Crystal Research and Technology最新文献

Issue Information: Crystal Research and Technology 5'2025 发行信息：晶体研究与技术5’2025

IF 1.5 4区材料科学

Crystal Research and Technology Pub Date : 2025-05-09 DOI: 10.1002/crat.1585

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Issue Information: Crystal Research and Technology 4'2025 发行信息：晶体研究与技术4'2025

IF 1.5 4区材料科学

Crystal Research and Technology Pub Date : 2025-04-09 DOI: 10.1002/crat.1574

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Nucleation Control and Separation of Ethyl Maltol Polymorphs II and III from Water-Ethanol Solvent Mixtures 水-乙醇混合物中乙基麦芽醇多形物II和III的成核控制和分离

IF 1.5 4区材料科学

Crystal Research and Technology Pub Date : 2025-04-07 DOI: 10.1002/crat.202400274

Anitha Thirumalaisamy, Srinivasan Karuppannan

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Investigating the Influence of Morphologies and Structural Modifications on the Photoelectric Properties of TiOPc for Improved Photodetection 研究形貌和结构修饰对TiOPc光电性能的影响以改进光探测

IF 1.5 4区材料科学

Crystal Research and Technology Pub Date : 2025-04-01 DOI: 10.1002/crat.202400247

Yanshu Shi, Mengke Guo, Yiqian Wang, Xuekun Wang, Jile Wang, Xiaoyun Qin, Yumin Song, Tingting Guo

{"title":"Investigating the Influence of Morphologies and Structural Modifications on the Photoelectric Properties of TiOPc for Improved Photodetection","authors":"Yanshu Shi, Mengke Guo, Yiqian Wang, Xuekun Wang, Jile Wang, Xiaoyun Qin, Yumin Song, Tingting Guo","doi":"10.1002/crat.202400247","DOIUrl":"https://doi.org/10.1002/crat.202400247","url":null,"abstract":"The unique morphology and structure significantly enhance the performance of photoelectric detection. Herein, titanyl phthalocyanine (TiOPc) coarse crystal and microspheres are obtained by a simple physical vapor deposition (PVD) method designed to produce TiOPc structures that undergo significant changes in the crystal structure. The photoelectric experimental results show that the photocurrent of TiOPc coarse crystal and microspheres increases with the increase of voltage and exhibits better stability compared to the raw materials. Under a bias voltage of 10 V, the photoresponsivity of microspheres reaches the maximum, which is 77 times that of raw materials. Under different monochromatic lights, the raw materials are most sensitive to red light (850 nm), with a photocurrent of 1.3556 × 10−6 mA, but the coarse crystal/microspheres are most sensitive to blue light (455 nm) with photocurrents of 1.281 × 10−5 mA/2.609 × 10−5 mA, respectively. It is worth mentioning that although the photocurrent and responsivity of coarse crystal are slightly lower than those of microspheres, the response speed is faster, with a rise/fall time is 271 and 194 ms, respectively. The good photoelectric properties indicate the potential research value of TiOPc coarse crystal and microspheres in the field of photoelectric detection.","PeriodicalId":48935,"journal":{"name":"Crystal Research and Technology","volume":"60 5","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143930273","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}

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Switchable Behavior and Applications of Low-Dimensional Halide Perovskites under External Environmental Stimuli 低维卤化物钙钛矿在外界环境刺激下的转换行为及其应用

IF 1.5 4区材料科学

Crystal Research and Technology Pub Date : 2025-04-01 DOI: 10.1002/crat.202400251

Ruirui Wu, Shunfa Gong, Yijun Wu, Zhiyuan Ren, Huan Liu, Daniela Marongiu, Michele Saba, Rui Chen

{"title":"Switchable Behavior and Applications of Low-Dimensional Halide Perovskites under External Environmental Stimuli","authors":"Ruirui Wu, Shunfa Gong, Yijun Wu, Zhiyuan Ren, Huan Liu, Daniela Marongiu, Michele Saba, Rui Chen","doi":"10.1002/crat.202400251","DOIUrl":"https://doi.org/10.1002/crat.202400251","url":null,"abstract":"The flexibility and adaptability of low-dimensional halide perovskites make them ideal candidates for a wide range of cutting-edge technologies. In addition to their primary applications in photovoltaics, they have recently attracted attention for their potential use in switchable technologies such as smart windows, encrypted messages, and sensors. The interest stems from their switchable properties, which enable them to change their physical properties, in particular photoluminescence and crystal color, in response to external stimuli such as heat, light, pressure, and humidity. This review examines their switchable properties and explores their practical applications in a number of emerging chromic technologies. This paper also provides an in-depth analysis of the reversibility, switchable optical and electrical properties of low-dimensional halide perovskites, and the switching mechanisms involved in the transformations they undergo. In addition, the paper is classified according to different switching mechanisms. To assist the research community in developing new designs for new switchable low-dimensional perovskites, some basic criteria for effective switching materials are outlined here. Finally, the current challenges facing these emerging materials are discussed, and an outlook on future developments and potential breakthroughs in this promising area of research is provided.","PeriodicalId":48935,"journal":{"name":"Crystal Research and Technology","volume":"60 5","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143930272","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

