Results 161 to 170 of about 40,582 (335)

Additive‐Driven Phase Control for Stable and Efficient CsPbI₃ Solar Cells Via Ambient Low‐Temperature Processing

open access: yesAdvanced Functional Materials, EarlyView.
CsPbI₃ perovskite solar cells face stability issues due to high annealing temperatures and moisture. Butylammonium acetate (BAAc) enables stable phase formation at 160°C in ambient laboratory conditions, enhancing efficiency and stability, achieving 18.6% PCE, and maintaining over 81% efficiency after 1,000 hours of maximum power point tracking under 1
Narendra Pai   +10 more
wiley   +1 more source

Tratamiento mecanoquímico de la ferrita MgFe2O4

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2000
Powder of MgFe2O4, previously prepared by solid state reaction, was mechanochemically treated in a centrifugal ball mill in air atmosphere. Different milling conditions has been employed varying ball/powder mass ratio.
Torralba, J. M.   +3 more
doaj  

Enhancing Mechanical Deformability of Rigid Conjugated Polymers through Functional Additive‐Induced Persistence Length Modulation

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates a molecular strategy to enhance the stretchability of conjugated polymers by incorporating plasticizing molecular additives (PMAs). PMAs reduce the persistence length and promote chain entanglement, enabling deformable thin films with preserved electrical performance. A systematic analysis combining rheology, neutron scattering,
Sein Chung   +11 more
wiley   +1 more source

Síntese, caracterização e comportamento térmico de amidossulfonatos de terras raras Synthesis, characterization and thermal behavior of rare earth amidosulfonates

open access: yesQuímica Nova, 2013
Hydrated compounds prepared in aqueous solution by reaction between amidosulfonic acid [H3NSO3] and suspensions of rare earth hydroxycarbonates [Ln2(OH)x(CO3)y.zH2O] were characterized by elemental analysis (% Ln, % N and % H), infrared spectroscopy ...
José Marques Luiz   +2 more
doaj  

Thermodynamic Measurements Using the Knudsen Cell Technique [PDF]

open access: yes
The Knudsen cell technique has been used for over a century and is a valuable tool for measurement of vapor pressures and thermodynamic properties. It is based on a small enclosure (~1 cm long x 1 cm diameter) in which a condensed phase/vapor equilibria ...
Jacobson, Nathan S.   +1 more
core   +1 more source

Enhancing the Photocatalytic Performance of Carbon Nitrides Through Controlled Local Structure Modification

open access: yesAdvanced Functional Materials, EarlyView.
This work utilizes poly(heptazine imides) as a model system to demonstrate how fine‐tuning the crystal structure influences the photocatalytic properties of layered carbon nitrides in the hydrogen evolution reaction. In particular, the nature of rotational defects and the hydration shell of cations are key contributors to enhanced hydrogen evolution ...
Diana V. Piankova   +11 more
wiley   +1 more source

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