Results 291 to 300 of about 5,256,570 (379)

Overcoming Material Incompatibility via 2D Free‐Surface Engineering

open access: yesAdvanced Materials, EarlyView.
A scalable post‐epitaxial strategy introduces a sub‐nanometric 2D free surface (2DFS) at the heterointerface, effectively decoupling lattice‐mismatched layers. This process significantly reduces strain‐driven defects and dislocation density in Ge/Si heterostructures. The resulting bulk‐like material quality, validated by advanced microscopy and optical
Youcef A. Bioud   +9 more
wiley   +1 more source

Synthetic Chromatophores for Color and Pattern Morphing Skins

open access: yesAdvanced Materials, EarlyView.
Cephalopods use chromatophore organs (muscle‐actuated pigment sacs) to alter their skin color and pattern. Synthetic chromatophores, which closely mimic the mechano‐optical process found in cephalopods using stimuli‐responsive microscale hydrogel actuators, are reported.
Brennan P. Watts   +5 more
wiley   +1 more source

Spiro‐Phenothiazine Hole‐Transporting Materials: Unlocking Stability and Scalability in Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
Fluorene‐functionalized spiro‐phenothiazine (PTZ‐Fl) exhibits strong Li+ affinity and thermal stability, enabling a PCE of 25.75% in small‐area cells and 22.07% in 25 cm2 modules. Under ISOS‐L3 conditions, PTZ‐Flbased devices retain over 80% efficiency after 1000 hours, demonstrating superior stability and scalability compared to spiro‐OMeTAD for next ...
Javier Urieta‐Mora   +17 more
wiley   +1 more source

Practical Considerations in the Design and Use of Non‐Crystalline Metal–Organic Frameworks

open access: yesAdvanced Materials, EarlyView.
This review explores the emerging field of non‐crystalline MOFs ‐ amorphous, liquid, and glassy forms ‐ highlighting how they differ from traditional crystalline MOFs. It discusses their unique synthesis strategies, fundamental principles, and diverse applications.
Hamidreza Mahdavi   +8 more
wiley   +1 more source

Guiding, bending, and splitting of electromagnetic waves in highly confined photonic crystal waveguides

open access: green, 2001
Mehmet Bayındır   +6 more
openalex   +2 more sources

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