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Preparation and morphology controlling of Co3O4 nanostructures and their gas-sensing properties Co3O4 纳米结构的制备、形貌控制及其气体传感特性
IF 1.9 4区 材料科学
MRS Communications Pub Date : 2024-03-20 DOI: 10.1557/s43579-024-00545-4
{"title":"Preparation and morphology controlling of Co3O4 nanostructures and their gas-sensing properties","authors":"","doi":"10.1557/s43579-024-00545-4","DOIUrl":"https://doi.org/10.1557/s43579-024-00545-4","url":null,"abstract":"<h3>Abstract</h3> <p>Co<sub>3</sub>O<sub>4</sub> nanorods and nanosheets were prepared via a facile fluorine-mediated hydrothermal method, followed by thermal conversion. Both the Co<sub>3</sub>O<sub>4</sub> nanorods and nanosheets exhibited a spinel structure, assembling by 30 nm nanograin along one and two dimensions. The primary exposed facet of the Co<sub>3</sub>O<sub>4</sub> nanorods was identified as (110), while the main exposed plane of the Co<sub>3</sub>O<sub>4</sub> nanosheets was (112). Gas sensing results showed the Co<sub>3</sub>O<sub>4</sub> nanorods sensor exhibited higher sensitivity. The Co<sub>3</sub>O<sub>4</sub> nanorods sensor demonstrated excellent sensitivities to toluene and xylene at 200°C, making it a promising candidate for the detection of these specific volatile organic compounds.</p> <span> <h3>Graphical abstract</h3> <p>The response of the Co<sub>3</sub>O<sub>4</sub> nanorods sensor to the test gases at 200°C.</p> <p> <span> <span> <img alt=\"\" src=\"https://static-content.springer.com/image/MediaObjects/43579_2024_545_Figa_HTML.png\"/> </span> </span></p> </span>","PeriodicalId":19016,"journal":{"name":"MRS Communications","volume":"14 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140202553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Evaluating the performance of p-type organic field-effect transistor using different source–drain electrodes 评估使用不同源漏电极的 p 型有机场效应晶体管的性能
IF 1.9 4区 材料科学
MRS Communications Pub Date : 2024-03-20 DOI: 10.1557/s43579-024-00539-2
Mona Azimi, Jiaxin Fan, Fabio Cicoira
{"title":"Evaluating the performance of p-type organic field-effect transistor using different source–drain electrodes","authors":"Mona Azimi, Jiaxin Fan, Fabio Cicoira","doi":"10.1557/s43579-024-00539-2","DOIUrl":"https://doi.org/10.1557/s43579-024-00539-2","url":null,"abstract":"<p>We present our findings on organic field-effect transistors (OFETs) that utilize the conjugated copolymer poly[4-(4,4-dihexadecyl-4H-cyclopenta[1,2-b:5,4-b′]-dithiophen-2-yl)alt[1,2,5]thiadiazolo[3,4-c]pyridine] as the active material, with electrodes composed of arrays of carbon nanotubes (CNTs). We employed three types of source and drain electrodes: gold, titanium, and CNT array electrodes with titanium contact pads. A comparison of characteristics of OFETs using these three different electrodes revealed the effectiveness of CNTs in enhancing charge carrier injection for OFETs. The OFETs based on CNT electrodes showed a twofold increase in the drain current and a threefold increase in charge carrier mobility compared to those with gold electrodes.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":19016,"journal":{"name":"MRS Communications","volume":"16 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140202344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 highly stable and efficient organic microcavity polariton laser 高度稳定、高效的有机微腔偏振子激光器
IF 1.9 4区 材料科学
MRS Communications Pub Date : 2024-03-19 DOI: 10.1557/s43579-024-00543-6
Julia Witt, Andreas Mischok, Florian Le Roux, Malte C. Gather
