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Journal articles on the topic 'Multilayer Stack Assemblies'

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1

Pan, Tsung-Yu, and Yi-Hsin Pao. "Deformation in Multilayer Stacked Assemblies." Journal of Electronic Packaging 112, no. 1 (1990): 30–34. http://dx.doi.org/10.1115/1.2904337.

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A linear-elastic analytical model has been developed to describe the deformed geometry of a multi-layered stack assembly subject to thermal loading. The model is based on Timoshenko’s bimetal thermostat analysis [1] and consists of a series of first-order polynomial equations. The radius of curvature, bending moment, force, horizontal and vertical displacements can be determined numerically. These quantities match well with finite element analysis. Calculations for silicon power transistor stacks are presented in order to demonstrate the model capability. The results from this analyitcal model
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2

Janaky, Csaba. "(Invited) Managing Complexity in Carbon-Dioxide Electroreduction: A Journey from Nanoparticulate Catalysts to Pilot Plants." ECS Meeting Abstracts MA2025-01, no. 41 (2025): 2182. https://doi.org/10.1149/ma2025-01412182mtgabs.

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Electrochemical reduction of CO2 is a promising method for converting a greenhouse gas into value-added products, utilizing renewable energy. Novel catalysts, electrode assemblies, and cell configurations are all necessary to achieve economically appealing performance. In my talk, I am going to present our most recent results on the electrochemical CO2 -to-CO and CO-to-ethylene conversion. I will show how proper cell components and operational conditions result in unprecedentedly high partial current densities in zero-gap cells. I will demonstrate the role of each component of the membrane ele
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3

Ding, Wenxiang, Zhaofeng Liang, Wei Zhao, et al. "Modeling and Characterization of Multilayer Piezoelectric Stacks via Dynamic Stiffness Method." Micromachines 16, no. 1 (2024): 20. https://doi.org/10.3390/mi16010020.

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Multilayer piezoelectric stacks, which are multiple layers of piezoelectric materials placed on top of each other, are widely used to achieve precise linear movement and high-force generation. In this paper, a dynamic stiffness (DS) method for the dynamic vibration analysis of multilayer piezoelectric stacks is presented. First, the general solutions for all physical quantities of the three vibration contributions (i.e., pure vibration, symmetrically coupled vibration, and anti-symmetrically coupled vibration) are derived from the governing equations of motion. Then, the DS matrices of each la
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4

Janaky, Csaba. "What Is Needed for Industrial Carbon-Dioxide Electroreduction: From Electrode Development to Process Optimization." ECS Meeting Abstracts MA2023-02, no. 24 (2023): 1324. http://dx.doi.org/10.1149/ma2023-02241324mtgabs.

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Electrochemical reduction of CO2 is a promising method for converting a greenhouse gas into value-added products, utilizing renewable energy. Novel catalysts, electrode assemblies, and cell configurations are all necessary to achieve economically appealing performance. In this talk, I am going to present a zero gap electrolyzer cell, which converts gas phase CO2 to products without the need for any liquid catholyte. This is the first report of a CO2 electrolyzer cell, where multiple cells are connected into a stack, thus scaling up the electrolysis process. I will show how proper cell componen
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5

Pavlichenko, Ida, Armin T. Exner, Gennady Logvenov, Giuseppe Scarpa, Paolo Lugli, and Bettina V. Lotsch. "Nanomorphology tuning of the thermal response of TiO2/SiO2 Bragg stacks." Canadian Journal of Chemistry 90, no. 12 (2012): 1069–77. http://dx.doi.org/10.1139/v2012-081.

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Herein, we present a comparative study of thermo- and environmentally responsive TiO2/SiO2 one-dimensional photonic crystals (Bragg stacks) fabricated by different deposition methods and fabrication schemes, featuring various multilayer nanomorphologies. These include dense multilayer systems processed by physical vapor deposition and wet-chemistry protocols, as well as porous systems, namely, nanoparticle-based optical filters exhibiting textural porosity, and evaporation-induced self-assembled mesoporous Bragg stacks exhibiting predominantly structural porosity, as well as hybrid structures
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6

Dailly, Julian, Daniel Schmider, Philipp Blanck, Mathieu Marrony, and Olaf Deutschmann. "Protonic Ceramic Membranes: Up-Scaling and Application to E-Fuels Synthesis." ECS Meeting Abstracts MA2024-02, no. 48 (2024): 3474. https://doi.org/10.1149/ma2024-02483474mtgabs.

