Local droplet etching of a vicinal InGaAs(111)A metamorphic layer
Applied Surface ScienceWe demonstrated nanopit formation by Ga-assisted local droplet etching technique in InGaAs metamorphic layers grown on vicinal GaAs(111)A substrates. We studied nanopit formation depending on the substrate temperature, Ga flux and Ga amount. The etched pits show a highly symmetrical pyramidal shape with an equilateral triangular base and the edges of ...
Sérgio Bietti +2 more
exaly +4 more sources
Fundamental role of arsenic flux in nanohole formation by Ga droplet etching on GaAs(001). [PDF]
Nanoscale Res Lett, 2014 Nanoholes with a depth in the range of tens of nanometers can be formed on GaAs(001) surfaces at a temperature of 500°C by local etching after Ga droplet formation.
Fuster D, González Y, González L.
europepmc +2 more sources
A Parametric Study of Droplet Directional Detachment on Inverted Wedge Patterns with Wettability Contrast [PDF]
MicromachinesConstructing inverted wedge-shaped hydrophilic channels with a small apex angle on surfaces with wettability patterns is an effective strategy to promote efficient and complete droplet detachment, which is crucial for applications such as condensation ...
Dalong Liang, Wenbin Cui
doaj +2 more sources
Luminescence from Droplet-Etched GaAs Quantum Dots at and Close to Room Temperature [PDF]
Nanomaterials, 2021 Epitaxially grown quantum dots (QDs) are established as quantum emitters for quantum information technology, but their operation under ambient conditions remains a challenge.
Leonardo Ranasinghe +5 more
doaj +3 more sources
Critical Aluminum Etch Material Amount for Local Droplet-Etched Nanohole-Based GaAs Quantum Dots
CrystalsLocal droplet-etched-based GaAs quantum dots are promising candidates for high-quality single and entangled photon sources. They have excellent optical and spin properties thanks to their size, shape and nearly strain-free matrix integration.
Timo Kruck +3 more
doaj +3 more sources
Tapered Optical Fiber Couplers Fabricated by Droplet-Based Chemical Etching
IEEE Photonics Journal, 2017 This paper presents a fabrication method for 2 × 2 twisted fiber-optic directional couplers based on biconical low-loss tapered optical fibers using a two-step wet-etching technique with hydrofluoric acid-based droplets and surface tension-driven ...
Gyeongho Son, Youngho Jung, Kyoungsik Yu
doaj +2 more sources
Fabrication of EP@PDMS@F-SiO2 Superhydrophobic Composite Coating on Titanium Alloy Substrate [PDF]
BiomimeticsIn this study, a preparation method of superhydrophobic composite coating based on a titanium alloy (Ti-6Al-4V) substrate is proposed. The micro-scale pit array structure was fabricated via laser etching technology.
Chaoming Huang +6 more
doaj +2 more sources
Nanohole etching in AlGaSb with Ga droplets [PDF]
Crystal Growth & Design, 2021 We demonstrate nanohole formation in AlGaSb by Ga droplet etching within a temperature range from 270°C to 500°C, allowing a wide range of tunability of the nanohole density. By leveraging the low vapor pressure of Sb, we can obtain high degree of control over droplet formation and nanohole etching steps and reveal the physics of adatom diffusion in ...
Hilska, Joonas +2 more
openaire +5 more sources
GaAs quantum dots grown by droplet etching epitaxy as quantum light sources [PDF]
Applied Physics Letters, 2021 This Perspective presents an overview on the epitaxial growth and optical properties of GaAs quantum dots obtained with the droplet etching method as high-quality sources of quantum light.
S. C. D. da Silva +8 more
semanticscholar +1 more source