newly developed DTP-OFTPASMe2 HTM demonstrates exceptional promisedelivering an average power conversion efficiency of 18.77% and exhibiting good thermal stability. Subsequently under amibient conditions to promote oxidation, the efficiency was boosted to 21.35% in unsealed devices. Furthermore, air-exposed DTP-OFTPASMe2-based devices maintain their initial efficiency under high-humidity conditions for approximately 83 days, underscoring their robust performance over time.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 29","pages":" 15082-15090"},"PeriodicalIF":5.7,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144695700","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
Reconfigurable artificial synapses with an organic antiambipolar transistor for brain-inspired computing† 可重构人工突触与有机反双极晶体管大脑启发计算†
IF 5.7 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2025-06-12 DOI: 10.1039/D5TC01712B
Ryoma Hayakawa, Yuho Yamamoto, Kosuke Yoshikawa, Yoichi Yamada and Yutaka Wakayama
{"title":"Reconfigurable artificial synapses with an organic antiambipolar transistor for brain-inspired computing†","authors":"Ryoma Hayakawa, Yuho Yamamoto, Kosuke Yoshikawa, Yoichi Yamada and Yutaka Wakayama","doi":"10.1039/D5TC01712B","DOIUrl":"https://doi.org/10.1039/D5TC01712B","url":null,"abstract":"<p >Neuromorphic computing, a nonvon Neumann architecture, holds promise for low-power, high-efficiency data processing. Herein, we demonstrated reconfigurable artificial synapses using a floating-gate-type organic antiambipolar transistor (FG-OAAT) to mimic biological synapses. The FG-OAAT exhibited a Λ-shaped transfer curve with negative differential transconductance. A two-dimensional continuous Au film was used as the floating gate to induce a large peak voltage shift in the Λ-shaped transfer curve by controlling hole- and electron-trapping processes in the floating gate. This feature enabled reconfigurable synaptic operations. Long-term potentiation/depression, excitatory/inhibitory, and paired-pulse facilitation/depression functions were electrically reconfigured by tuning the charge conditions in the floating gate. These versatile synaptic operations were induced by a consistent presynaptic signal, with fixed polarity, applied voltage, and pulse width. These behaviors closely resembled those of biological synapses, highlighting the potential for a brain-like computing architecture that surpasses current von Neumann systems.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 28","pages":" 14234-14241"},"PeriodicalIF":5.7,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/tc/d5tc01712b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144646725","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
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