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Current scenario and future trends on stability issues of perovskite solar cells: A mini review 钙钛矿太阳能电池稳定性问题的现状和未来趋势:一个小综述
IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-04-01 Epub Date: 2025-01-15 DOI: 10.1016/j.cocis.2025.101895
Mohammad Nur-E-Alam , Md Saiful Islam , Tarek Abedin , Mohammad Aminul Islam , Boon Kar Yap , Tiong Sieh Kiong , Narottam Das , Md Rezaur Rahman , Mayeen Uddin Khandaker
Perovskite solar cells (PSCs) are considered a new paradigm in photovoltaic energy technology due to their extraordinary power conversion capabilities. However, their commercialization is hindered by stability issues. The current understanding of PSC degradation mechanisms focuses on factors such as moisture, oxygen, light, temperature, and electrical bias are comprehensively analyzed in this review article. The essential encapsulation strategies require further refinement for long-standing stability. Material engineering, including compositional tuning and defect passivation, has shown promise in enhancing intrinsic perovskite stability. Interface tuning between the perovskite layer and charge transport materials (hole and electron transport layers) is crucial for suppressing ion migration and charge recombination. Additionally, the advanced characterization techniques offer to dive into the degradation pathways, enabling targeted stability improvements. Despite substantial progress in obtaining higher efficiency in PSCs, it is still challenging to achieve the expected stability in PSCs. The development of novel perovskite materials with enhanced structural stability, improved encapsulation strategies, and an understanding of degradation mechanisms at the molecular level should be the imminent research focus with the development of accelerated testing methodologies and field trials essential for evaluating long-standing performance. PSCs will be a major contributor to renewable energy generation once the stability issues with their structure are erased.
钙钛矿太阳能电池(PSCs)由于其非凡的功率转换能力而被认为是光伏能源技术的新范例。然而,它们的商业化受到稳定性问题的阻碍。本文对目前对PSC降解机制的认识主要集中在水分、氧气、光、温度和电偏压等因素上进行了综合分析。基本的封装策略需要进一步改进以实现长期的稳定性。材料工程,包括成分调谐和缺陷钝化,已经显示出增强钙钛矿固有稳定性的希望。钙钛矿层和电荷输运材料(空穴和电子输运层)之间的界面调整对于抑制离子迁移和电荷复合至关重要。此外,先进的表征技术可以深入研究降解途径,从而有针对性地提高稳定性。尽管PSCs在获得更高效率方面取得了实质性进展,但要实现预期的PSCs稳定性仍然具有挑战性。开发具有增强结构稳定性、改进封装策略和在分子水平上理解降解机制的新型钙钛矿材料应该是迫在眉睫的研究重点,同时开发加速测试方法和现场试验对于评估长期性能至关重要。一旦PSCs结构的稳定性问题被消除,它将成为可再生能源发电的主要贡献者。
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引用次数: 0
Linear viscoelasticity of physically aging soft glassy (Thixotropic) materials 物理老化软玻璃(触变)材料的线性粘弹性
IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-04-01 Epub Date: 2025-01-21 DOI: 10.1016/j.cocis.2025.101896
Yogesh M. Joshi
Soft glassy materials are distinguished by their arrested microstructures and out-of-equilibrium thermodynamic states. These materials exhibit time dependent evolution of viscoelastic properties, driven by structural buildup under quiescent conditions, known as physical aging. As a result, they do not obey the standard linear viscoelastic framework, which is well-established for equilibrium materials. This article explores the application of linear viscoelastic principles to soft glassy materials by employing the effective time theory that readjusts the material clock to address the time dependence associated with the same. We explore how the effective time domain approach validates key linear viscoelastic principles, including the Boltzmann superposition principle, convolution relation, time–temperature superposition, time–stress superposition, and the Fourier transform relationship between relaxation modulus and complex modulus. We also discuss the relationship between soft glassy materials and thixotropy. These insights highlight the critical role of effective time in comprehending the intricate rheological characteristics of soft glassy materials.
