Journal of Materials Chemistry C最新文献_第9页

Enhancing the efficiency of CZTSSe solar cells via binary solvent induced microstructure regulation† 通过二元溶剂诱导的微结构调节提高 CZTSSe 太阳能电池的效率†。

IF 5.7 2区材料科学

Journal of Materials Chemistry C Pub Date : 2025-02-07 DOI: 10.1039/D5TC00100E

Sijie Ge, Xuanzhi He, Qianli Zhang, Junjie Lin, Yuchang Zeng, Yudiao Lin, Conglong Lin, Yan Zhang and Xianzhong Lin

{"title":"Enhancing the efficiency of CZTSSe solar cells via binary solvent induced microstructure regulation†","authors":"Sijie Ge, Xuanzhi He, Qianli Zhang, Junjie Lin, Yuchang Zeng, Yudiao Lin, Conglong Lin, Yan Zhang and Xianzhong Lin","doi":"10.1039/D5TC00100E","DOIUrl":"https://doi.org/10.1039/D5TC00100E","url":null,"abstract":"A binary solvent system of dimethyl sulfoxide (DMSO) and isopropanol (IPA) has been developed for preparing high-crystalline kesterite Cu2ZnSn(S,Se)4 (CZTSSe) films. The absorbers made with the single DMSO solvent exhibit a granular microstructure, which can be altered by adding IPA to the solvent. Addition of IPA not only elevates wettability of the solution, but also enhances its volatility, thus enabling the regulation of the formation of cracks in the precursor thin film. Appropriate cracks allow Se vapor to penetrate the precursor film which promotes the grain growth during the selenization process. Hence, the incorporation of IPA into the solvent impacts the crystallinity of the absorber. Large grains can be obtained when the volume ratio of DMSO to IPA is 4 : 1. Both the open-circuit voltage (VOC) and fill factor (FF) are dramatically improved by around 24% and 47%, respectively, with the addition of 20% IPA. As a result, the efficiency of the CZTSSe solar cell has increased from 3.33% to 7.18%.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 12","pages":" 6338-6345"},"PeriodicalIF":5.7,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143667781","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

Natively oxidized 2D NbSe2 enables ultralow-power electrical switching† 天然氧化二维硒化铌实现超低功耗电子开关†.

IF 5.7 2区材料科学

Journal of Materials Chemistry C Pub Date : 2025-02-07 DOI: 10.1039/D4TC04697H

Changying Xiong, Feiyu Tang, Meng Xu, Jiahao Shen, Yi Li, Kan-Hao Xue, Ming Xu and Xiangshui Miao

{"title":"Natively oxidized 2D NbSe2 enables ultralow-power electrical switching†","authors":"Changying Xiong, Feiyu Tang, Meng Xu, Jiahao Shen, Yi Li, Kan-Hao Xue, Ming Xu and Xiangshui Miao","doi":"10.1039/D4TC04697H","DOIUrl":"https://doi.org/10.1039/D4TC04697H","url":null,"abstract":"In the context of the burgeoning information technology industry, the exponential growth in data storage and processing requirements has become increasingly evident. Threshold switching devices stand out as a pioneering solution with enhanced speed, superior integration, and lower energy consumption, marking a significant stride in technological progress. However, the development of these devices is limited by their relatively large leakage current, poor cyclic uniformity, and low endurance. Herein, we introduce a novel threshold switching device with low energy consumption, fairly high uniformity and endurance based on the native oxidized 2D NbSe2 material, where the oxidation product is Nb2O5. This oxide exhibits high resistivity to further reduce the leakage current. As a result, the two-terminal NbSe2/Nb2O5 device exhibits excellent threshold switching performance with low leakage current (∼10 fA) and low operating current (600 fA), which enables ultralow energy consumption (0.63 aJ) and high endurance (106) compared with other 2D materials. Our work offers a new approach for reducing the leakage current of the threshold switching device, thereby paving the way for its applications in data storage and brain-inspired computing.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 12","pages":" 6095-6103"},"PeriodicalIF":5.7,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143667792","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

In situ formation of a low-dimensional perovskite structure for efficient single-crystal MAPbI3 solar cells with enhanced ambient stability†

IF 5.7 2区材料科学

Journal of Materials Chemistry C Pub Date : 2025-02-07 DOI: 10.1039/D4TC04664A

Mingxun Liu, Xinbo Guo, Nianqiao Liu, Changke Jiang, Jian Zhang, Zhaolai Chen and Yu Zhong

