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Abstract Luminescent solar concentrators (LSCs) were made by the infiltration of microfibrous thin films (µFTFs) of Parylene C by Lumogen F Red 305 (LFR305), in order to maximize the concentration of light made available to a photovoltaic solar cell (PVSC). The Parylene-CµFTFs with either tilted columnar or chevronic morphology were fabricated using physicochemical vapor deposition and infiltrated with LFR305 using thermal evaporation. Application of a voltage across a photoresistor illuminated by a solar simulator (AM1.5) through an LFR305-infiltrated Parylene-C LSC resulted in an enhancement of the ON-OFF minimum current ratio by a factor of $1.5\pm 0.29$compared to the ratio before LFR305 infiltration/deposition, regardless of morphology; furthermore, LFR305 infiltration enhanced the ON-OFF minimum current ratio by $56.5\pm 21.5$%, depending on the morphology. The LSC concentration factor was determined to be $8.7\pm 3.4$after integration with a monocrystalline-silicon solar cell, depending on the morphology. 

Multicomponent refractory alloys have the potential to operate in high-temperature environments. Alloys with heterogeneous/composite microstructure exhibit an optimal combination of high strength and ductility. The present work generates designed compositions using high-throughput computational and machine-learning (ML) models based on elements Mo-Nb-Ti-V-W-Zr manufactured utilizing vacuum arc melting. The experimentally observed phases were consistent with CALPHAD and Scheil simulations. ML models were used to predict the room temperature mechanical properties of the alloy and were validated with experimental mechanical data obtained from the three-point bending and compression tests. This work collectively showcases a data-driven, inverse design methodology that can effectively identify new promising multicomponent refractory alloys. 

A dual energy harvester based upon the magnetoelectric mechanism is reported. The harvester can generate ∼52.1 mW under simultaneously applied magnetic field and ultrasound in porcine tissue operating under safety limits. 

Abstract To fulfill the demands of more bandwidth in 5G and 6G communication technology, new dielectric substrates that can be co‐fired into packages and devices that have low dielectric loss and improved thermal conductivity are desired. The motivation for this study is to design composites with low dielectric loss (tan δ) and high thermal conductivity (κ), while still limiting the electrical conductivity, for microwave applications involving high power and high frequency. This work describes the fabrication of high‐density electroceramic composites with a model dielectric material for cold sintering, namely sodium molybdate (Na₂Mo₂O₇), and fillers with higher thermal conductivity such as hexagonal boron nitride. The physical properties of the composites were characterized as a function of filler vol.%, temperature, and frequency. Understanding the variation in measured properties is achieved through analyzing the respective transport mechanisms.