软玻璃材料的特点是其微观结构停滞和热力学状态不平衡。这些材料表现出粘弹性性能随时间的演变,由静态条件下的结构积累驱动,称为物理老化。因此,它们不服从标准的线性粘弹性框架,这是公认的平衡材料。本文探讨了线性粘弹性原理在软玻璃材料中的应用,采用有效时间理论,重新调整材料时钟,以解决与之相关的时间依赖性。我们探讨了有效时域方法如何验证关键的线性粘弹性原理,包括玻尔兹曼叠加原理、卷积关系、时间-温度叠加、时间-应力叠加以及松弛模量和复模量之间的傅里叶变换关系。我们还讨论了软玻璃材料与触变性的关系。这些见解强调了有效时间在理解软玻璃材料复杂的流变特性中的关键作用。
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引用次数: 0
Self-assembly of magnetic colloids under unsteady fields 非定常磁场下磁性胶体的自组装
IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-04-01 Epub Date: 2025-01-30 DOI: 10.1016/j.cocis.2025.101903
G. Camacho, J.R. Morillas, J. de Vicente
The use of magnetic fields offers an external, versatile way of controlling self-assembly of colloids. This review provides an exhaustive overview of unsteady fields that can vary in one, two, or three dimensions of space, as a powerful tool to direct the self-assembly of magnetic colloids into structures with tunable properties. Unlike steady fields, unsteady (nonstationary) fields can overcome the limitations of classical dipolar interactions, leading to a much wider range of structures, ranging from dense crystalline aggregates to 3D spanning networks, or dynamic clusters. The ability to precisely control the amplitude, frequency, and field direction allows for fine-tuning the interplay of interparticle forces, resulting in controllable assembly pathways. This review analyzes how different types of unsteady fields influence the morphology and dynamics of the self-assembled structures. Key parameters, such as the Mason number, are discussed to characterize the governing driving forces, and potential applications are highlighted.
磁场的使用提供了一种外部的、通用的方法来控制胶体的自组装。这篇综述提供了一个详尽的非定常场的概述,可以在一个,两个,或三维空间变化,作为一个强大的工具来指导磁性胶体的自组装成具有可调性质的结构。与稳定场不同,非定常(非定常)场可以克服经典偶极相互作用的局限性,从而产生更广泛的结构,从密集的晶体聚集体到3D跨越网络或动态簇。精确控制振幅、频率和场方向的能力允许微调粒子间力的相互作用,从而实现可控的组装路径。本文分析了不同类型的非定常场对自组装结构形态和动力学的影响。讨论了关键参数,如梅森数,以表征控制驱动力,并强调了潜在的应用。
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引用次数: 0
Polymer – surfactant interactions and compatibility for ionic surfactants combined with hydrophilic polymers: Stability and miscibility vs. segregative or associative phase separation and deposition 聚合物-表面活性剂的相互作用和离子表面活性剂与亲水性聚合物的相容性:稳定性和混溶性与分离或结合相分离和沉积
IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-04-01 Epub Date: 2024-12-30 DOI: 10.1016/j.cocis.2024.101894
Tobias Halthur , Jonas Carlstedt
The phase behavior of aqueous mixtures of polymers and surfactants has been widely studied over the past thirty years. Not only for the academic interest in the richness in the structures formed, but also for the potential this combination holds in a number of different applications, ranging from cleaning products and cosmetics to pharmaceuticals and oil recovery. However, when developing these products, it is essential to know when the species are miscible, when the aim might be to build viscosity, or how to trigger associative phase separation, as for deposition of coacervates in care shampoos. The phase behavior is not only determined by the choice of the polymer and surfactant, but also to a large extent affected by additions of co-surfactants and salt, which will be discussed in this review. Additional aspects to be considered for less-studied, more natural and sustainable polymers and surfactants will also be presented.
