Results 61 to 70 of about 52,738 (284)

Eco‐Friendly Solvent System for Inkjet Deposition of Wide Bandgap Perovskite Solar Cells Enabling Tandem Integration

open access: yesAdvanced Science, EarlyView.
The fabrication of wide‐bandgap perovskite thin films via green solvents integrated with inkjet printing is developed. Controlled crystallization of the perovskite layer is achieved by optimizing ink formulation and additive engineering, enabling power conversion efficiencies above 17% for single junctions and 28% for perovskite/silicon tandem solar ...
Uma Kousalya Dangudubiyyam   +12 more
wiley   +1 more source

Effect of PCE anionic charge density on fly ash cementitious system-PCE compatibility

open access: yesJournal of Adhesion Science and Technology
In this study, the compatibility of polycarboxylate-based water-reducing admixtures (PCEs) with cementitious systems containing fly ash (FA) was investigated. For this purpose, PCEs with carboxylate, phosphate, and sulfonate anionic groups having different anionic charge densities were synthesized.
Kemal Karakuzu   +4 more
openaire   +3 more sources

Theretofore Highest Efficiency in Vacuum‐Deposited Organic Solar Cells Originating From Triarylamine‐Based Small‐Molecule Donors Containing Fused Heterocycle Units

open access: yesAdvanced Science, EarlyView.
Fused‐ring engineering unlocks record efficiency in vacuum‐deposited organic solar cells. By replacing linear π‐bridges with fused‐ring analogues in triarylamine‐based donors, we achieve enhanced molecular planarity, red‐shift optical absorption, minimize energy loss and optimized phase separation.
Yun‐Fei Li   +13 more
wiley   +1 more source

In‐Situ Constructed Cations for 2D/3D Perovskite Heterostructure for Stable and Efficient Photovoltaics

open access: yesAdvanced Science, EarlyView.
An in‐situ spacer‐cation construction strategy is developed by inducing strong hydrogen bonding between n‐hexyl phosphonic acid (HPA) and FA+, forming a stable N‐type 2D/3D perovskite heterostructure. This approach suppressed defect formation, promoted electron transport, and improved intrinsic stability, delivering 26.32% PCE, excellent operational ...
Min Liu   +10 more
wiley   +1 more source

PCE and CPI inflation differentials: converting inflation forecasts [PDF]

open access: yes
The Federal Reserve recently announced it will begin to release quarterly inflation forecasts based on the Personal Consumption Expenditure Price Index.
Craig S. Hakkio
core  

Polydopamine Nanoparticle‐Mediated Precise Near‐Infrared Optical Stimulation for Cognitive Enhancement

open access: yesAdvanced Science, EarlyView.
Polydopamine nanoparticles enable a precise, non‐genetic, and transcranial neuromodulation strategy via near‐infrared photothermal stimulation. By activating TRPV1 channels, this approach specifically enhances hippocampal gamma oscillations, thereby rescuing spatial memory deficits in models of perioperative neurocognitive disorder.
Yan‐Bo Zhou   +10 more
wiley   +1 more source

Robust resilience and substantial interest: a survey of pharmacological cognitive enhancement among university students in the UK and Ireland.

open access: yesPLoS ONE, 2014
Use of 'smart drugs' among UK students is described in frequent media reports as a rapidly increasing phenomenon. This article reports findings from the first large-scale survey of pharmacological cognitive enhancement (PCE) among students in the UK and ...
Ilina Singh, Imre Bard, Jonathan Jackson
doaj   +1 more source

Fiesta PCE'88 : Apuesta por la izquierda

open access: yes, 2009
Representació de caràcter festiu amb un nen amb una bandera comunista i dues cares ...
Fiesta PCE (1988 : Madrid)
core  

The effect of polycarboxylate superplasticizer on the strength and hydration performance of alkali slag building materials

open access: yesDesigned Monomers and Polymers
To explore the effect of polycarboxylate superplasticizers on the strength and hydration performance of alkali slag building materials, this study prepared cross-linked polycarboxylate superplasticizers with different ratios of hydrogen peroxide, methyl ...
Guide Liu   +3 more
doaj   +1 more source

Performance Analysis of a n-i-p and p-i-n Structured Lead-Free Cs2TiI6 -Based Perovskite Solar Cell

open access: yesЖурнал нано- та електронної фізики
This research work shows the development of an n-i-p structured FTO/TiO2/Cs2TiI6/Spiro-OMeTAD/Au and a p-i-n structured FTO/PEDOT:PSS/Cs2TiI6/PCBM/Al-based PSC photovoltaic model.
K. Chakraborty   +5 more
doaj   +1 more source

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