{"title":"In situ formation of a low-dimensional perovskite structure for efficient single-crystal MAPbI3 solar cells with enhanced ambient stability†","authors":"Mingxun Liu, Xinbo Guo, Nianqiao Liu, Changke Jiang, Jian Zhang, Zhaolai Chen and Yu Zhong","doi":"10.1039/D4TC04664A","DOIUrl":"https://doi.org/10.1039/D4TC04664A","url":null,"abstract":"Metal halide perovskite solar cells (PSCs) have rapidly advanced in recent years, with the power conversion efficiency surpassing that of silicon solar cells. Even though perovskite single-crystal films possess superior properties due to the absence of grain boundaries, they still present numerous surface defects which serve as non-radiative recombination centers. Therefore, passivating surface defects is crucial for optimizing the performance of single-crystal PSCs (SC PSCs). In this study, the functional molecule 2-phenylethylamine hydroiodide (PEAI) constructing a low-dimensional structure is used for this purpose. The introduction of PEAI enhances the perovskite surface properties by reducing dangling bonds and lowering defect density. As a result, it facilitates charge carrier transport at the interface between the perovskite layer and the charge transport layer. With the influence of PEAI, the efficiency of MAPbI3 SC PSCs enhances from 19.71% to 21.2% and the air stability also increases. This work provides a feasible and effective strategy to improve the efficiency and stability of SC PSCs.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 13","pages":" 6624-6629"},"PeriodicalIF":5.7,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716584","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

Structural design and controlled fabrication of advanced airflow sensors

IF 5.7 2区材料科学

Journal of Materials Chemistry C Pub Date : 2025-02-07 DOI: 10.1039/D4TC05127K

Qinyuan Jiang, Khaixien Leu, Fei Wang, Run Li, Kangkang Wang, Yanlong Zhao, Aike Xi, Yonglu Zang and Rufan Zhang

{"title":"Structural design and controlled fabrication of advanced airflow sensors","authors":"Qinyuan Jiang, Khaixien Leu, Fei Wang, Run Li, Kangkang Wang, Yanlong Zhao, Aike Xi, Yonglu Zang and Rufan Zhang","doi":"10.1039/D4TC05127K","DOIUrl":"https://doi.org/10.1039/D4TC05127K","url":null,"abstract":"Airflow sensors are in huge demand in many fields such as the aerospace industry, weather forecasting, environmental monitoring, chemical and biological engineering, health monitoring, wearable smart devices, etc. Faced with the growing need in intelligent and integrated applications, airflow sensors with higher performance, improved compatibility and multiple functions have attracted wide attention in the fields of sensing, mechanics, and nanotechnology, while the great challenges in structural design and controlled fabrication still remain. So far, researchers have developed various strategies and techniques in the aspects of functional materials, device configurations, and integrated systems, enabling more advanced applications for airflow sensors. In this review, we first introduce the basic working mechanisms of airflow sensors, followed by the proceedings in functional materials and device configurations. The progress in the system integration of airflow sensors is also summarized to demonstrate their compatibility with other functional devices, which leads to their great potential in various application demonstrations. Finally, the possible directions for optimizing airflow sensing performance and broadening application scenarios are listed.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 10","pages":" 4876-4893"},"PeriodicalIF":5.7,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/tc/d4tc05127k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564287","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

Non-diffusive behavior of aluminum and yttrium dopants in ZrO2/Al2O3 and ZrO2/Y2O3 bilayer thin films†

IF 5.7 2区材料科学

Journal of Materials Chemistry C Pub Date : 2025-02-07 DOI: 10.1039/D4TC04917A

Haengha Seo, Jonghoon Shin, Han Sol Park, Tae Kyun Kim, Heewon Paik, Haewon Song and Cheol Seong Hwang

{"title":"Non-diffusive behavior of aluminum and yttrium dopants in ZrO2/Al2O3 and ZrO2/Y2O3 bilayer thin films†","authors":"Haengha Seo, Jonghoon Shin, Han Sol Park, Tae Kyun Kim, Heewon Paik, Haewon Song and Cheol Seong Hwang","doi":"10.1039/D4TC04917A","DOIUrl":"https://doi.org/10.1039/D4TC04917A","url":null,"abstract":"This study investigates the diffusive and non-diffusive behaviors of Al and Y dopants in ZrO2/Al2O3 and ZrO2/Y2O3 stacked thin films grown via atomic layer deposition (ALD), focusing on their interaction with the film's crystallization and grain growth. Contrary to the conventional diffusion theory, this work reveals that the diffusion in these nano-scale thin films is strongly influenced by the formation of through-grain structures rather than concentration gradients. Various thin film stacks analyzed by grazing incidence X-ray diffraction confirm this phenomenon. In the bilayer configurations, the Al and Y dopant layers do not diffuse into the adjacent ZrO2 lattice since they do not necessarily interfere with the continuous grain growth of the ZrO2 layer. However, when the dopant layers are embedded within the ZrO2, which disrupt ZrO2 grain growth at the insertion site, they must diffuse away to form the through-grains and thus lower the grain boundary energy. These findings indicate that the primary driving force for the Al and Y dopant diffusion in ZrO2 thin films is lowering the grain boundary energy, not the concentration gradient. In contrast, thicker (>0.3 nm) Al–O layers maintain structural integrity and inhibit through-grain formation, resulting in no Al diffusion. These results offer insights for implementing dopant layers in various thin film applications.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 12","pages":" 6257-6266"},"PeriodicalIF":5.7,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/tc/d4tc04917a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143667819","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