Optimizing Crystallite Size of Synthesized PbS Nanoparticles Using Response Surface Methodology 利用响应面法优化合成PbS纳米颗粒的晶粒尺寸

IF 1.5 4区材料科学

Crystal Research and Technology Pub Date : 2025-03-17 DOI: 10.1002/crat.202400220

Bappaditya Chatterjee, Amitava Bandyopadhyay

{"title":"Optimizing Crystallite Size of Synthesized PbS Nanoparticles Using Response Surface Methodology","authors":"Bappaditya Chatterjee, Amitava Bandyopadhyay","doi":"10.1002/crat.202400220","DOIUrl":"https://doi.org/10.1002/crat.202400220","url":null,"abstract":"Lead sulfide (PbS) nanoparticles are used in gas sensing for which it is necessary to achieve smaller PbS crystallite sizes. However, the operating conditions to produce the minimum size of PbS nanoparticles do not seem to be reported so far. In this light, this article discusses the synthesis of PbS nanoparticles using the Response Surface Methodology (RSM) choosing the face-centered central composite design (FC-CCD) for which a total of 20 (twenty) experiments are required to be conducted. X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM) are used for synthesized PbS samples’ characterization. The smallest PbS crystallite size, as reveals from XRD analysis, is 14.11 nm. All samples' FTIR spectra verified the distinctive peaks of PbS phase. PbS nanoparticle formation is visible in the SEM images. A reduced quadratic polynomial model as obtained from the optimization is found to be accurate. An experiment carried out under optimum conditions confirms the model’s validity in obtaining PbS nanoparticles' crystallite size of 15.62 nm (deviation = + 3.24 %). It can be concluded that the methodology demonstrated in this article could can be applied to synthesize PbS nanoparticles with a minimum crystallite size for use as gas sensors.","PeriodicalId":48935,"journal":{"name":"Crystal Research and Technology","volume":"60 5","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143930469","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

Antisolvent Crystallization for the Size Reduction of Cholecalciferol: Parametric and Optimization Study 抗溶剂结晶法降低胆骨化醇粒径：参数化及优化研究

IF 1.5 4区材料科学

Crystal Research and Technology Pub Date : 2025-03-17 DOI: 10.1002/crat.202400233

Neha Bollineni, Souptik Pal, Krupaben Nanjibhai Vaghamshi, Akash D. Patel, Meghal A. Desai

{"title":"Antisolvent Crystallization for the Size Reduction of Cholecalciferol: Parametric and Optimization Study","authors":"Neha Bollineni, Souptik Pal, Krupaben Nanjibhai Vaghamshi, Akash D. Patel, Meghal A. Desai","doi":"10.1002/crat.202400233","DOIUrl":"https://doi.org/10.1002/crat.202400233","url":null,"abstract":"The active form of vitamin D3, cholecalciferol, is one of the essential constituents that allows most cells to develop and differentiate, and also critical for parathyroid regulation and immune system improvement. Reducing the size of cholecalciferol can offer several benefits, such as improved surface area, enhanced biological activity, and better penetrating power. In this context, antisolvent crystallization is utilized to decrease the particle size of cholecalciferol. The solvent and antisolvent selections are made using Hansen solubility parameters (HSP). The effect of various factors like ratio of antisolvent to solvent (1:1–20:1, v/v), rate of addition (5–40, mL h−1), stirring speed (200–500 rpm), concentration of cholecalciferol (2.5–15, mg mL−1), and temperature (15–30 °C) is assessed using parametric study. The individual and interaction effects are studied using the central composite design (CCD) followed by model formulation and optimization. The lowest particle size (111.6 nm) is obtained at 2.5 mg mL−1 concentration of cholecalciferol, 25 mL h−1 rate of addition, 10:1 (v/v) antisolvent to solvent ratio, 20 °C temperature, and stirring speed of 300 rpm.","PeriodicalId":48935,"journal":{"name":"Crystal Research and Technology","volume":"60 5","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143930470","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}

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Issue Information: Crystal Research and Technology 3'2025 发行信息：晶体研究与技术3’2025

