Results 61 to 70 of about 12,124 (246)

Green-Solvent Engineering for Depositing Qualified Phenyl-C61-butyl Acid Methyl Ester Films for Inverted Flexible Perovskite Solar Cells

open access: yes
Flexible perovskite solar cells (fPSCs) with the inverted structure (p-i-n structure) show a promising commercialization future, owing to their lightweight and high efficiencies.
Xin Li (51274)   +3 more
core   +1 more source

Chloride–bromide co‐engineering enables operationally stable quasi‐2D tin perovskite solar cells under ambient conditions

open access: yesInfoScience, EarlyView.
Mixed halide perovskite systems consisting of iodide and bromide ions often suffer phase segregation. The segregation introduces instability, which can manifest in faster degradation of devices under operation. Here, we introduced a controlled amount of chloride ions into tin perovskite (TP) film containing iodide and bromide ions; the chloride ions ...
Jorim O. Obila   +4 more
wiley   +1 more source

Quasi‐2D perovskite memristors: From layered structures to advanced computing applications

open access: yesInfoScience, EarlyView.
Quasi‐2D perovskites enable stable memristive switching through dimensional engineering that controls ion migration pathways. The layered structure suppresses leakage, improves environmental stability, and enables analog conductance modulation for neuromorphic computing, artificial vision, and in‐memory architectures, transforming ion migration from a ...
Jie Ma, Yujian Du, Yuljae Cho
wiley   +1 more source

Thickness dependence and solution-degradation effect in poly(3-hexylthiophene):phenyl-C61-butyric acid methyl ester based solar cells

open access: yes, 2010
The performance of bulk-heterojunction solar cells made with poly(3-hexylthiophene) (P3HT) as the donor and phenyl-C61-butyric acid methyl ester (PCBM) as the acceptor depends strongly on various factors in fabrication processes.
Kopola, Pälvi   +11 more
core   +1 more source

Downside Risk Measures and ESG Factors in Optimal Portfolio Construction: Evidence from European Equity Markets

open access: yesECONOMICS
In this paper, we implement an integrated framework for constructing ESG-constrained, downside-risk-optimized equity portfolios in the European stock market.
Quimbayo Carlos Andrés Zapata   +1 more
doaj   +1 more source

Optical Stimulation and Monitoring of the Peripheral Nervous System: Perspectives and Challenges Toward Clinical Translation

open access: yesLaser &Photonics Reviews, EarlyView.
Optical neuromodulation with IR light allows stimulation of the PNS without the need for physical contact with the target nerve or without requiring any genetic modification. The clinical translation of this technique will pave the way to the development of neural interfaces for restoring sensory feedback in individuals with limb amputation.
Federica Piccirillo   +20 more
wiley   +1 more source

The Use of Simulation Modeling in Optimizing Warehouse Inventory Distribution

open access: yesStudia Ekonomiczne i Regionalne
The article examines the use of simulation modelling as an effective research method supporting decision-making in logistics process management. The study focuses on a branch of an international logistics company in Poland facing inefficient inventory ...
Wiśniewski Zbigniew   +1 more
doaj   +1 more source

Electrospun conducting polymers: recent trends and the transition towards a sustainable future

open access: yesPolymer International, EarlyView.
This review discusses the electrospinning of conducting polymers, detailing procedures, fibrous morphologies, improved properties, applications in electronics, and challenges, while outlining future directions for nanofibre‐based devices in various fields.
Xenofon Karagiorgis   +3 more
wiley   +1 more source

Continuous-time mean-variance portfolio optimization in a jump-diffusion market

open access: yes, 2010
Mean-variance approach, Jump-diffusions, Portfolio optimization, C61, G11,
Özge Alp   +4 more
core   +1 more source

Simplification Opportunities in Some Western European Personal Income Tax System

open access: yesStudia Universitatis Vasile Goldis Arad, Seria Stiinte Economice
This paper builds on earlier analyses of international examples to further explore the limitations of simplification opportunities in personal income tax systems.
Bonifert Éva Szabóné
doaj   +1 more source

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