Physica status solidi (A): Applied research最新文献_第6页

Si‐Doping Effects in AlGaN Channel Layer on Performance of N‐Polar AlGaN/AlN FETs AlGaN通道层中Si掺杂对N极AlGaN/AlN fet性能的影响

Physica status solidi (A): Applied research Pub Date : 2023-07-15 DOI: 10.1002/pssa.202200872

Taketo Kowaki, W. Matsumura, Koki Hanasaku, Ryo Okuno, Daisuke Inahara, S. Matsuda, S. Kurai, Yongzhao Yao, Y. Ishikawa, N. Okada, Y. Yamada

引用次数: 0

Triboelectric Nanogenerator with Nanofiber Dielectric Layer Enriched through Novel Zinc Phthalocyanine Carrying Four O‐Carboranyl Units 新型含4个O -碳硼基单位的酞菁锌富集纳米纤维介电层的摩擦电纳米发电机

Physica status solidi (A): Applied research Pub Date : 2023-07-14 DOI: 10.1002/pssa.202300191

A. Ozen, A. Karabiber, Sevinc Sener, O. İpek, F. Ozel

{"title":"Triboelectric Nanogenerator with Nanofiber Dielectric Layer Enriched through Novel Zinc Phthalocyanine Carrying Four O‐Carboranyl Units","authors":"A. Ozen, A. Karabiber, Sevinc Sener, O. İpek, F. Ozel","doi":"10.1002/pssa.202300191","DOIUrl":"https://doi.org/10.1002/pssa.202300191","url":null,"abstract":"Triboelectric nanogenerator (TENG) technology is one of the new, low‐cost, and simple methods used to convert mechanical energy into electrical energy. Despite having so many advantages, the energy efficiency of this technology is extremely low. Therefore, their current performance needs to be improved so that they can be used more in daily life. Nanofibers (NFs) are one of the most important material groups that can be used for this technology due to their large surface area–volume ratio, easy production, low cost, and simplicity. Herein, Nylon 6.6 and polyacrylonitrile are used as tribopositive and tribonegative dielectric layers, respectively. To increase the output performances of the TENG system, different weight ratios (1, 2, 3 wt%) of phthalocyanine containing zinc‐based carborane units (ZnPc) are added into the Nylon 6.6 NFs. In accordance with the obtained results, the maximum open circuit voltage and power are measured as 228 V and 7.76 mW, respectively. These results correspond for the TENG system with 1% by weight ZnPc doped into the NFs. These results show that high‐efficiency TENG systems can be obtained with nanofiber‐based dielectric layers and can be used effectively in self‐powered systems.","PeriodicalId":87717,"journal":{"name":"Physica status solidi (A): Applied research","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80618751","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

On the Role of Nuclear Motion in Singlet Exciton Fission: The Case of Single‐Crystal Pentacene 核子运动在单重态激子裂变中的作用:以单晶五苯为例

Physica status solidi (A): Applied research Pub Date : 2023-07-14 DOI: 10.1002/pssa.202300304

A. Neef, M. Rossi, M. Wolf, R. Ernstorfer, H. Seiler

引用次数: 0

Utilizing Hydrazine and Hydrogen as Reducing Agents to Control the Nanoscale Surface Morphology of the Palladium Thin Films 利用肼和氢作为还原剂控制钯薄膜的纳米级表面形貌

Physica status solidi (A): Applied research Pub Date : 2023-07-14 DOI: 10.1002/pssa.202200645

B. S. Mpofu, Musindo R. T. Madhovi, Tanaka Majuru, K. Munjeri, Timothy Gutu

{"title":"Utilizing Hydrazine and Hydrogen as Reducing Agents to Control the Nanoscale Surface Morphology of the Palladium Thin Films","authors":"B. S. Mpofu, Musindo R. T. Madhovi, Tanaka Majuru, K. Munjeri, Timothy Gutu","doi":"10.1002/pssa.202200645","DOIUrl":"https://doi.org/10.1002/pssa.202200645","url":null,"abstract":"A key challenge facing fabrication of nanomaterials is the ability to precisely control the surface morphology of the nanostructures through exploitation of process parameters. In this study, palladium thin films with carefully controlled surface morphologies are obtained through the careful choice of the reducing agent used during the pre‐plating activation step in the three‐step autocatalytic electroless plating consisting of 1) surface functionalization; 2) surface activation; and 3) deposition of the film onto alumina substrates. It is important to note that the reducing agents that influenced the surface morphology of the palladium thin films are employed in the pre‐plating activation step instead of the widely utilized electroless deposition step. It is revealed in the high‐resolution scanning electron microscope results that the hydrogen reducing agent yields a dense film with 3D spheroidal morphologies with an average cluster size of ≈415 nm while the hydrazine reducing agent produces a very smooth uniform surface morphology consisting of extremely small grains. The obtained results can be exploited in controlling and tailoring the surface‐dependent properties of the palladium thin film for applications in gas sensors, detectors, or palladium‐based membranes.","PeriodicalId":87717,"journal":{"name":"Physica status solidi (A): Applied research","volume":"180 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86811652","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

