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Enhance Photo-Stability of Up-Scalable Organic Solar Cells: Suppressing Radical Generation in Polymer Donors.
Adv Mater
December 2024
School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, 250100, China.
The power conversion efficiency (PCE) of single-junction organic solar cells (OSCs) has been promoted above 20%. Device up-scaling draws more and more research attentions. Besides the high PCE for devices with up-scalable fabrication methods and conditions, achieving high stability simultaneously is essential for pushing industrialization of this technology.
View Article and Find Full Text PDFSpectroscopic Signatures of Ultra-Thin Amorphous Carbon with the Tuned Disorder Directly Grown on a Dielectric Substrate.
Adv Mater
December 2024
School of Mechanical Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
The reduced structural complexity of atomically thin amorphous carbons makes it suitable for semiconductor technology. Inherent challenges arise from transfer processes subsequent to growth on metallic substrates, posing significant challenges to the accurate characterization of amorphous materials, thereby compromising the reliability of spectroscopic analysis. Here this work presents a novel approach: direct growth of ultra-thin amorphous carbon with tuned disorder on a dielectric substrate (SiO/Si) using photochemical reaction and thermal annealing process with a solid precursor.
View Article and Find Full Text PDFDevelopment of essential oils inclusion complexes: a nanotechnology approach with enhanced thermal and light stability.
Discov Nano
December 2024
Brazilian Agricultural Research Corporation, Embrapa Instrumentation, São Carlos, SP, 13561-206, Brazil.
Essential oils (EOs) are volatile compounds that may have antimicrobial and antioxidant properties. Despite their potential application, low water solubility and chemical instability are limiting factors. Nanoencapsulation processes can overcome this problem, protecting against external factors and promoting a moderate release.
View Article and Find Full Text PDFPhotothermal Laser Printing of Sub-Micrometer Crystalline ZnO Structures.
Adv Sci (Weinh)
December 2024
Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), 76131, Karlsruhe, Germany.
Article Synopsis
- The text discusses advancements in light-driven 3D additive manufacturing, focusing on the photothermal laser-printing of sub-micrometer ZnO structures for microelectronics.
- It highlights three key improvements: using single-crystalline ZnO for better structure, utilizing dimethyl sulfoxide (DMSO) to achieve higher temperatures, and employing specialized substrates for improved light to heat conversion.
- The process is noted for its efficiency since it requires no post-processing and can be conducted without a cleanroom environment, simplifying the fabrication of crystalline semiconductors.
Light driven photoswitches: three classes of molecular systems that result in a single photoproduct a conical intersection and an exothermic reverse reaction.
Phys Chem Chem Phys
December 2024
Department of Chemical Sciences, Materials Research Center, Ariel University, 4076414 Ariel, Israel.
A common feature of molecular photoswitches is the selectivity of their photo-processes. The photoswitching model must combine a selective photochemical direct route and a thermal reverse reaction from the product back to the parent reactant. The conical intersection model is an appropriate approach to this problem.
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