Thermal stability
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Perovskite solar cells with CuSCN hole extraction layers yield stabilized efficiencies greater than 20% Open
Transporter layers improve stability Although perovskite solar cells can have power conversion efficiencies exceeding 20%, they can have limited thermal and ultraviolet irradiation stability. This is in part because of the materials used t…
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Not All That Glitters Is Gold: Metal-Migration-Induced Degradation in Perovskite Solar Cells Open
Perovskite solar cells (PSCs) have now achieved efficiencies in excess of 22%, but very little is known about their long-term stability under thermal stress. So far, stability reports have hinted at the importance of substituting the organ…
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Strategies to approach high performance in Cr3+-doped phosphors for high-power NIR-LED light sources Open
Broadband near-infrared (NIR)-emitting phosphors are key for next-generation smart NIR light sources based on blue LEDs. To achieve excellent NIR phosphors, we propose a strategy of enhancing the crystallinity, modifying the micromorpholog…
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Accelerated discovery of stable lead-free hybrid organic-inorganic perovskites via machine learning Open
Rapidly discovering functional materials remains an open challenge because the traditional trial-and-error methods are usually inefficient especially when thousands of candidates are treated. Here, we develop a target-driven method to pred…
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Characterization of Cellulose Nanocrystals Produced by Acid-Hydrolysis from Sugarcane Bagasse as Agro-Waste Open
Sugarcane bagasse (SCB) is abundantly available agro-waste world-wide and has been used in different applications and its utilization as a source of cellulose attracting attention in the area of biomedical and other applications. The prese…
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Surface passivation engineering strategy to fully-inorganic cubic CsPbI3 perovskites for high-performance solar cells Open
Owing to inevitable thermal/moisture instability for organic–inorganic hybrid perovskites, pure inorganic perovskite cesium lead halides with both inherent stability and prominent photovoltaic performance have become research hotspots as a…
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Two‐Dimensional Fluorinated Graphene: Synthesis, Structures, Properties and Applications Open
Fluorinated graphene, an up‐rising member of the graphene family, combines a two‐dimensional layer‐structure, a wide bandgap, and high stability and attracts significant attention because of its unique nanostructure and carbon–fluorine bon…
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Photodecomposition and thermal decomposition in methylammonium halide lead perovskites and inferred design principles to increase photovoltaic device stability Open
Strategies of how to mitigate photodegradation and thermal degradation processes are proposed in this work in order to further improve operational stability in hybrid perovskite solar cells.
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Polyhydroxyalkanoates: opening doors for a sustainable future Open
Polyhydroxyalkanoates (PHAs) comprise a group of natural biodegradable polyesters that are synthesized by microorganisms. However, several disadvantages limit their competition with traditional synthetic plastics or their application as id…
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Effect of Temperature on the Structural and Physicochemical Properties of Biochar with Apple Tree Branches as Feedstock Material Open
The objective of this study was to study the structure and physicochemical properties of biochar derived from apple tree branches (ATBs), whose valorization is crucial for the sustainable development of the apple industry. ATBs were collec…
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High thermal conductivity of high-quality monolayer boron nitride and its thermal expansion Open
Atomically thin boron nitride is one of the best thermal conductors among semiconductors and insulators.
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Benchmarking Cellulose Nanocrystals: From the Laboratory to Industrial Production Open
The renewability, biocompatibility, and mechanical properties of cellulose nanocrystals (CNCs) have made them an attractive material for numerous composite, biomedical, and rheological applications. However, for CNCs to shift from a labora…
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Highly efficient p-i-n perovskite solar cells that endure temperature variations Open
Daily temperature variations induce phase transitions and lattice strains in halide perovskites, challenging their stability in solar cells. We stabilized the perovskite black phase and improved solar cell performance using the ordered dip…
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CsPbBr<sub>3</sub> QD/AlO<sub><i>x</i></sub> Inorganic Nanocomposites with Exceptional Stability in Water, Light, and Heat Open
Herein, the assembly of CsPbBr 3 QD/AlO x inorganic nanocomposites, by using atomic layer deposition (ALD) for the growth of the amorphous alumina matrix (AlO x ), is described as a novel protection scheme for such QDs. The nucleation and …
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Nanowire Lasers of Formamidinium Lead Halide Perovskites and Their Stabilized Alloys with Improved Stability Open
The excellent intrinsic optoelectronic properties of methylammonium lead halide perovskites (MAPbX3, X = Br, I), such as high photoluminescence quantum efficiency, long carrier lifetime, and high gain coupled with the facile solution growt…
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Improved Phase Stability of Formamidinium Lead Triiodide Perovskite by Strain Relaxation Open
