Optical Materials最新文献_第9页

A low quantum defect and power scalable Yb-doped glass waveguide laser 低量子缺陷和功率可扩展的掺镱玻璃波导激光器

IF 3.8 3区材料科学

Optical Materials Pub Date : 2024-11-01 DOI: 10.1016/j.optmat.2024.116399

Harsh Vaid , Sharashti Saxena , Pradeesh Kannan , Amol Choudhary

引用次数: 0

Synthesis of colloidal snowflake-like silver nanoparticles and their use for SERS detection of pesticide imidacloprid at trace levels 胶体雪花状银纳米粒子的合成及其在痕量农药吡虫啉 SERS 检测中的应用

IF 3.8 3区材料科学

Optical Materials Pub Date : 2024-11-01 DOI: 10.1016/j.optmat.2024.116422

Cao Tuan Anh , Dao Tran Cao , Luong Truc-Quynh Ngan

{"title":"Synthesis of colloidal snowflake-like silver nanoparticles and their use for SERS detection of pesticide imidacloprid at trace levels","authors":"Cao Tuan Anh , Dao Tran Cao , Luong Truc-Quynh Ngan","doi":"10.1016/j.optmat.2024.116422","DOIUrl":"10.1016/j.optmat.2024.116422","url":null,"abstract":"<div><div>Besides conventional methods, trace concentration detection of molecules can now be performed with the emerging surface-enhanced Raman scattering (SERS) spectroscopy. A key factor in achieving high performance in SERS is the quality of the substrate, which must exhibit a high, uniform and reproducible enhancement factor. Silver nano snowflakes (AgNSFs) meet these criteria effectively. In this report, we present a simple procedure to synthesize uniform colloidal AgNSFs, approximately 2 μm in size, by reducing aqueous silver nitrate with hydroxylamine at room temperature. These AgNSFs were then deposited onto an aluminum foil and dried to create a SERS substrate. The performance of this SERS substrate was first tested using rhodamine 6G (R6G), demonstrating detection capabilities down to a concentration of 10<sup>−14</sup> M, with a SERS enhancement factor reached 2.8 × 10<sup>11</sup>, and a high degree of uniformity and reproducibility (with a relative standard deviation less than 9 %). Additionally, when applied to detect the important pesticide imidacloprid (IMI), the substrate enabled detection at concentrations as low as 0.005 mg/L, with a detection limit of 0.1 μg/L (0.1 ppb). These findings suggest that the AgNSFs synthesized in this study have significant potential for application in SERS measurements, particularly in food safety and environmental monitoring applications.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"157 ","pages":"Article 116422"},"PeriodicalIF":3.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Development of flexible and mesoporous CdS/ZnS/PVDF nanocomposites with remarkable organic dye degradation performance under natural sunlight 开发在自然光下具有显著有机染料降解性能的柔性介孔 CdS/ZnS/PVDF 纳米复合材料

