Materials Letters: X最新文献

Slowing the crystallization speed to prepare high-efficiency flexible tin-based perovskite solar cells 降低结晶速度以制备高效柔性锡基过氧化物太阳能电池

IF 2.2

Materials Letters: X Pub Date : 2024-11-20 DOI: 10.1016/j.mlblux.2024.100235

Yangyang Wang , Xiegeng Wang , Long Li , Liwen Zhang

引用次数: 0

Large-area solution-processable black phosphorus for electronic application 用于电子应用的大面积可溶液加工黑磷

IF 2.2

Materials Letters: X Pub Date : 2024-06-22 DOI: 10.1016/j.mlblux.2024.100234

Zhen Zhong , Xiuduan Gong , Haihong Wei , Haoran Mu , Jian Yuan

引用次数: 0

Composites with aligned and plasma-surface-modified graphene nanoplatelets and high dielectric constants 具有对齐和等离子体表面改性石墨烯纳米片和高介电常数的复合材料

IF 1.7

Materials Letters: X Pub Date : 2024-04-10 DOI: 10.1016/j.mlblux.2024.100233

Kaito Nagayama , Taku Goto , Koichi Mayumi , Rina Maeda , Tsuyohito Ito , Yoshiki Shimizu , Kohzo Ito , Yukiya Hakuta , Kazuo Terashima

{"title":"Composites with aligned and plasma-surface-modified graphene nanoplatelets and high dielectric constants","authors":"Kaito Nagayama , Taku Goto , Koichi Mayumi , Rina Maeda , Tsuyohito Ito , Yoshiki Shimizu , Kohzo Ito , Yukiya Hakuta , Kazuo Terashima","doi":"10.1016/j.mlblux.2024.100233","DOIUrl":"https://doi.org/10.1016/j.mlblux.2024.100233","url":null,"abstract":"<div>We have developed a method for designing polymer and graphene nanoplatelet (GNP) composites that show high dielectric constants over a wide range of GNP contents. GNPs are dispersed in the composites through plasma-surface modification and aligned by applying an electric field (EF). This creates a large number of microcapacitor structures of GNPs separated by the polymer. The maximum dielectric constant of the sample to which the EF is applied is approximately twice that of the sample to which the EF is not applied. Furthermore, the maximum dielectric constants of the samples with plasma-surface modified GNPs are higher than those of the samples with unmodified GNPs. The composites show high dielectric constants (∼500 at 100 Hz) over a wide range of GNP contents (6 ∼ 10 wt%) while maintaining mechanical flexibility (Young’s modulus:12 ± 4 MPa).</div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":"22 ","pages":"Article 100233"},"PeriodicalIF":1.7,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590150824000061/pdfft?md5=93dd51695a713e811dbe3c5789fe0e13&pid=1-s2.0-S2590150824000061-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140549205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CVD grown bi-layer MoS2 as SERS substrate: Nanomolar detection of R6G and temperature response 作为 SERS 基底的 CVD 生长双层 MoS2：R6G 的纳摩尔检测和温度响应

IF 1.7

Materials Letters: X Pub Date : 2024-03-12 DOI: 10.1016/j.mlblux.2024.100229

Bishnu Pada Majee, Priyanka Jangra, Ashish Kumar Mishra

{"title":"CVD grown bi-layer MoS2 as SERS substrate: Nanomolar detection of R6G and temperature response","authors":"Bishnu Pada Majee, Priyanka Jangra, Ashish Kumar Mishra","doi":"10.1016/j.mlblux.2024.100229","DOIUrl":"https://doi.org/10.1016/j.mlblux.2024.100229","url":null,"abstract":"<div>The two-dimensional bi-layer MoS2 is less investigated as compared to monolayer and few-layer (4–6 layers) MoS2 for fundamental aspects and applications such as photodetectors, transistors, etc. In the present work, we prepare triangular-shaped bi-layer MoS2 over SiO2/Si substrate via chemical vapour deposition (CVD) technique for surface enhanced Raman scattering (SERS) based detection of Rhodamine 6G (R6G). We perform density functional theory calculations and spectroscopy studies to investigate the semiconducting feature of bi-layer MoS2. We demonstrate the nanomolar concentration (10-9 M) limit for R6G detection at room temperature using pristine bi-layer MoS2 as SERS substrate. Further, we also examine the cryogenic response of the SERS detection of R6G with bi-layer MoS2 for the first time. The high detection limit of CVD-grown bi-layer MoS2 is ascribed to the charge transfer enabled via vibronic coupling between MoS2 and R6G molecules. This study paves the way for cryogenic-based SERS sensing.</div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":"22 ","pages":"Article 100229"},"PeriodicalIF":1.7,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590150824000024/pdfft?md5=fa5dcbb41d8d8dcffac1b781737c1b67&pid=1-s2.0-S2590150824000024-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140122331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to “High throughput laser surface micro-structuring of polystyrene by combining direct laser interference patterning with polygon scanner technology” [Mater. Lett.: X 14 (2022) 100144] 对 "将直接激光干涉图案化与多边形扫描仪技术相结合，对聚苯乙烯进行高通量激光表面微结构加工 "的更正 [Mater. Lett.