Though formamidinium lead triiodide (FAPbI3) possesses a suitable band gap and good thermal stability, the phase transition from the pure black perovskite phase (α-phase) to the undesirable yellow nonperovskite polymorph (δ-phase) at room …
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The Effect of Nanofillers on the Functional Properties of Biopolymer-Based Films: A Review Open
Waste from non-degradable plastics is becoming an increasingly serious problem. Therefore, more and more research focuses on the development of materials with biodegradable properties. Bio-polymers are excellent raw materials for the produ…
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High-Thermal-Stability and High-Thermal-Conductivity Ti<sub>3</sub>C<sub>2</sub>T<i><sub>x</sub></i> MXene/Poly(vinyl alcohol) (PVA) Composites Open
MXenes, a new family of two-dimensional materials, have recently attracted increasing attention due to their unique properties for a wide range of potential applications. Herein, we synthesize Ti3C2T x /poly(vinyl alcohol) (PVA) composites…
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High-entropy pyrochlores with low thermal conductivity for thermal barrier coating materials Open
High-entropy pyrochlore-type structures based on rare-earth zirconates are successfully produced by conventional solid-state reaction method. Six rare-earth oxides (La2O3, Nd2O3, Sm2O3, Eu2O3, Gd2O3, and Y2O3) and ZrO2 are used as the raw …
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Thermogravimetric Analysis Properties of Cellulosic Natural Fiber Polymer Composites: A Review on Influence of Chemical Treatments Open
Natural fiber such as bamboo fiber, oil palm empty fruit bunch (OPEFB) fiber, kenaf fiber, and sugar palm fiber-reinforced polymer composites are being increasingly developed for lightweight structures with high specific strength in the au…
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Creating Hierarchical Pores by Controlled Linker Thermolysis in Multivariate Metal–Organic Frameworks Open
Sufficient pore size, appropriate stability, and hierarchical porosity are three prerequisites for open frameworks designed for drug delivery, enzyme immobilization, and catalysis involving large molecules. Herein, we report a powerful and…
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On the Use of PLA-PHB Blends for Sustainable Food Packaging Applications Open
Poly(lactic acid) (PLA) is the most used biopolymer for food packaging applications. Several strategies have been made to improve PLA properties for extending its applications in the packaging field. Melt blending approaches are gaining co…
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A Mg-Doped High-Nickel Layered Oxide Cathode Enabling Safer, High-Energy-Density Li-Ion Batteries Open
High-nickel layered oxide cathodes with a Ni content of > 90% show substantial potential for next-generation lithium-ion batteries (LIBs) due to their high capacity and lower cost. However, they are plagued by rapid capacity decay and poor…
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Evaluating the Stability of Co<sub>2</sub>P Electrocatalysts in the Hydrogen Evolution Reaction for Both Acidic and Alkaline Electrolytes Open
The evaluation of the stability of emerging earth-abundant metal phosphide electrocatalysts by solely electrochemical current-potential sweeps is often not conclusive. In this study, we investigated Co2P to evaluate its stability under bot…
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Preparation and Characterization of Polyvinyl Alcohol-Chitosan Composite Films Reinforced with Cellulose Nanofiber Open
In this study microcrystalline cellulose (MCC) was oxidized by 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO)-mediated oxidation. The treated cellulose slurry was mechanically homogenized to form a transparent dispersion which consis…
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Enhanced Charge Transport in 2D Perovskites via Fluorination of Organic Cation Open
Organic-inorganic halide perovskites incorporating two-dimensional (2D) structures have shown promise for enhancing the stability of perovskite solar cells (PSCs). However, the bulky spacer cations often limit charge transport. Here, we re…
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Synergistic strain engineering of perovskite single crystals for highly stable and sensitive X-ray detectors with low-bias imaging and monitoring Open
Although three-dimensional metal halide perovskite (ABX 3 ) single crystals are promising next-generation materials for radiation detection, state-of-the-art perovskite X-ray detectors include methylammonium as A-site cations, limiting the…
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A comparison of cellulose nanocrystals and cellulose nanofibres extracted from bagasse using acid and ball milling methods Open
This study compared the fundamental properties of cellulose nanocrystals (CNC) and cellulose nanofibrils (CNF) extracted from sugarcane bagasse. Conventional hydrolysis was used to extract CNC while ball milling was used to extract CNF. Im…
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Polydimethylsiloxane Composites Characterization and Its Applications: A Review Open
Polydimethylsiloxane (PDMS) is one of the most promising elastomers due its remarkable proprieties such as good thermal stability, biocompatibility, corrosion resistance, flexibility, low cost, ease of use, chemically inertia, hyperplastic…
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Ambient‐Pressure Relithiation of Degraded Li<i><sub>x</sub></i>Ni<sub>0.5</sub>Co<sub>0.2</sub>Mn<sub>0.3</sub>O<sub>2</sub> (0 < <i>x</i> < 1) via Eutectic Solutions for Direct Regeneration of Lithium‐Ion Battery Cathodes Open
With the rapid growth of the lithium‐ion battery (LIBs) market, recycling and re‐use of end‐of‐life LIBs to reclaim lithium (Li) and transition metal (TM) resources (e.g., Co, Ni), as well as eliminating pollution from disposal of waste ba…