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Abstract The production of synthetic fuels / chemicals relies on the availability of the reactants: low-carbon H2, CO2 valorization from various CO2 sources, N2. In addition, the value chains are not enough mature to be considered as commercial and still need improvement. The main levers are high production costs of conversion processes, access to biologic or fatal CO2 sources and issues related to the H2 supply chain (H2 cost, heat recovery, etc.). The main streams for improving current e-fuels conversion technologies being explored by industry are focused on new catalyst materials and new re
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7

Franz, Gérald, Pascal Vantomme, and Muhammad Hafiz Hassan. "A Review on Drilling of Multilayer Fiber-Reinforced Polymer Composites and Aluminum Stacks: Optimization of Strategies for Improving the Drilling Performance of Aerospace Assemblies." Fibers 10, no. 9 (2022): 78. http://dx.doi.org/10.3390/fib10090078.

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In recent years, the use of hybrid composite stacks, particularly CFRP/Al assemblies, and fiber metal laminates (FMLs) has progressively become a convincing alternative to fiber-reinforced polymers (FRPs) and conventional metal alloys to meet the requirements of structural weight reduction in the modern aerospace industry. These new structural materials, which combine greater mechanical properties with low specific mass, are commonly assembled by riveted and bolted joints. The drilling operation, which represents the essential hole-making process used in the aerospace industry, proves particul
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8

Ray, Chase A., and Steven R. Anton. "Multilayer piezoelectret foam stack for vibration energy harvesting." Journal of Intelligent Material Systems and Structures 28, no. 3 (2016): 408–20. http://dx.doi.org/10.1177/1045389x16657420.

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Electronic devices are high-demand commodities in today’s world, and such devices will continue increasing in popularity. Currently, batteries are implemented to provide power to these devices; however, the need for battery replacement, their cost, and the waste associated with battery disposal present a need for advances in self-powered technology. Energy harvesting technology has great potential to alleviate the drawbacks of batteries. In this work, a novel piezoelectret foam material is investigated for low-level vibration energy harvesting. Specifically, piezoelectret foam assembled in a m
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9

Bertocci, Francesco, Andrea Grandoni, and Tatjana Djuric-Rissner. "Scanning Acoustic Microscopy (SAM): A Robust Method for Defect Detection during the Manufacturing Process of Ultrasound Probes for Medical Imaging." Sensors 19, no. 22 (2019): 4868. http://dx.doi.org/10.3390/s19224868.

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The main aim of this paper is to provide the feasibility of non-destructive testing (NDT) method, such as scanning acoustic microscopy (SAM), for damage detection in ultrasound (US) probes for medical imaging during the manufacturing process. In a highly competitive and demanding electronics and biomedical market, reliable non-destructive methods for quality control and failure analysis of electronic components within multi-layered structures are strongly required. Any robust non-destructive method should be capable of dealing with the complexity of miniaturized assemblies, such as the acousti
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10

Cho, Jinhan, and Frank Caruso. "Polymeric Multilayer Films Comprising Deconstructible Hydrogen-Bonded Stacks Confined between Electrostatically Assembled Layers." Macromolecules 36, no. 8 (2003): 2845–51. http://dx.doi.org/10.1021/ma021049n.

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11

Boiko, O., O. Komarov, R. Vasyuta, V. Nazarenko, Yu Slominskiy, and T. Schneider. "Nano-Architecture of Self-Assembled Monolayer and Multilayer Stacks of Lyotropic Chromonic Liquid Crystalline Dyes." Molecular Crystals and Liquid Crystals 434, no. 1 (2005): 305/[633]—314/[642]. http://dx.doi.org/10.1080/15421400590955019.

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12

Friedlein, Rainer, Ying Wang, Antoine Fleurence, Fabio Bussolotti, Yoichi Ogata, and Yukiko Yamada-Takamura. "Stacks of Nucleic Acids as Molecular Wires: Direct Measurement of the Intermolecular Band Dispersion in Multilayer Guanine Assemblies." Journal of the American Chemical Society 132, no. 37 (2010): 12808–10. http://dx.doi.org/10.1021/ja104839d.