IF 1.7

Materials Letters: X Pub Date : 2024-03-01 DOI: 10.1016/j.mlblux.2024.100228

Fabian Ränke , Robert Baumann , Bogdan Voisiat , Andrés Fabián Lasagni

引用次数: 0

Luminescence investigation of red emitting CaAlSiO4F: Eu3+ doped phosphor for white LEDs based on oxyfluoride matrix 基于氟氧基质的白光 LED 用红色发光 CaAlSiO4F：Eu3+ 掺杂荧光粉的发光研究

IF 1.7

Materials Letters: X Pub Date : 2023-12-26 DOI: 10.1016/j.mlblux.2023.100224

Rahul V. Tikale , Abhijeet R. Kadam , D.K. Halwar , S.J. Dhoble

{"title":"Luminescence investigation of red emitting CaAlSiO4F: Eu3+ doped phosphor for white LEDs based on oxyfluoride matrix","authors":"Rahul V. Tikale , Abhijeet R. Kadam , D.K. Halwar , S.J. Dhoble","doi":"10.1016/j.mlblux.2023.100224","DOIUrl":"https://doi.org/10.1016/j.mlblux.2023.100224","url":null,"abstract":"<div>A series of Eu3+-doped of CaAlSiO4F red-emitting phosphors for different concentrations were successfully synthesized by using high temperature solid state diffusion method. The phase identification of the prepared phosphor was recorded using x-ray diffraction (XRD). In PL study, the emission peak of prepared phosphor was located at 595 nm and 618 nm due to 5D0 → 7F1 and 5D0 → 7F2 transitions at excitation of 257 nm, 395 nm and 465 nm. Morphological behaviour of prepared sample was analyzed by using scanning electron microscope (SEM). Commission de l'Eclairage chromaticity (CIE) coordinates were analyzed based on the PL emission spectra of the series CaAlSiO4F: Eu3+ activated phosphor. Therefore, these possible outcomes indicate that the CaAlSiO4F: Eu3+ products have great potential applications in solid state lighting industry.</div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":"21 ","pages":"Article 100224"},"PeriodicalIF":1.7,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590150823000443/pdfft?md5=9ee8e3f1cbd1da2eef071d4456bea015&pid=1-s2.0-S2590150823000443-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139100575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Separation, identification and anti-Breast cancer efficacy of anthocyanin of Melia dubia bark 杜鹃树皮花青素的分离、鉴定和抗乳腺癌功效

IF 1.7

Materials Letters: X Pub Date : 2023-12-14 DOI: 10.1016/j.mlblux.2023.100223

G. Dayana Jeyaleela , J. Rosaline Vimala

引用次数: 0

Effect of different substrates on microstructural and optoelectrical properties of thermally evaporated CdSe thin films 不同基底对热蒸发硒化镉薄膜微观结构和光电特性的影响

IF 1.7

Materials Letters: X Pub Date : 2023-12-01 DOI: 10.1016/j.mlblux.2023.100222

Chiranji Lal , Jitendra Singh , Devendra Kumar , Prosenjit Sarkar , Pawan Kumar , Ram S Katiyar

引用次数: 0

Geometrical and electrostatic densities in a highly sparse as-electrospun polystyrene microfiber mat 高度稀疏的静电纺聚苯乙烯微纤维垫的几何和静电密度

IF 1.7

Materials Letters: X Pub Date : 2023-10-20 DOI: 10.1016/j.mlblux.2023.100221

Yuya Ishii

引用次数: 0

Photoluminescence studies of Eu3+ doped bismuth silicate based phosphor for plant grow LEDs Eu3+掺杂硅酸铋基荧光粉用于植物生长led的光致发光研究

IF 1.7

Materials Letters: X Pub Date : 2023-09-29 DOI: 10.1016/j.mlblux.2023.100220

Ekta Chandrawanshi , D.P. Bisen , Nameeta Brahme

{"title":"Photoluminescence studies of Eu3+ doped bismuth silicate based phosphor for plant grow LEDs","authors":"Ekta Chandrawanshi , D.P. Bisen , Nameeta Brahme","doi":"10.1016/j.mlblux.2023.100220","DOIUrl":"https://doi.org/10.1016/j.mlblux.2023.100220","url":null,"abstract":"<div>Artificial red lights of good quality are essential for indoor plant growth as it has a wide spectrum effects on photosynthesis rate and photomorphogenic processes of organic plant growth cycle. In present work we report on Eu3+ doped Bi4Si3O12 (BSO) phosphor for spectroscopic implication in smart plant grow LEDs. Eu3+ activated series of Bi4Si3O12 phosphor have been prepared via traditional solid-state reaction method. Crystal structure and phase formation characterization is determined by using X-ray diffraction (XRD). Photoluminescence spectra of prepared phosphor shows broad excitation spectra ranging from 200 to 530 nm. The optimal Eu3+ doping concentration observed at 3 mol%. Emission spectra observed under the excitation of 270 nm shows broad emission band at 469 nm along with other characteristic peak at 500 nm-710 nm. Observed emission peaks at 622 nm, 656 nm and 702 nm were chosen opt for plant grow lights. The phytochrome PFR absorption spectra of plants matches well with the emission band of our Eu3+ doped BSO phosphor and can be considered as a viable choice for solid state lighting and plant grow light LEDs.</div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":"20 ","pages":"Article 100220"},"PeriodicalIF":1.7,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49742302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0