IF 1.5 4区材料科学

Crystal Research and Technology Pub Date : 2025-03-11 DOI: 10.1002/crat.1562

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Frontiers in Organic Nonlinear Terahertz Crystals: Innovations in Structural Design and Optical Nonlinearity 有机非线性太赫兹晶体的前沿：结构设计和光学非线性的创新

IF 1.5 4区材料科学

Crystal Research and Technology Pub Date : 2025-03-06 DOI: 10.1002/crat.202400227

Fanghao Xuan, Qi Chu, Jinkang Ma, Kai Xu, Shoubo Wang, Yumeng Zhai, Xiaoyu Feng, Dongwei Zhai, Lifeng Cao, Bing Teng

{"title":"Frontiers in Organic Nonlinear Terahertz Crystals: Innovations in Structural Design and Optical Nonlinearity","authors":"Fanghao Xuan, Qi Chu, Jinkang Ma, Kai Xu, Shoubo Wang, Yumeng Zhai, Xiaoyu Feng, Dongwei Zhai, Lifeng Cao, Bing Teng","doi":"10.1002/crat.202400227","DOIUrl":"https://doi.org/10.1002/crat.202400227","url":null,"abstract":"The rapid advancement of terahertz (THz) technology has driven an increasing demand for efficient THz sources and detectors, particularly in applications such as spectroscopy, imaging, and wireless communications. Organic (NLO) crystals, renowned for their high nonlinear coefficients, tunability, and flexible molecular design, have emerged as highly promising materials for THz generation. This article highlights the latest progress in the design, synthesis, and investigation of novel organic NLO crystals demonstrating exceptional THz activity, with a focus on recent breakthroughs in ionic and molecular crystals. The discussion delves into the pivotal roles of crystal packing, molecular engineering, and functional group modification in optimizing nonlinear optical properties. Furthermore, the article explores strategies for performance enhancement through molecular engineering and functional group modification, offering insights into the mechanisms driving these advancements. Based on cutting-edge research on advanced NLO crystals, this study examines future research directions and potential applications, emphasizing the critical need for improved crystal growth techniques, refined theoretical modeling, and enhanced material stability. By providing a comprehensive review of the current state of organic THz optical crystals, this article aims to illuminate the challenges and opportunities within this rapidly evolving field, paving the way for future innovations.","PeriodicalId":48935,"journal":{"name":"Crystal Research and Technology","volume":"60 4","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143801636","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

Determination of Third Order Nonlinear Optical Parameters-Nonlinear Refraction, Nonlinear Absorption and Susceptibility of Guanidinium Benzenesulfonate Organic Single Crystal with a Q-Switched Nd-YAG Laser at Two Excitation Wavelengths 双激发波长调q Nd-YAG激光器测定三阶非线性光学参数-苯磺酸胍有机单晶的非线性折射、非线性吸收和磁化率

IF 1.5 4区材料科学

Crystal Research and Technology Pub Date : 2025-02-27 DOI: 10.1002/crat.202400267

Subhasis Das, Tapas Mondal

{"title":"Determination of Third Order Nonlinear Optical Parameters-Nonlinear Refraction, Nonlinear Absorption and Susceptibility of Guanidinium Benzenesulfonate Organic Single Crystal with a Q-Switched Nd-YAG Laser at Two Excitation Wavelengths","authors":"Subhasis Das, Tapas Mondal","doi":"10.1002/crat.202400267","DOIUrl":"https://doi.org/10.1002/crat.202400267","url":null,"abstract":"Third-order nonlinear optical behavior, i.e., nonlinear refraction (n2), absorption coefficient (β), and third-order susceptibility χ(3)of an organic single crystal guanidinium benzenesulfonate are investigated under the excitation of Q-switched Nd-YAG laser pulsed radiations (532 nm and 1064 nm) by Z-scan method at different intensities. The calculated values of (β), (n2) and χ(3) at 532 nm are from 0.38(cm/GW) to 0.65(cm/GW), −3.36 × 10−7(cm2/GW) to −5.37 × 10−7(cm2/GW) and 1.28 × 10−11 (esu) to 2.20 × 10−11 (esu) at the beam intensities of 0.38 GW/cm2 to 0.92 GW/cm2 respectively while the values of (β), (n2) and χ(3) at 1064 nm are from 0.45(cm/GW) to 0.65 (cm/GW), −3.36 × 10−7(cm2/GW) to −5.82 × 10−7(cm/GW) and 0.38 to 0.92 GW cm−2 respectively at the beam intensities of 0.52 to 0.93 GW cm−2. It is seen that crystal possesses a positive absorption coefficient, negative nonlinearity, and RSA, and can be a potential candidate for different practical device applications.","PeriodicalId":48935,"journal":{"name":"Crystal Research and Technology","volume":"60 4","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143801371","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