Numerical Study of Silicon and Tungsten Diselenide Nanomaterial‐Based Surface Plasmon Resonance Sensor for Refractive Index Sensing 折射率传感用硅钨二硒化纳米材料表面等离子体共振传感器的数值研究

Physica status solidi (A): Applied research Pub Date : 2023-07-11 DOI: 10.1002/pssa.202300340

Annu Yadav, P. Lohia, Sachin Singh, S. Yadav, A. Mishra, D. K. Dwivedi

{"title":"Numerical Study of Silicon and Tungsten Diselenide Nanomaterial‐Based Surface Plasmon Resonance Sensor for Refractive Index Sensing","authors":"Annu Yadav, P. Lohia, Sachin Singh, S. Yadav, A. Mishra, D. K. Dwivedi","doi":"10.1002/pssa.202300340","DOIUrl":"https://doi.org/10.1002/pssa.202300340","url":null,"abstract":"A Kretschmann configuration‐based surface plasmon resonance sensor is proposed. The sensor is made up of calcium fluoride prism, silver, silicon, and tungsten di selenide nanolayer. The theoretical and numerical study of surface plasmon resonance sensor is analyzed by angle interrogation method with the help of MATLAB 2017b. The transfer matrix method (TMM) is the foundation for simulation and a monochromatic light of wavelength 633 nm is considered as source. In the proposed device structure, each layer is arranged in vertical format to improve the electrical and optical properties. The refractive index for analyte is considered as 1.330 to 1.335. Silver (Ag) metal is used for the generation of surface plasmons. It has good chemical properties like metallic conductivity, chemical stability, bandgap, small work function, and acts as an adhesive layer between calcium fluoride prism and silicon layer. To improve the molecular contact and absorption, the transition metal dichalcogenide nanofilm tungsten di selenide (WSe2) is applied at the top. The sensitivity of 367.4 deg RIU−1, detection accuracy of 0.4169 deg−1, quality factor of 193.58, and full‐width half maximum of 1.8985 deg are obtained optimized performance parameters of the proposed device structure.","PeriodicalId":87717,"journal":{"name":"Physica status solidi (A): Applied research","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80886058","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

Extremely High Ferromagnetic Resonance Frequency Induced by Triclinic Lattice Distortion in Epitaxial FeCo/MgAl2O4 (001) Films 外延FeCo/MgAl2O4(001)薄膜中三斜晶格畸变诱导的极高铁磁共振频率

Physica status solidi (A): Applied research Pub Date : 2023-07-11 DOI: 10.1002/pssa.202300438

Congying Ding, Le Wang, Rabiul Islam, Shouheng Zhang, Xia Wang, Hongli Li, W. He, Xing-hua Zhu, Zhao Yao, Zhejun Jin, Guoxia Zhao, Yong Peng, G. Miao, Shandong Li

{"title":"Extremely High Ferromagnetic Resonance Frequency Induced by Triclinic Lattice Distortion in Epitaxial FeCo/MgAl2O4 (001) Films","authors":"Congying Ding, Le Wang, Rabiul Islam, Shouheng Zhang, Xia Wang, Hongli Li, W. He, Xing-hua Zhu, Zhao Yao, Zhejun Jin, Guoxia Zhao, Yong Peng, G. Miao, Shandong Li","doi":"10.1002/pssa.202300438","DOIUrl":"https://doi.org/10.1002/pssa.202300438","url":null,"abstract":"Theoretically, tetragonal lattice distortion of FeCo epitaxial films can result in a very large in‐plane magnetic anisotropy field, leading to an extremely high ferromagnetic resonance (FMR) frequency. Herein, Fe 75 Co 25 $left(text{Fe}right)_{75} left(text{Co}right)_{25}$ thin films are epitaxially grown on (001) MgAl2O4 single‐crystal substrates. A triclinic lattice distortion with a ≠ b ≠ c $a neq b neq c$ , instead of a tetragonal one, is found in the FeCo films. The cubic symmetry breaking leads to a deviation of easy axes from the 100 $100$ directions, forming a distribution of magnetic moments with a strong perpendicular magnetic anisotropy (PMA) along the out‐of‐plane [001] directions and a deviation of the in‐plane components from the ([10 100]) directions. The effective field of the former is as high as 1.5–2.5 T, enough to overcome the thin film shape anisotropy, while that of the latter stays at a low value of around 0.05 T. The strain‐induced PMA gradually relaxes to in‐plane for thicker films with a strained sublayer remaining. As a result, an extremely high out‐of‐plane FMR frequency over 40 GHz is achieved, accompanied by a lower in‐plane FMR frequency around 8 GHz. This study provides a possible approach to prepare self‐biased soft magnetic films with extremely high‐resonance frequency for applications in microwave‐integrated circuits.","PeriodicalId":87717,"journal":{"name":"Physica status solidi (A): Applied research","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78119661","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