IF 3.8 3区材料科学

Optical Materials Pub Date : 2024-11-01 DOI: 10.1016/j.optmat.2024.116373

Sh. Anju Devi , K. Jugeshwar Singh , K. Nomita Devi

{"title":"Development of flexible and mesoporous CdS/ZnS/PVDF nanocomposites with remarkable organic dye degradation performance under natural sunlight","authors":"Sh. Anju Devi , K. Jugeshwar Singh , K. Nomita Devi","doi":"10.1016/j.optmat.2024.116373","DOIUrl":"10.1016/j.optmat.2024.116373","url":null,"abstract":"<div><div>The engineering of polymer-based nanocomposites is a highly promising strategy for improving both the efficiency and stability of catalysts used in wastewater treatment. In this work, we explore the efficacy of flexible CdS/ZnS/PVDF nanocomposite films towards degradation of Malachite Green dye under low energy visible light and ambient sunlight. Films with varying weight percentage of CdS/ZnS nanofillers (0 %, 5 %, 10 %, 15 %, 20 %) were successfully prepared by solution casting method and the physiochemical properties were characterized using various techniques such as XRD, SEM, AFM, EDX, BET, UV–Vis DRS and FTIR. Pore diameter of 5.5 nm was observed, indicating that CdS/ZnS is mesoporous in nature. Under the optimum photocatalytic condition of 15 ppm dye concentration and pH 9, 15 wt% CdS/ZnS/PVDF showed the maximum photodegradation efficiency of 93.5 % in 30 min. The sample exhibited excellent reusability for five consecutive runs of the experiments which show a degradation percentage of 92.1 % in the fifth run and the scavenging study established that superoxide radicals play the major role in the photodegradation process. The experiments under natural sunlight on three separate days showed a remarkable photodegradation performance of 89 %, 93.4 % and 93.6 % highlighting the potential of CdS/ZnS/PVDF nanocomposites for sustainable wastewater treatment under natural sunlight.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"157 ","pages":"Article 116373"},"PeriodicalIF":3.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

High-performance flexible and broadband photodetectors on paper substrates using FeSnS bimetallic sulfide nanosheets 使用 FeSnS 双金属硫化物纳米片在纸基板上实现高性能柔性宽带光电探测器

IF 3.8 3区材料科学

Optical Materials Pub Date : 2024-11-01 DOI: 10.1016/j.optmat.2024.116384

Parth V. Shah , Pratik M. Pataniya , Sohel Siraj , Parikshit Sahatiya , Vasant Sathe , C.K. Sumesh

{"title":"High-performance flexible and broadband photodetectors on paper substrates using FeSnS bimetallic sulfide nanosheets","authors":"Parth V. Shah , Pratik M. Pataniya , Sohel Siraj , Parikshit Sahatiya , Vasant Sathe , C.K. Sumesh","doi":"10.1016/j.optmat.2024.116384","DOIUrl":"10.1016/j.optmat.2024.116384","url":null,"abstract":"<div><div>Advancements in technology have made it easier to construct flexible broadband photodetectors for wearable devices, improving light harvesting and detecting capabilities. This work described a new study that used bimetallic sulfide nanosheets (FeSnS) to produce flexible and broadband photodetectors on paper substrates using hand-print method. A simple, economical, one-step hydrothermal technique was employed to synthesise FeSnS materials, which were characterised using XRD, UV–Vis Spectroscopy, FESEM, EDS, XPS, and UPS. Photodetection tests found that 2-FeSnS (Fe at 2 wt%) outperformed similar work on paper-based devices, with a responsivity of 32.4 mA/W under a 470 nm incident wavelength, high specific detectivity, and a response time of 1.16 s. Durability and flexibility testing validated the robustness of the device. The use of a simple hydrothermal synthesis and hand-print fabrication method to create high-performance, eco-friendly, and flexible photodetectors is novel, expanding their potential applications in wearable electronics, environmental monitoring, and low-cost disposable sensing platforms.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"157 ","pages":"Article 116384"},"PeriodicalIF":3.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Comprehensive review of CZTS deposition techniques and experimental insights into low-temperature chemical synthesis of CZTS thin film solar cells 全面回顾 CZTS 沉积技术以及 CZTS 薄膜太阳能电池低温化学合成的实验启示