Transforming Mo0.5W0.5O3 to MoS2: leveraging selective sulfurization for enhanced electrocatalysis†

IF 5.7 2区材料科学

Journal of Materials Chemistry C Pub Date : 2025-02-07 DOI: 10.1039/D4TC04102J

Naveen Goyal, Gokul Raj, Karuna Kar Nanda and N. Ravishankar

{"title":"Transforming Mo0.5W0.5O3 to MoS2: leveraging selective sulfurization for enhanced electrocatalysis†","authors":"Naveen Goyal, Gokul Raj, Karuna Kar Nanda and N. Ravishankar","doi":"10.1039/D4TC04102J","DOIUrl":"https://doi.org/10.1039/D4TC04102J","url":null,"abstract":"Conversion chemistry is a pivotal technique for transforming pre-synthesized nanocrystals into new materials with precise control over their properties. Herein, we have developed a selective sulfurization approach to convert transition mixed metal oxides to their sulfide counterparts. Mixed metal oxide W0.5Mo0.5O3 with a nanobelt morphology has been synthesized as either hydrated (orthorhombic) phase or a non-hydrated (monoclinic) phase. Utilizing a simple hydrothermal method, we selectively sulfurized these phases using thiourea as a sulfur precursor, resulting in the formation of 2D MoS2 with varying size of nanoflowers. The non-hydrated phase exhibited sulfurization kinetics faster than the hydrated phase, indicating that the presence of the water of hydration hindered the attack of incoming sulfide ions. Time-dependent ex situ experiments revealed the formation of MoS2 layers originating from the oxide surface, leading to the formation of a WO3–MoS2 heterostructure as an intermediate. Furthermore, our synthesized WO3–MoS2 heterostructure exhibited superior performance than the template and final products for hydrogen evolution, oxygen evolution and water-splitting reactions, characterized by low overpotential, faster kinetics, high ECSA and increased BET surface area. Overall, this study establishes a pathway for the selective synthesis of 2D layered materials and their heterostructures from mixed metal oxides to design a bifunctional electrocatalyst for water-splitting reaction and can be extended to other materials.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 13","pages":" 6678-6692"},"PeriodicalIF":5.7,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716638","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

A fast, efficient and reversible approach to enhance the electrical conductivity of carbon nanotube films†

IF 5.7 2区材料科学

Journal of Materials Chemistry C Pub Date : 2025-02-06 DOI: 10.1039/D4TC04416A

Changsheng Yin, Ruiwen Hu, Xiaolu Mao, Chunli Cai, Xuhuan Li, Xiaodong Shen and Wenbo Xin

{"title":"A fast, efficient and reversible approach to enhance the electrical conductivity of carbon nanotube films†","authors":"Changsheng Yin, Ruiwen Hu, Xiaolu Mao, Chunli Cai, Xuhuan Li, Xiaodong Shen and Wenbo Xin","doi":"10.1039/D4TC04416A","DOIUrl":"https://doi.org/10.1039/D4TC04416A","url":null,"abstract":"The modification of carbon nanotube (CNT) films is of great significance for improving their performance and expanding their applications. Halogen doping is found to be an effective way to enhance the electrical conductivity of CNT materials; however, the process either requires a harsh environment or time-consuming and tedious operations. In this study, we report a fast processing approach to efficiently enhance the electrical properties of CNT films. Based on a simple electrolytic process, halogens (Cl and Br) are doped into CNT films, inducing electron transfer from CNTs to halogens due to the high electronegativity of halogens. We employ XPS and Raman spectroscopy to confirm the occurrence of halogen (Cl and Br) dopants and the electron transfer phenomenon in the system. We emphasize that this approach allows us to complete the doping process in 90–180 seconds. Cl doping and Br doping increase the electrical conductivity of CNT films by nearly 21 and 20 times, with the values enhanced from 1.31 × 104 S m−1 to 2.73 × 105 S m−1 and to 2.62 × 105 S m−1, respectively. Moreover, the recycling results of doping and annealing show that this approach is revisable, which offers great potential in the emerging nanotechnology fields, such as energy storage, high-sensitivity sensors and electromagnetic interference shielding.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 11","pages":" 5565-5574"},"PeriodicalIF":5.7,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143611968","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