Simple Thermal Annealing‐Assisted Direct Synthesis and Optical Property Study of CuO Nanoparticles Incorporated Polyvinyl Alcohol Films 简单热退火辅助直接合成CuO纳米颗粒聚乙烯醇膜及其光学性能研究

Physica status solidi (A): Applied research Pub Date : 2023-07-09 DOI: 10.1002/pssa.202300328

Ram Sevak Singh, R. D. Patidar, Ashutosh Kumar Singh, Kalim Deshmukh, K. Thakur, A. Gautam

{"title":"Simple Thermal Annealing‐Assisted Direct Synthesis and Optical Property Study of CuO Nanoparticles Incorporated Polyvinyl Alcohol Films","authors":"Ram Sevak Singh, R. D. Patidar, Ashutosh Kumar Singh, Kalim Deshmukh, K. Thakur, A. Gautam","doi":"10.1002/pssa.202300328","DOIUrl":"https://doi.org/10.1002/pssa.202300328","url":null,"abstract":"This article reports a simple thermal annealing‐assisted direct synthesis method to prepare copper oxide (CuO) nanoparticles incorporated in polyvinyl alcohol (PVA) films and a systematic study of their optical properties. CuO‐PVA nanocomposite films are prepared with a different weight percentage of CuO in the PVA matrix. Scanning electron microscopy (SEM), X‐ray diffraction (XRD), UV‐visible spectroscopy, and photoluminescence spectroscopy are employed to study the prepared films. XRD confirms the formation of crystalline CuO nanoparticles in PVA, while the SEM analysis shows uniformly distributed spherical nanoparticles in PVA. The findings show that thermal annealing at a mild temperature plays a crucial role in improving the crystallinity and optical properties of the nanocomposite film. In comparison to PVA, CuO‐PVA nanocomposite exhibits improved absorption with a new absorption band in the lower wavelength region. The nanocomposite samples excited with 300 nm show intense photoluminescence (PL) at 365 nm and an increase of PL intensity with CuO concentration in the PVA matrix. In contrast, samples excited with 425 nm show green emission at 550 nm in the visible region of the electromagnetic spectrum. The PL in CuO‐PVA nanocomposites can be originated due to the transitions associated with acceptor and donor defects in the material. The study opens up a new route to fabricate CuO‐PVA nanocomposites with superior optical properties.","PeriodicalId":87717,"journal":{"name":"Physica status solidi (A): Applied research","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73433820","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: 1

Smart phone based Non‐Invasive Glucose Monitoring in Diabetic patients utilizing Enhanced Chemiluminescence Imaging Technique. 利用增强型化学发光成像技术，基于智能手机的糖尿病患者无创血糖监测。

Physica status solidi (A): Applied research Pub Date : 2023-07-08 DOI: 10.1002/pssa.202300077

Priya Singh, Nupur Kumari, Ravi Prakash Ojha, Narsingh Raw Nirala, R. Prakash

引用次数: 0

Transparent Conducting Oxide Nanocrystals: Synthesis, Challenges, and Future Prospects for Optoelectronic Devices 透明导电氧化物纳米晶体:光电子器件的合成、挑战和未来展望

Physica status solidi (A): Applied research Pub Date : 2023-07-08 DOI: 10.1002/pssa.202300351

Averi Guha, Tapas K. Paira, Sanjit Sarkar

引用次数: 0

Fabrication and Damping Property of Porous Cu–Al–Ni Shape Memory Alloys Fabricated using Different Raw Materials 不同原料制备多孔Cu-Al-Ni形状记忆合金的制备及其阻尼性能

Physica status solidi (A): Applied research Pub Date : 2023-07-08 DOI: 10.1002/pssa.202300229

Huan-Yeuh Chu, G. Hao, Puguang Ji, Jianjun Zhang, Tianyuan Zheng, Qingzhou Wang

引用次数: 0