Results 251 to 260 of about 59,843 (326)

Surface Properties of p‐GaN and Formation of Nickel Metal Contacts

open access: yesAdvanced Materials Interfaces, EarlyView.
The amount of C, O, and Mg–O bonds on the surface of p‐GaN can be reduced while still maintaining the surface morphology by potassium hydroxide (KOH) wet chemical treatment. Heating this surface with Ni on top in ultra‐high vacuum (UHV) results in a crystalline Ga‐Ni alloy and diffusion of Ga, which creates vacancies close to valence band leading to ...
Mikko Miettinen   +12 more
wiley   +1 more source

Crystallization Dynamics of Hybrid Perovskite Mediated by a Biopolymer: From Precursor Solution to Thin Film

open access: yesAdvanced Materials Interfaces, EarlyView.
In order to better understand the complex crystallization dynamics of starch‐assisted metal halide perovskites (MHPs), the properties of colloidal precursor suspensions and the thermodynamic evolution of the crystallization reaction are investigated by a comprehensive set of characterization techniques, from solutions to films.
Antonella Giuri   +11 more
wiley   +1 more source

Electrochemically‐Assisted Low Power Density Laser Writing on Stainless Steel via Enrichment of Chromium Oxides

open access: yesAdvanced Materials Interfaces, EarlyView.
This research describes the invention of a new method to color the surface of stainless steel with brown to blue hues at micron resolution using a low‐power laser. This method is safer and lower cost than previous methods. The study determines that the main coloring compound is chromium oxide.
Zechariah J. Pfaffenberger   +4 more
wiley   +1 more source

Wearable Electrohydraulic Actuation For Salient Full‐Fingertip Haptic Feedback

open access: yesAdvanced Materials Technologies, EarlyView.
This study introduces a wearable soft robotic system that combines a flat and conformable electrohydraulic pump, a mechanically transparent channel, and an ultra‐thin fingertip chamber to provide salient haptic feedback that imitates natural touch experiences.
Yitian Shao   +4 more
wiley   +1 more source

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