在过去的三十年里,人们对聚合物和表面活性剂的水相混合物的相行为进行了广泛的研究。不仅因为其丰富的结构在学术上的兴趣,也因为这种组合在许多不同的应用中所具有的潜力,从清洁产品和化妆品到制药和石油回收。然而,在开发这些产品时,必须知道什么时候物种是可混溶的,什么时候目的可能是建立粘度,或者如何触发结合相分离,如在护理洗发水中沉积凝聚体。相行为不仅取决于聚合物和表面活性剂的选择,而且在很大程度上受助表面活性剂和盐的加入的影响,本文将对此进行讨论。对于研究较少、更天然、更可持续的聚合物和表面活性剂,还将提出其他需要考虑的方面。
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引用次数: 0
Synergistic effect of limestone and supplementary cementitious materials in ternary blended cements 石灰石与补充胶凝材料在三元水泥中的协同作用
IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-02-01 Epub Date: 2024-12-07 DOI: 10.1016/j.cocis.2024.101885
Luca Campagiorni, Monica Tonelli, Francesca Ridi
This review offers an introductory examination of the challenges involved in formulating limestone-based ternary blended cements intended for both specialists and nonexperts in cement chemistry. The environmental impact of cement production and the raising awareness on climate changes has led to a progressive shift toward sustainable practices, emphasizing the critical need for eco-friendly construction materials. Here, the motivation for adopting ternary blends is explored, with a particular focus on supplementary cementitious materials (SCMs) otherwise classified as wastes, such as ground granulated blast-furnace slag, silica fume, fly ash, and metakaolin, which contribute to sustainability improvements. To facilitate understanding, a glossary of technical terms is provided alongside an overview of the cement hydration process and the distinct characteristics of various SCMs.
The review focuses on the performance of binary and ternary cement blends, giving particular consideration to the synergistic effects observed when limestone is combined with SCMs in ternary formulations. Key properties of specific ternary blends are highlighted, unraveling their potential to enhance both performance and environmental sustainability. Finally, the review provides a perspective for future developments, reflecting on the broader implications of these materials for promoting sustainable construction practices within the industry.
本综述为水泥化学领域的专家和非专家介绍了配制石灰石基三元水泥所面临的挑战。水泥生产对环境的影响以及对气候变化意识的提高导致了向可持续实践的逐步转变,强调了对环保建筑材料的迫切需求。本文探讨了采用三元共混物的动机,特别关注补充胶凝材料(SCMs),否则被归类为废物,如磨碎的粒状高炉炉渣、硅灰、粉煤灰和偏高岭土,它们有助于改善可持续性。为了便于理解,本文提供了一个技术术语表,同时概述了水泥水化过程和各种scm的独特特性。本文重点介绍了二元和三元水泥共混物的性能,特别考虑了石灰石与超临界水泥在三元配方中结合时所观察到的协同效应。重点介绍了特定三元共混物的关键特性,揭示了它们在提高性能和环境可持续性方面的潜力。最后,该综述为未来的发展提供了一个视角,反映了这些材料对促进行业内可持续建筑实践的更广泛影响。
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引用次数: 0
Dynamic surface tension of polymer–surfactant mixtures at water–gas interfaces 聚合物-表面活性剂混合物在水气界面处的动态表面张力
IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-02-01 Epub Date: 2024-11-22 DOI: 10.1016/j.cocis.2024.101877
Hernán A. Ritacco, Marcos Fernández Leyes, Jhon Sánchez Morales
Mixtures of polymers and surfactants in water are versatile systems used in formulating foams across a spectrum of industries, including food, cosmetics, pharmaceuticals, and oil, among others. The kinetic mechanisms governing the transfer of surfactant (S) and polymer (P) molecules, as well as their complexes (PS), from bulk to the interface, are pivotal in both the production and stabilization of aqueous foams. Despite its critical role, dynamic surface tension of PS mixtures remains relatively underexplored. This article aims to critically review the literature regarding our current understanding of the adsorption dynamics of polymer–surfactant mixtures at the air–solution interface. Special emphasis will be placed on the kinetics of adsorption during short, far-from-equilibrium times, which are crucial in determining the foamability of a system. The article will highlight the significance of P–S interactions and dynamics in the bulk for a comprehensive understanding of the adsorption dynamics at fluid interfaces.