Efficient Sr2Ta2O7:Bi3+,Ln3+ (Ln3+ = Eu3+,Sm3+) phosphors for optical thermometry and anti-counterfeiting†

IF 5.7 2区材料科学

Journal of Materials Chemistry C Pub Date : 2025-02-06 DOI: 10.1039/D4TC04651J

Xin Wang, Shuai Wei, Zeyu Lyu, Dashuai Sun, Taixing Tan, Luhui Zhou, Pengcheng Luo, Zheng Lu, Xiaowei Zhang and Hongpeng You

{"title":"Efficient Sr2Ta2O7:Bi3+,Ln3+ (Ln3+ = Eu3+,Sm3+) phosphors for optical thermometry and anti-counterfeiting†","authors":"Xin Wang, Shuai Wei, Zeyu Lyu, Dashuai Sun, Taixing Tan, Luhui Zhou, Pengcheng Luo, Zheng Lu, Xiaowei Zhang and Hongpeng You","doi":"10.1039/D4TC04651J","DOIUrl":"https://doi.org/10.1039/D4TC04651J","url":null,"abstract":"Designing multifunctional phosphors for optical thermometry and anti-counterfeiting remains a meaningful challenge. In this study, we present a series of Sr2Ta2O7:Bi3+,Ln3+ (Ln3+ = Eu3+, Sm3+) luminescent materials for optical thermometry and anti-counterfeiting. Sr2Ta2O7:Bi3+,Ln3+ phosphors were synthesized, and their crystal structure, luminescence properties, and energy transfer processes were investigated in detail. Under 310 nm excitation, Sr2Ta2O7:Bi3+ exhibits blue light emission at 475 nm, due to the metal–metal charge transfer effect (MMCT) of the Bi3+ ions. Moreover, tunable multicolor luminescence was achieved by codoping Bi3+ and Ln3+ ions. A series of novel optical thermometers with an optimal relative sensitivity of 2.98% K−1 were designed based on the luminescence of the Bi3+ and Ln3+ ions with different temperature sensitivities. High and low temperature cycling experiments demonstrated the reliability of the optical thermometer. Finally, potential applications in fingerprint anti-counterfeiting and discoloration behavior under UV light at different temperatures were explored. These results provide a model for integrating multifunctional optical applications into a single material.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 11","pages":" 5823-5834"},"PeriodicalIF":5.7,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143611961","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

Pd3Se10: a semiconducting cluster-based material†

IF 5.7 2区材料科学

Journal of Materials Chemistry C Pub Date : 2025-02-06 DOI: 10.1039/D4TC03743J

Cullen T. Irvine, Chenguang Wang, Bowen Yu, Tianze Song, Alexander Reifsnyder, Yehia Khalifa, Wolfgang Windl, David W. McComb and Joshua E. Goldberger

{"title":"Pd3Se10: a semiconducting cluster-based material†","authors":"Cullen T. Irvine, Chenguang Wang, Bowen Yu, Tianze Song, Alexander Reifsnyder, Yehia Khalifa, Wolfgang Windl, David W. McComb and Joshua E. Goldberger","doi":"10.1039/D4TC03743J","DOIUrl":"https://doi.org/10.1039/D4TC03743J","url":null,"abstract":"Superatomic clusters have long attracted attention as active components in a broad range of optical and electronic technologies, making the discovery and understanding of new cluster-based materials an important frontier. Here, we establish the optimized synthesis and properties of a metastable palladium selenide Pd3Se10 phase comprised of Pd6Se20 cube-like clusters. The solution-phase electrochemically balanced reaction between Pd2+ and sodium polyselenide precursor mixtures, under precise reaction conditions, enables the formation of a crystalline product in high yields. The Raman fingerprint of Pd6Se20 shows that the cluster is also present in amorphous products that form at lower reaction temperatures. Pd3Se10 is stable up to 340 °C, above which it disproportionates into Se and orthorhombic PdSe2. Finally, the optical absorption, electronic resistivity, and photoconductivity measurements indicate that crystalline Pd3Se10 is semiconducting with a 1.18 eV indirect gap. Overall, this understanding opens a pathway toward accessing a new superatomic building block which has potential in optoelectronic devices.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 12","pages":" 6073-6084"},"PeriodicalIF":5.7,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/tc/d4tc03743j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143667761","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

Research progress on the application of surfactants in superior electromagnetic wave absorbers

IF 5.7 2区材料科学

Journal of Materials Chemistry C Pub Date : 2025-02-05 DOI: 10.1039/D4TC05047A

Zhengtang Su, Chao Chen, Yuhang Long, Gang Chen, Wei Cai, Rongli Gao and Fei Chen

引用次数: 0