{"title":"A highly stable and efficient organic microcavity polariton laser","authors":"Julia Witt, Andreas Mischok, Florian Le Roux, Malte C. Gather","doi":"10.1557/s43579-024-00543-6","DOIUrl":"https://doi.org/10.1557/s43579-024-00543-6","url":null,"abstract":"<p>With their remarkably low thresholds, organic polariton lasers are a promising alternative to organic photonic lasers. However, device stability remains a challenge, in part due to material degradation during deposition of the top dielectric mirror. We demonstrate polariton lasers based on 4,4′-Bis(4-(9H-carbazol-9-yl)styryl)biphenyl (BSBCz) as active material that achieve a low lasing threshold of 8.7 μJ/cm<sup>2</sup>, and we show that a ZrO<sub>2</sub> protection layer between active layer and top mirror significantly improves stability. Optimized devices exhibit minimal degradation after 100,000 excitation pulses at 3.8 times above threshold. Our findings establish BSBCz as an attractive candidate for future injection driven polariton lasers.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":19016,"journal":{"name":"MRS Communications","volume":"184 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140202345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Fabrication of a stacked Archimedean spiral reactor with porous carbon walls using 3D-printed PLA as internal sacrificial template and carbonized whey powder as porous carbon matrix 以 3D 打印聚乳酸为内部牺牲模板，以碳化乳清粉为多孔碳基质，制造具有多孔碳壁的叠层式阿基米德螺旋反应器
IF 1.9 4区 材料科学
MRS Communications Pub Date : 2024-03-19 DOI: 10.1557/s43579-024-00544-5
{"title":"Fabrication of a stacked Archimedean spiral reactor with porous carbon walls using 3D-printed PLA as internal sacrificial template and carbonized whey powder as porous carbon matrix","authors":"","doi":"10.1557/s43579-024-00544-5","DOIUrl":"https://doi.org/10.1557/s43579-024-00544-5","url":null,"abstract":"<h3>Abstract</h3> <p>This study introduces a method to create porous carbon structures with intricate internal voids. 3D-printed PLA acts as an internal sacrificial template, combined with carbonized whey powder as the porous carbon matrix. Sintering whey powder at 150°C yields solid pieces that, upon carbonization, result in highly porous carbon objects while maintaining the original mold shape. Temperature control ensures successful whey powder sintering before PLA melting. The use of PLA sacrificial templates, along with whey carbonization, allows for developing devices with finely tailored internal voids, as demonstrated through a double Archimedean spiral reactor with porous carbon walls.</p> <span> <h3>Graphical abstract</h3> <p> <span> <span> <img alt=\"\" src=\"https://static-content.springer.com/image/MediaObjects/43579_2024_544_Figa_HTML.png\"/> </span> </span></p> </span>","PeriodicalId":19016,"journal":{"name":"MRS Communications","volume":"21 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140202467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Temperature- and illumination-dependent recombination of the photoinduced charge carriers in organic–inorganic hybrid perovskite solar cells 有机-无机混合型过氧化物太阳能电池中光诱导电荷载流子的重组与温度和光照有关
IF 1.9 4区 材料科学
MRS Communications Pub Date : 2024-03-18 DOI: 10.1557/s43579-024-00540-9
{"title":"Temperature- and illumination-dependent recombination of the photoinduced charge carriers in organic–inorganic hybrid perovskite solar cells","authors":"","doi":"10.1557/s43579-024-00540-9","DOIUrl":"https://doi.org/10.1557/s43579-024-00540-9","url":null,"abstract":"<h3>Abstract</h3> <p>We present the analytic workflow to understand the temperature and illumination-intensity-dependent recombination of the photoinduced charge carriers in organic–inorganic hybrid perovskite solar cells based on methylammonium lead iodide (CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>) thin films. The temperature-dependent, open-circuit voltage analysis reveals that the recombination of photoinduced charge carriers predominantly occurs at our PEDOT:PSS/CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> interface as well as in the depletion region. Taking into account the structural phase transition in CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> films, as confirmed using temperature-dependent x-ray diffraction spectra and dielectric constant measurements, the illumination-dependent short-circuit current and open-circuit voltage analysis shows both bimolecular and trap-assisted recombination is dominant in our solution-processed perovskite solar cells.</p> <span> <h3>Graphical abstract</h3> <p> <span> <span> <img alt=\"\" src=\"https://static-content.springer.com/image/MediaObjects/43579_2024_540_Figa_HTML.png\"/> </span> </span></p> </span>","PeriodicalId":19016,"journal":{"name":"MRS Communications","volume":"9 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140146380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Recent advancements in achieving high dielectric constant polymer dielectrics for low-power-consumption organic field-effect transistors 用于低功耗有机场效应晶体管的高介电常数聚合物电介质的最新进展