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13

Mshar, Alecsander D., Allen G. Owen, Daniel D. Arnold, Pieter B. Visscher, Randy K. Dumas, and Subhadra Gupta. "FORC analysis of nanopatterned vs unpatterned films: Coercivity and switching mechanisms." AIP Advances 12, no. 3 (2022): 035230. http://dx.doi.org/10.1063/9.0000336.

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We have studied the use of self-assembled block copolymers to pattern multilayers of Co and Pd on silicon wafers. Stacks ranging from four to twelve bilayers of Co (0.3 nm)/Pd (0.8 nm) were sputtered onto Ta/Pd seed layers and capped with 3 nm of Ta and were found to have perpendicular magnetic anisotropy as-deposited. The block copolymer polystyrene- block-poly(ferrocenyl dimethylsilane) (PS-b-PFS) was dissolved in toluene and spun onto the wafers. The polymers were phase-separated by heat treatment, leaving self-assembled PFS spheres embedded in PS, which was removed by oxygen-plasma ashing.
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14

Srinivasan, Charan, Mary E. Anderson, R. Jayaraman, Paul S. Weiss, and Mark W. Horn. "Electrically isolated nanostructures fabricated using self-assembled multilayers and a novel negative-tone bi-layer resist stack." Microelectronic Engineering 83, no. 4-9 (2006): 1517–20. http://dx.doi.org/10.1016/j.mee.2006.01.265.

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15

Barillaro, Giuseppe. "Ultrathin Ambipolar Polyelectrolyte Capacitors Prepared via Layer-By-Layer Assembling for High Frequency Applications." ECS Meeting Abstracts MA2025-01, no. 1 (2025): 98. https://doi.org/10.1149/ma2025-01198mtgabs.

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Polyelectrolyte capacitors (PECs) have gained attention for their high areal capacitance, reaching up to 200 nF/mm², achieved via single-layer polyelectrolytes. However, their application in industrial and consumer electronics has been hindered by operational frequency limitations and resistive behavior in the kHz-to-MHz range. In this study, we present a novel multilayer polyelectrolyte capacitor (mPEC) design fabricated via layer-by-layer (LbL) assembly of ultrathin (down to 1 nm) anionic and cationic polyelectrolyte stacks. This architecture eliminates the resistive behavior observed in tra
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16

Schneider, Tod, and O. D. Lavrentovich. "Self-Assembled Monolayers and Multilayered Stacks of Lyotropic Chromonic Liquid Crystalline Dyes with In-Plane Orientational Order." Langmuir 16, no. 12 (2000): 5227–30. http://dx.doi.org/10.1021/la000081c.

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17

Wen, Wei-Chen, Markus Andreas Schubert, Marvin Hartwig Zöllner, Bernd Tillack, and Yuji Yamamoto. "3-Dimensional Self-Ordered Multilayered Ge Nanodots on SiGe." ECS Meeting Abstracts MA2022-02, no. 32 (2022): 1235. http://dx.doi.org/10.1149/ma2022-02321235mtgabs.

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Multilayered Ge nanodots have drawn much attention due to their potential applications in optoelectronics, such as photodetectors and lasers. Many groups studied multilayered Ge nanodots with Si spacers on Si(001) grown by Stranski-Krastanov (SK) growth mode and vertically aligned by local tensile strain induced by buried Ge nanodots (1-2). However, to avoid plastic relaxation caused by a 4.2% lattice mismatch between Si and Ge, thick nanodots and/or large layer numbers are challenging. Additionally, laterally-aligned Ge nanodots without pre-structuring have not been reported. In this study, w
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18

Podias, Andreas, Akos Kriston, and Andreas Pfrang. "(Digital Presentation) Thermal Runaway Initiation, Propagation and the Potential for Propagation Inhibition in Commercial Automotive Lithium-Ion Cells and Modules." ECS Meeting Abstracts MA2022-01, no. 6 (2022): 2485. http://dx.doi.org/10.1149/ma2022-0162485mtgabs.