聚合物和表面活性剂在水中的混合物是一种通用的系统,用于各种行业的泡沫配方,包括食品、化妆品、制药和石油等。控制表面活性剂(S)和聚合物(P)分子及其配合物(PS)从体向界面转移的动力学机制,对于水泡沫的产生和稳定至关重要。尽管PS混合物的动态表面张力起着至关重要的作用,但对其的研究相对较少。本文旨在批判性地回顾我们目前对聚合物-表面活性剂混合物在空气-溶液界面的吸附动力学的理解的文献。特别的重点将放在短期内的吸附动力学,远离平衡时间,这是决定一个系统的泡沫性的关键。本文将强调P-S相互作用和动力学在体中对流体界面吸附动力学的全面理解的重要性。
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引用次数: 0
Development of amino acid-based surfactants: from synthesis to applications 氨基酸基表面活性剂的发展:从合成到应用
IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-02-01 Epub Date: 2024-11-29 DOI: 10.1016/j.cocis.2024.101884
Krister Holmberg, Frida Bilén, Romain Bordes
The diversity of both natural and non-natural amino acids provides a strong foundation for the synthesis of a wide array of surfactants and offers the possibility to control the interactions at interfaces and within self-assembly processes.
This review provides an overview of the latest developments of amino acid-based surfactant over the past decade, with a particular focus on the past five years. A detailed overview of the synthesis is first given, and physicochemical properties of surfactants derived from both standard amino acids, and non-natural amino acids are discussed. From enhancing foaming to controlling rheological properties, these surfactants meet a wide range of application-specific requirements. This is illustrated in various fields, such as drug delivery or mineral ore flotation.
Although single amino acid derivatives have been deeply explored, surfactants based on multiple amino acids are also discussed for the new possibilities in self-assembly and potential various applications they offer.
天然和非天然氨基酸的多样性为各种表面活性剂的合成提供了坚实的基础,并为控制界面和自组装过程中的相互作用提供了可能性。本文综述了近十年来氨基酸基表面活性剂的最新进展,重点介绍了近五年的研究进展。本文首先对其合成进行了详细的综述,并讨论了从标准氨基酸和非天然氨基酸中提取的表面活性剂的理化性质。从增强泡沫到控制流变性能,这些表面活性剂满足了广泛的特定应用要求。这在许多领域都有体现,例如药物输送或矿物浮选。虽然单氨基酸衍生物已被深入探索,但基于多氨基酸的表面活性剂也因其自组装的新可能性及其潜在的各种应用而被讨论。
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引用次数: 0
Diffusing wave spectroscopy for the study of emulsions on-ground and in microgravity 地面和微重力条件下乳剂的扩散波光谱研究
IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-02-01 Epub Date: 2024-12-24 DOI: 10.1016/j.cocis.2024.101892
Davide Orsi , Valentina Lorusso , Marco Vaccari, Luigi Cristofolini
We review the approaches, both experimental and modelling, and the main results obtained recently in the investigation of emulsions by diffusing wave spectroscopy (DWS). DWS is a correlation spectroscopy based on the analysis of the time structure of the scattered light emerging from a laser-illuminated opaque sample. Such a noninvasive technique is well suited to the investigation of drop size distribution and drop dynamic in emulsions. This dynamic determines the evolution, and finally the fate, of emulsions. The results obtained in a laboratory are complemented by the very recent results obtained in microgravity (the condition of absence of weight obtained in orbit) onboard the International Space Station: mastering emulsions in such exotic conditions not only offers new insight into the basic physical phenomena but may also provide new enabling technologies to ensure comfortable living environments and safe foods to the astronauts engaged in long space flights.