IF 1.9 4区 材料科学
MRS Communications Pub Date : 2024-03-18 DOI: 10.1557/s43579-024-00538-3
Yang Li, Mingqian He
{"title":"Recent advancements in achieving high dielectric constant polymer dielectrics for low-power-consumption organic field-effect transistors","authors":"Yang Li, Mingqian He","doi":"10.1557/s43579-024-00538-3","DOIUrl":"https://doi.org/10.1557/s43579-024-00538-3","url":null,"abstract":"<p>While efforts have been made to optimize organic semiconducting materials to achieve low-power-consumption organic field-effect transistors (OFETs), it is important to note that the choice of gate dielectric materials is equally critical. In general, a high-<i>k</i> polymer dielectric material is highly preferred for low-power-consumption OFETs. In this perspective, we highlight several newly emerged strategies for high dielectric constant polymer dielectrics. By exploiting the recent advances in molecular modulation and morphology control, these new strategies enable remarkably high dielectric constant up to 25–30 for polymer dielectrics, while still maintaining dielectric losses below 0.01 at 1 kHz. We further analyze the advantages and disadvantages of these strategies and propose four design principles—side-chain dipole, rigid free volume, self-assembly, and thermosets—for future polymer gate dielectrics in OFETs.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":19016,"journal":{"name":"MRS Communications","volume":"68 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140146526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Production of manganese-doped ZnO-based NTC thermistor via combustion reaction 通过燃烧反应生产掺锰氧化锌基 NTC 热敏电阻
IF 1.9 4区 材料科学
MRS Communications Pub Date : 2024-03-18 DOI: 10.1557/s43579-024-00542-7
Wictor Magnus Patrício Araújo de Lima, Iris Kemilly Duarte Vieira, Joélcio Lopes de Oliveira Júnior, Danniel Ferreira de Oliveira, Ramon Alves Torquato
{"title":"Production of manganese-doped ZnO-based NTC thermistor via combustion reaction","authors":"Wictor Magnus Patrício Araújo de Lima, Iris Kemilly Duarte Vieira, Joélcio Lopes de Oliveira Júnior, Danniel Ferreira de Oliveira, Ramon Alves Torquato","doi":"10.1557/s43579-024-00542-7","DOIUrl":"https://doi.org/10.1557/s43579-024-00542-7","url":null,"abstract":"<p>This study examines the effects of Mn<sup>2+</sup> doping on the microstructure, morphology, and thermoresistive properties of the Zn<sub>x-1</sub>Mn<sub>x</sub>O system (x = 0.8, 0.15 mol), synthesized via a combustion reaction. After uniaxial pressing (191 MPa) and sintering (1373 K), the samples exhibited NTC thermistor characteristics without a second phase. The decrease in the energy <i>gap</i> to 2.9 eV (Mn08) and 2.69 eV (Mn15), along with average particle sizes of 8.79 µm and 2.91 µm, respectively. The parameters α, β, A, B, C, and SF highlight the influence of Mn<sup>2+</sup> doping on the properties of these materials, with potential applications in NTC thermistor devices.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":19016,"journal":{"name":"MRS Communications","volume":"46 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140146603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 TiO2 nanotubes for photocatalytic degradation reactions through optimization of textural properties 通过优化纹理特性实现光催化降解反应中的高效 TiO2 纳米管
IF 1.9 4区 材料科学
MRS Communications Pub Date : 2024-03-14 DOI: 10.1557/s43579-024-00537-4
Ziba Roostaei, Frédéric Dappozze, Chantal Guillard, Gilles Berhault