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Lithium-ion batteries, containing flammable electrolytes, have become safer in many ways since their invention. As the technology matures, energy and power densities increase: the European Council for Automotive R&D set 2030 (cell level) targets for battery electric vehicle energy density of 1000 Wh L-1, with 450 Wh kg-1 specific energy and 1800 W kg-1 peak specific power. This rise in energy and power densities increases the risk of accidental release of energy from the batteries and thermal runaway (TR). Safety is thus a key concern when designing a lithium-ion battery system for electri
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19

Chen, Li, Gang Wu, Yin Huang, Changning Bai, Yuanlie Yu, and Junyan Zhang. "High Loading Capacity and Wear Resistance of Graphene Oxide/Organic Molecule Assembled Multilayer Film." Frontiers in Chemistry 9 (November 29, 2021). http://dx.doi.org/10.3389/fchem.2021.740140.

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Taking advantage of the strong charge interactions between negatively charged graphene oxide (GO) sheets and positively charged poly(diallyldimethylammonium chloride) (PDDA), self-assembled multilayer films of (GO/PDDA)n were created on hydroxylated silicon substrates by alternating electrostatic adsorption of GO and PDDA. The formation and structure of the films were analyzed by means of water contact angle measurement, thickness measurement, atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). Meanwhile, tribological behaviors in micro- and macro- scale were investigated
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20

He, Linling, Anshul Chaudhary, Xiaohe Lin, et al. "Single-component multilayered self-assembling nanoparticles presenting rationally designed glycoprotein trimers as Ebola virus vaccines." Nature Communications 12, no. 1 (2021). http://dx.doi.org/10.1038/s41467-021-22867-w.

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AbstractEbola virus (EBOV) glycoprotein (GP) can be recognized by neutralizing antibodies (NAbs) and is the main target for vaccine design. Here, we first investigate the contribution of the stalk and heptad repeat 1-C (HR1C) regions to GP metastability. Specific stalk and HR1C modifications in a mucin-deleted form (GPΔmuc) increase trimer yield, whereas alterations of HR1C exert a more complex effect on thermostability. Crystal structures are determined to validate two rationally designed GPΔmuc trimers in their unliganded state. We then display a modified GPΔmuc trimer on reengineered protei
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21

Paghi, Alessandro, Stefano Mariani, Martina Corsi, et al. "Ultrathin Ambipolar Polyelectrolyte Capacitors Prepared via Layer‐By‐Layer Assembling." Advanced Materials, January 24, 2024. http://dx.doi.org/10.1002/adma.202309365.

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AbstractMiniaturized solid state capacitors leveraging migration of unipolar ions in a single polyelectrolyte layer sandwiched between metal electrodes, namely, polyelectrolyte capacitors (PECs), have been recently reported with areal capacitance up to 100–200 nF mm−2. Nonetheless, application of PECs in consumer and industrial electronics has been hindered so far by their small operational frequency range, up to a few kHz, due to the resistive behavior (phase angle >‐45°) of PECs in the range kHz‐to‐MHz.Here we report on multilayer polyelectrolyte capacitors (mPECs) that leverage as dielec
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22

Lange, Stefan, Carl Eric Hartwig, Oussama Er-Raji, Patricia S. C. Schulze, Marko Turek, and Juliane Borchert. "Characterization of Ultrathin Layers in Perovskite/TOPCon Tandem Cells With Photoelectron Spectroscopy Utilizing Advanced Data Evaluation Methods." SiliconPV Conference Proceedings 2 (December 6, 2024). https://doi.org/10.52825/siliconpv.v2i.1325.

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Next generation solar cells like tunnel oxide passivated contacts (TOPCon) or perovskite/TOPCon tandem solar cells require efficient interface passivation by ultrathin organic or inorganic layers to uncover their true efficiency potential. Especially the microstructure and the Si suboxide content of the tunnel oxide in poly-Si(Ox)/SiO2/c-Si TOPCon stacks have been shown to have a tremendous influence on macroscopic device properties. Similarly, perovskite/ITO interface modification by a self-assembled monolayer (SAM) molecule is necessary to achieve high power conversion efficiencies of the pe
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23

Martínez, B. A. Muñiz, Mario Flores Salazar, M. G. Syamala Rao, Andrés de Luna Bugallo, and R. Ramirez-Bon. "Effect of Thickness and Thermal Treatment on the Electrical Performance of 2D MoS2 Monolayer and Multilayer Field-Effect Transistors." Journal of Electronic Materials, January 25, 2024. http://dx.doi.org/10.1007/s11664-023-10913-w.