IF 3.8 3区材料科学

Optical Materials Pub Date : 2024-11-01 DOI: 10.1016/j.optmat.2024.116427

Raghad Massadeh , Mohammad M. Hamasha

{"title":"Comprehensive review of CZTS deposition techniques and experimental insights into low-temperature chemical synthesis of CZTS thin film solar cells","authors":"Raghad Massadeh , Mohammad M. Hamasha","doi":"10.1016/j.optmat.2024.116427","DOIUrl":"10.1016/j.optmat.2024.116427","url":null,"abstract":"<div><div>This review describes various deposition methods and subsequent processes for synthesizing Cu₂ZnSnS₄ thin films, a promising chalcogenide photovoltaic absorber material from an earth-abundant, non-toxic element inventory. CZTS promises a benign alternative route in contrast to conventional CIGS and CdTe photovoltaics based on rare and expensive elements. The review classifies CZTS fabrication as either a one-step or a two-step process and then elaborates on the different processes involved, such as PLD, electrodeposition, spray pyrolysis, spin coating, and sputtering. Investigation has been carried out in this work for each technique with respect to respective advantages and deficiencies regarding scalability, film quality, and any need for sulfurization to improve crystallinity and phase purity for efficient photovoltaic performance. This work also gives an insight into the experimental study through low-temperature chemical synthesis methodology for depositing CZTS films, while combining techniques such as spin coating and sulfurization in a controlled manner in order to achieve optimized material composition and electronic properties. Characterization through XRD and XPS revealed optimal stoichiometry with minor secondary phases. From this, one can consider that CZTS could be a very promising material candidate toward a scalable, efficient solar cell. The aim of this work is to underpin further advances in CZTS-based photovoltaics by optimization of deposition strategies and improvement in film quality for sustainable energy applications.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"157 ","pages":"Article 116427"},"PeriodicalIF":3.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Various pulse nonlinear evolution and dynamics employing CuCrO2 nanocrystals as a promising saturable absorber 利用 CuCrO2 纳米晶体作为前景广阔的可饱和吸收体的各种脉冲非线性演化和动力学特性

IF 3.8 3区材料科学

Optical Materials Pub Date : 2024-11-01 DOI: 10.1016/j.optmat.2024.116391

Yunping Lan , Jiayuan Han , Yingtian Xu , Chongyang Xu , He Zhang , Weiyan Li , Heng Liu

{"title":"Various pulse nonlinear evolution and dynamics employing CuCrO2 nanocrystals as a promising saturable absorber","authors":"Yunping Lan , Jiayuan Han , Yingtian Xu , Chongyang Xu , He Zhang , Weiyan Li , Heng Liu","doi":"10.1016/j.optmat.2024.116391","DOIUrl":"10.1016/j.optmat.2024.116391","url":null,"abstract":"<div><div>Considering that fiber lasers are a far richer nonlinear optical system, a systematical study on various pulse nonlinear evolution and dynamics by one SA has great significance. However, investigating these important pulse nonlinear dynamic evolution processes of CuCrO<sub>2</sub> nanocrystals as new SAs applied in ultrafast fiber lasers has never been explored. Herein, we demonstrate the excellent nonlinear optical properties of CuCrO<sub>2</sub> nanocrystals and investigate the potential of CuCrO<sub>2</sub> nanocrystals for generating various pulse nonlinear dynamic evolution processes. Firstly, the output characteristics of the passively Q-switching pulsed fiber lasers have been regulated by using CuCrO<sub>2</sub> nanocrystals-polyimide film and a tapered fiber. The pulse duration and repetition rate were simultaneously compressed by 10 and 222 times, the pulse energy and peak power were increased by 79 and 827 times, respectively. Secondly, we are able to generate chaotic multi-pulse wave packets and optical rogue waves by the polarization mode dispersion of single-mode fiber together with the non-instantaneous relaxation of CuCrO<sub>2</sub> nanocrystals. Finally, the transition from chaotic multi-pulse wave packet to giant chirped mode-locked pulse is realized by introducing high nonlinear fibers. Our results show that CuCrO<sub>2</sub> nanocrystals are an efficient nonlinear material for studying various nonlinear phenomena, and give a new impetus to the development of nonlinear optics and ultrafast photonics.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"157 ","pages":"Article 116391"},"PeriodicalIF":3.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Mixed (NH4)2Mn0.47Cu0.53(SO4)2(H2O)6 Tutton salt: A novel optical material for solar-blind technology 混合 (NH4)2Mn0.47Cu0.53(SO4)2(H2O)6 塔顿盐：用于日光盲技术的新型光学材料

IF 3.8 3区材料科学

Optical Materials Pub Date : 2024-11-01 DOI: 10.1016/j.optmat.2024.116400

João G. de Oliveira Neto , Jacivan V. Marques , José G. da Silva Filho , Eduardo Antonelli , Alejandro P. Ayala , Adenilson O. dos Santos , Rossano Lang