{"title":"Highly efficient TiO2 nanotubes for photocatalytic degradation reactions through optimization of textural properties","authors":"Ziba Roostaei, Frédéric Dappozze, Chantal Guillard, Gilles Berhault","doi":"10.1557/s43579-024-00537-4","DOIUrl":"https://doi.org/10.1557/s43579-024-00537-4","url":null,"abstract":"<p>A series of titanium dioxide nanotubes were synthesized via a hydrothermal method. By varying the preparation conditions, nanotubes with different morphologies or textural properties were produced. Various characterization techniques were used to clarify the various features of the as-prepared nanotubes. Samples with surface areas ranging between 200 and 230 m<sup>2</sup>/g in specific surface area exhibit the maximum photocatalytic activity in the degradation of formic acid. Detailed analysis of the structural characteristics emphasizes the complex role played by surface structural defects in the tuning of their photocatalytic performance helping in this way to achieve optimal activity in photooxidation.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":19016,"journal":{"name":"MRS Communications","volume":"389 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140146517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Composite material based on Laves phase with magnesium for hydrogen storage 基于拉维斯相与镁的储氢复合材料
IF 1.9 4区 材料科学
MRS Communications Pub Date : 2024-03-11 DOI: 10.1557/s43579-024-00534-7
V. A. Dekhtyarenko
{"title":"Composite material based on Laves phase with magnesium for hydrogen storage","authors":"V. A. Dekhtyarenko","doi":"10.1557/s43579-024-00534-7","DOIUrl":"https://doi.org/10.1557/s43579-024-00534-7","url":null,"abstract":"<p>An alloy based on the Laves phase, which hydrogenated at room temperature, and magnesium powder were used to create the composite material. Using the method of hydrogen dispersion, the alloy was crushed into a powder with a size of 30 μm. Composite materials were obtained by mixing magnesium with a size of 100 μm and the resulting powders from the alloy for 8 h, followed by pressing. This made it possible to obtain a new type of materials for hydrogen batteries, since they cannot be produced by the traditional casting method, because they do not have mutual solubility.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":19016,"journal":{"name":"MRS Communications","volume":"39 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140097369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Cubic halide perovskites in the Cs(Pb1−xSnx)(Br3−yCly) solid solutions for crack-free Bridgman grown single crystals 无裂纹布里奇曼生长单晶的 Cs(Pb1-xSnx)(Br3-yCly)固溶体中的立方卤化物包晶
IF 1.9 4区 材料科学
MRS Communications Pub Date : 2024-03-11 DOI: 10.1557/s43579-024-00535-6
Aleksandra D. Valueva, Sergei A. Novikov, Joshua Bledsoe, Yile Cai, Alevtina A. Maksimova, Jason Locklin, Yiping Zhao, Vladislav V. Klepov
{"title":"Cubic halide perovskites in the Cs(Pb1−xSnx)(Br3−yCly) solid solutions for crack-free Bridgman grown single crystals","authors":"Aleksandra D. Valueva, Sergei A. Novikov, Joshua Bledsoe, Yile Cai, Alevtina A. Maksimova, Jason Locklin, Yiping Zhao, Vladislav V. Klepov","doi":"10.1557/s43579-024-00535-6","DOIUrl":"https://doi.org/10.1557/s43579-024-00535-6","url":null,"abstract":"<p>Bridgman grown CsPbBr<sub>3</sub> single crystals have demonstrated γ-ray spectra with a high resolution, making them a highly promising competitor for the current benchmark room-temperature radiation detector Cd<sub>1−<i>x</i></sub>Zn<sub><i>x</i></sub>Te. However, CsPbBr<sub>3</sub> crystal growth is a very slow process that oftentimes results in cracked ingots due to phase transitions from cubic to orthorhombic crystal systems. In this report, we demonstrate the stabilization of a room-temperature cubic phase in Cs(Pb<sub>1−<i>x</i></sub>Sn<sub><i>x</i></sub>)(Br<sub>3−<i>y</i></sub>Cl<sub><i>y</i></sub>) solid solutions to overcome this issue. Cs(Pb<sub>0.75</sub>Sn<sub>0.25</sub>)(Br<sub>1.00</sub>Cl<sub>2.00</sub>) was identified as the most promising composition and grown as a crack-free ingot using Bridgman growth in around one week.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":19016,"journal":{"name":"MRS Communications","volume":"56 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140097366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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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