本文综述了利用扩散波光谱(DWS)研究乳剂的实验方法和模型方法,以及近年来取得的主要结果。DWS是一种基于对激光照射不透明样品散射光时间结构分析的相关光谱学。这种无创技术非常适合于乳状液中液滴大小分布和动态的研究。这种动态决定了乳剂的演变,并最终决定了乳剂的命运。在实验室中获得的结果与最近在国际空间站上的微重力(轨道上没有重量的条件)中获得的结果相补充:在这种奇特的条件下掌握乳剂不仅提供了对基本物理现象的新见解,而且还可能提供新的使能技术,以确保从事长期太空飞行的宇航员的舒适生活环境和安全食品。
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引用次数: 0
Liposomes: Bridging the gap from lab to pharmaceuticals 脂质体:弥合从实验室到药物的差距
IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-02-01 Epub Date: 2024-11-16 DOI: 10.1016/j.cocis.2024.101875
Remo Eugster, Paola Luciani
Liposomes are versatile and effective drug delivery systems, as highlighted by various medical applications. Their well-defined bilayer structure is suited for the encapsulation of drugs with diverse chemical properties and for a variety of release strategies. Understanding liposome self-assembly and structure is crucial for enhancing drug development and delivery efficiency. Herein, we review the self-assembly process of liposomes and transfer this knowledge to means of production. The challenges and opportunities of scaling liposomal production are discussed. Key techniques, to characterize the particles, their interface and composition, essential for market approval, are outlined. Views on novel computational methods to deepen the lipid behavior at interfaces and accelerate liposome development are given, including opinions on using artificial intelligence to support liposome production.
脂质体是一种多功能的、有效的药物输送系统,在各种医学应用中得到了突出的应用。其良好定义的双层结构适用于不同化学性质的药物的包封和各种释放策略。了解脂质体的自组装和结构对提高药物开发和给药效率至关重要。在这里,我们回顾了脂质体的自组装过程,并将这些知识转移到生产手段上。讨论了规模化生产脂质体的挑战和机遇。概述了表征颗粒,其界面和组成的关键技术,这对市场批准至关重要。提出了新的计算方法来深化界面脂质行为和加速脂质体的发展,包括利用人工智能支持脂质体生产的观点。
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引用次数: 0
Driving the future of cosmetics, fragrances, and foods with COSMO-RS. Part 1—Bibliometric analysis and introductory framework 用cosmos - rs推动化妆品、香水和食品的未来。第一部分:文献计量学分析和导论框架
IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-02-01 Epub Date: 2024-11-23 DOI: 10.1016/j.cocis.2024.101874
Théophile Gaudin , Jean-Marie Aubry
This two-part review offers an in-depth survey of the utilization of the theoretical method COnductor-like Screening MOdel for Realistic Solvation (COSMO-RS) in the formulation of cosmetics, fragrances, and foods. In this first part, a bibliometric analysis and mapping of scientific literature and patents are performed. They reveal that COSMO-RS primarily serves as a screening tool for generating quantitative predictions regarding the solubilization, volatility, and extraction of formulation ingredients from biomass. This analysis also identifies the most relevant COSMO-RS applications and tools available for formulation. They are presented in a concise and accessible manner for formulators and specialty chemists involved in ingredient design. Finally, a focus is made on the applications of COSMO-RS in designing and modeling innovative and sustainable solvents, such as ionic liquids and (natural) deep eutectic solvents. The second part of the article will address the practical implementation of COSMO-RS in solving key formulation challenges.
本文分为两部分,综述了现实溶剂化类导体筛选模型(cosmos - rs)理论方法在化妆品、香水和食品配方中的应用。在第一部分中,对科学文献和专利进行了文献计量分析和制图。他们发现cosmos - rs主要是作为一种筛选工具,用于产生关于生物质配方成分的增溶、挥发性和提取的定量预测。该分析还确定了最相关的cosmos - rs应用和可用于制定的工具。它们以简明易懂的方式呈现给配方师和参与成分设计的专业化学家。最后,重点介绍了COSMO-RS在离子液体和(天然)深共晶溶剂等创新和可持续溶剂的设计和建模中的应用。文章的第二部分将讨论COSMO-RS在解决关键配方挑战方面的实际实施。
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引用次数: 0
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Current Opinion in Colloid & Interface Science
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