{"title":"Mixed (NH4)2Mn0.47Cu0.53(SO4)2(H2O)6 Tutton salt: A novel optical material for solar-blind technology","authors":"João G. de Oliveira Neto , Jacivan V. Marques , José G. da Silva Filho , Eduardo Antonelli , Alejandro P. Ayala , Adenilson O. dos Santos , Rossano Lang","doi":"10.1016/j.optmat.2024.116400","DOIUrl":"10.1016/j.optmat.2024.116400","url":null,"abstract":"<div><div>In this paper, a novel mixed Tutton salt (NH<sub>4</sub>)<sub>2</sub>Mn<sub>0</sub><sub>.</sub><sub>47</sub>Cu<sub>0</sub><sub>.</sub><sub>53</sub>(SO<sub>4</sub>)<sub>2</sub>(H<sub>2</sub>O)<sub>6</sub> obtained in single crystal form is described. Their structural, thermal, electrical, and spectroscopic properties have been examined, and their possible uses are discussed. The salt crystallizes in a monoclinic symmetry (<em>P</em>2<sub>1</sub>/<em>c</em>) and exhibits thermal stability between 300 and 333 K. Above this temperature, the crystal undergoes phase changes associated with dehydration and crystallization processes. 231 optical phonons distributed between 50 and 4000 cm<sup>−1</sup>, calculated through density functional perturbation theory, were used to accurately assign vibrational modes in experimental FT-IR and Raman spectra. Additional computational studies using Hirshfeld surfaces have revealed that H⋯O/O⋯H and H⋯H intermolecular contacts are crucial interactions for stabilizing the crystal lattice. Electrical characteristics (resistivity = 1160 MΩ cm; capacitance = 3.6 pF) and optical data (bandgap = 4.27 eV) depict a typical behavior of nonpolar dielectric materials. UV-Vis-NIR transmittance spectrum has shown deep light blocking in the UV-C and Vis/NIR spectral regions and high transmittance levels (reaching 98.5 %) in the UV-B/-A/Vis range. The photoresponse findings point out that (NH<sub>4</sub>)<sub>2</sub>Mn<sub>0</sub><sub>.</sub><sub>47</sub>Cu<sub>0</sub><sub>.</sub><sub>53</sub>(SO<sub>4</sub>)<sub>2</sub>(H<sub>2</sub>O)<sub>6</sub> is a promising light-absorbing material for solar-blind photodetection devices operating in the 200–280 nm interval. The crystal as a bandpass filter (280–615 nm) or a cut-off filter (615–1000 nm) are also excellent prospects for application.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"157 ","pages":"Article 116400"},"PeriodicalIF":3.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Investigating the optical properties of antimony oxide, Sb2O3 nanomaterials synthesized by spray pyrolysis 研究喷雾热解法合成的氧化锑 Sb2O3 纳米材料的光学特性

IF 3.8 3区材料科学

Optical Materials Pub Date : 2024-11-01 DOI: 10.1016/j.optmat.2024.116405

Hamza Slimani , Agnes C. Nkele , Sawsan Dagher , Adil Alshoaibi , Noureddine Bessous , Boshra Akhozheya , Fabian I. Ezema