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AbstractWe deposited high-quality molybdenum disulfide (MoS2) monolayer and multilayer crystals on SiO2/Si substrates, by means of a chemical vapor deposition (CVD) process at atmospheric pressure. Notably, NaCl salt was used as component of the precursors to assist the growth of MoS2 crystals, which were intended for use as the active channel layer in the fabrication of field-effect transistors (FETs). The resulting MoS2 crystals from this CVD process were analyzed by optical, scanning electron, and atomic force microscopies, and by Raman and photoluminescence spectroscopies. The optical imag
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24

J. Yang and M. V. Reddy. "Optical studies of InAs/GaAs quantum dot stacks for photovoltaic applications." Experimental and Theoretical NANOTECHNOLOGY, May 15, 2021, 137–45. http://dx.doi.org/10.56053/5.2.137.

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We have investigated the effect of post growth rapid thermal annealing on self-assembled InAs/GaAs mul tilayer QDs (MQD) overgrown with a combination barrier of InAlGaAs and GaAs for their possible use in photovoltaic device application. The samples were characterized by transmission electron microscopy and photoluminescence measurements. We noticed a thermally induced material interdiffusion between the QDs and the wetting layer in the MQD sample up to a certain annealing temperature. The QD heterostructure exhibited a thermal stability in the emission peak wavelength on annealing up to 700 ◦
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"Optical studies of InAs/GaAs quantum dot stacks for photovoltaic applications." Experimental and Theoretical NANOTECHNOLOGY 5, no. 2 (2021): 23–32. http://dx.doi.org/10.56053/5.2.23.

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We have investigated the effect of post growth rapid thermal annealing on self-assembled InAs/GaAs mul tilayer QDs (MQD) overgrown with a combination barrier of InAlGaAs and GaAs for their possible use in photovoltaic device application. The samples were characterized by transmission electron microscopy and photoluminescence measurements. We noticed a thermally induced material interdiffusion between the QDs and the wetting layer in the MQD sample up to a certain annealing temperature. The QD heterostructure exhibited a thermal stability in the emission peak wavelength on annealing up to 700 ◦
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26

Li, Shipeng, Xuda Qin, Yan Jin, Dan Sun, and Yonghang Li. "A comparative study of hole making performance by coated and uncoated WC/Co cutters in helical milling of Ti/CFRP stacks." June 13, 2019. https://doi.org/10.5281/zenodo.3245368.

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Carbon fiber reinforced plastic (CFRP) and titanium alloy stacks are typical difficult-to-machine materials and often results in rapid tool wear, leading to a low drilling efficiency in aircraft assembling. Helical milling process has demonstrated its superior performance in making holes in these materials, but selecting a proper cutting tool is still a great challenge and little research has been carried out to investigate the effect of different coatings on tools  performance. Therefore, in this paper, milling tools  
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27

Da, H. X., Qi Song, Pengya Hu, and Huapeng Ye. "Enhanced Photonic Spin Hall effect in Dirac Semimetal Metamaterial Enabled by Zero Effective Permittivity." Nanotechnology, December 2, 2022. http://dx.doi.org/10.1088/1361-6528/aca80e.

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Abstract With the recent discovery of three dimensional Dirac semimetals, their integrations with the optoelectronic devices allow the novel optical effects and functionalities. Here, we theoretically report the photonic spin Hall effect in a periodic structure, where three dimensional Dirac semimetals and the dielectric materials are assembled into the stack. The incident angle and frequency dependent spin shift spectrum reveals that the spin shifts of the transmitted wave in this structure emerge the obvious peaks and valleys for the horizontal polarized wave and their magnitudes and positio
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28

Jung, Heesuk, Sung Yoon Min, Byungsoo Kang, et al. "Efficient and Scalable Radiative Cooling for Photovoltaics Using Solution‐Processable and Solar‐Transparent Mesoporous Nanoparticles." Advanced Functional Materials, October 21, 2024. http://dx.doi.org/10.1002/adfm.202410478.

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AbstractContinuous heat generation in perovskite solar cells (PSCs), caused by solar radiation, poses a significant challenge to their lifespan. Existing active cooling methods require extra energy input and might not be effective at high temperatures. Most reported passive radiative cooling materials either lack solar transparency or require complex fabrication processes. Here, mesoporous silica nanoparticles are designed, synthesized, and assembled into multilayered stacks with a graded refractive index (GRI) by spray coating them on top of PSCs made from methylammonium lead iodide (MAPbI3)
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