{"title":"Investigating the optical properties of antimony oxide, Sb2O3 nanomaterials synthesized by spray pyrolysis","authors":"Hamza Slimani , Agnes C. Nkele , Sawsan Dagher , Adil Alshoaibi , Noureddine Bessous , Boshra Akhozheya , Fabian I. Ezema","doi":"10.1016/j.optmat.2024.116405","DOIUrl":"10.1016/j.optmat.2024.116405","url":null,"abstract":"<div><div>This research focuses on investigating the features of spray-pyrolyzed antimony oxide, Sb<sub>2</sub>O<sub>3</sub> nanomaterials synthesized at molar concentrations of 0.1 M, 0.2 M, 0.3 M, 0.4 M, and 0.5 M. The structural, morphological, elemental, optical, vibration modes, and electrical properties of the films were studied using the respective characterization equipment. X-ray diffractometry (XRD) plots showed a cubic crystal structure with stretchy-like morphology. The elements making up the deposited samples were investigated using energy dispersive X-ray spectroscopy (EDX) spectra. The samples recorded high absorbance features and optical conductivity values that increased at increasing molar concentrations. As the concentration increased, the band gap energies increased from 4.02 eV to 4.09 eV. The Urbach energies also showed slight increase in values from 3.93 eV to 3.97 eV with concentration. The Fourier transform infrared spectroscopy (FTIR) spectra showed the vibration modes and bonds existing between the synthesized compounds. The electrical result revealed increasing film thicknesses with molar concentration. The results show the potential application of the synthesized antimony oxide films in solar cell devices and optical materials.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"157 ","pages":"Article 116405"},"PeriodicalIF":3.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Investigation of Fe thickness effect on the absorption behavior of ZnO/Fe/ZnO tri-layers thin films 研究铁厚度对氧化锌/铁/氧化锌三层薄膜吸收行为的影响

IF 3.8 3区材料科学

Optical Materials Pub Date : 2024-11-01 DOI: 10.1016/j.optmat.2024.116403

S.S. Fouad , E. Baradács , M. Nabil , G. Katona , G. Vecsei , Z. Erdélyi

{"title":"Investigation of Fe thickness effect on the absorption behavior of ZnO/Fe/ZnO tri-layers thin films","authors":"S.S. Fouad , E. Baradács , M. Nabil , G. Katona , G. Vecsei , Z. Erdélyi","doi":"10.1016/j.optmat.2024.116403","DOIUrl":"10.1016/j.optmat.2024.116403","url":null,"abstract":"<div><div>In this paper the methodological framework of the spectrophotometric determination of optical properties in a sandwich ZnO/Fe/ZnO thin films, for various Fe interlayer thickness (20, 40, 60 and −80 nm), were analyzed and discussed, based on the absorption measurements. The thin films were produced using (ALD) and Dc magnetron sputtering techniques. The X-ray reflectivity (XRR), Energy-dispersive X-Ray (EDX) analysis is applied along with the scanning electron microscopy (SEM), were used to determine the thickness and roughness for multilayer stacks on the structural characterization and the quantity of elements on the surface, while the optical absorption, was applied to investigate the effect of the variation of Fe interlayer thickness on surface morphology and optical properties of ZnO/Fe/ZnO thin films. Furthermore, the calculated width of the tail of localized states (E<sub><strong>U</strong></sub>) experienced a significant increase with the increase of Fe interlayer thickness. The Fe interlayer with 20 nm have maximum values of the electron -phonon interaction (Ee<sub>-</sub>p) while the maximum value of the steepness parameter (σ) has occurred in thin films with 80 nm for Fe interlayer thickness. Moreover, the increase of the Fe thickness in the ZnO/Fe/ZnO thin films leads to a decrease in the value of the skin depth (δ), that causes a rise in the charge carrier indicating their influence on the Urbach energy. The above results demonstrates that the ALD is a great technique that introduce a highly efficient and uniform ZnO/Fe/ZnO thin films, that shows remarkable changes in structural and optical properties. Furthermore, incorporation of Fe with different thicknesses on the ZnO thin films indicating their positive influence on the structural and optical properties. This suggests high potential application to be applied in devices fabrication and solar cells.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"157 ","pages":"Article 116403"},"PeriodicalIF":3.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Solvent-based dual detection of Hg2+ and Cr3+ ions by polyvinylpyrrolidone stabilized silver nanoparticles as colorimetric sensor 用聚乙烯吡咯烷酮稳定银纳米粒子作为比色传感器，基于溶剂对 Hg2+ 和 Cr3+ 离子进行双重检测

IF 3.8 3区材料科学

Optical Materials Pub Date : 2024-10-23 DOI: 10.1016/j.optmat.2024.116330

A. Koushalya, K. Anitha

引用次数: 0