Results 221 to 230 of about 469,354 (254)

Functionalization of Droplet Etching for Quantum Rings

, 2018
We give an overview on various types of strain-free semiconductor quantum ring (QR) structures created in a self-assembled fashion with the local droplet etching (LDE) method. LDE is fully compatible with conventional molecular beam epitaxy (MBE) and utilizes liquid Ga or Al droplets which drill nanoholes into semiconductor surfaces.
C. Heyn, M. Zocher, W. Hansen
semanticscholar   +2 more sources

Fabrication of ultralow-density quantum dots by droplet etching epitaxy [PDF]

Journal of Materials Research, 2017
Abstract
Jiang Wu, Zhiming M. Wang, Xinlei Li, Y. Mazur, G. Salamo   +4 more
semanticscholar   +3 more sources

Kinetic model of local droplet etching

Physical Review B, 2011
The self-organized in situ drilling of nanoholes into semiconductor surfaces by using liquid metallic droplets during conventional molecular beam epitaxy represents a new degree of freedom for the design of heterostructure devices. A model of this local droplet etching is presented that is based on a core-shell droplet structure.
C. Heyn
semanticscholar   +2 more sources

Molecular‐level etching by electrospray droplet impact

Surface and Interface Analysis, 2008
Abstract A novel ionization method, electrospray droplet impact (EDI), has been developed for matrix‐free SIMS. The charged water droplets used in EDI are extremely large cluster ions with masses of about a few 10 6 u.
Kenzo Hiraoka
exaly   +2 more sources

Mechanism and applications of local droplet etching

Journal of Crystal Growth, 2011
We give an overview on the fabrication and applications of deep nanoholes in semiconductor surfaces generated by self-assembled drilling with liquid metal droplets as etchant. The method is fully compatible with conventional molecular beam epitaxy equipment.
C. Heyn, A. Stemmann, M. Klingbeil, C. Strelow, T. Köppen, S. Mendach, W. Hansen   +6 more
semanticscholar   +2 more sources

Dynamics of self-assembled droplet etching

Applied Physics Letters, 2009
We study the self-assembled local droplet etching of nanoholes in AlGaAs surfaces with Ga droplets. The data establish an unexpected delay of both the hole drilling process as well as the removal of the liquid material after etching. Furthermore, coarsening by Ostwald ripening is found to reduce the droplet density before drilling.
C. Heyn, A. Stemmann, W. Hansen
semanticscholar   +2 more sources

GaAs nanopillars by self-assembled droplet etching

Journal of Crystal Growth, 2013
Abstract GaAs nanopillars are fabricated using a combination of in situ self-organized local droplet etching of nanoholes in a semiconductor surface, nanohole filling with a different material, and ex situ material selective etching. The structural properties of the pillars are studied with atomic-force microscopy.
C. Heyn, D. Sonnenberg, Thorben Bartsch, Alina Wetzel, J. Kerbst, W. Hansen   +5 more
semanticscholar   +2 more sources

Adhesion behavior of different droplet on superhydrophobic surface of cotton fabric based on oxygen plasma etching

Journal of the Textile Institute, 2022
Oxygen plasma etching followed with spraying of hydrophobic suspension containing SiO2 nanoparticles were used to construct superhydrophobic cotton fabric, and the adhesion behavior of the superhydrophobic surface to deionized water, dye liquor, sterile ...
Wei Zhang, J. Yao, Xudong Liu, R. Yan, Jianlin Xu   +4 more
semanticscholar   +1 more source

Droplet etching during semiconductor epitaxy for single and coupled quantum structures

Quantum Dots and Nanostructures: Growth, Characterization, and Modeling XV, 2018
We give an overview on the present status of self-assembled quantum structure fabrication by using the local droplet etching (LDE) technique during semiconductor molecular-beam epitaxy (MBE). LDE functionalizes nanodroplets to drill spatially well separated nanoholes into semiconductor surfaces.
C. Heyn, M. Zocher, A. Küster, W. Hansen   +3 more
semanticscholar   +2 more sources

Origin of nanohole formation by etching based on droplet epitaxy

Nanoscale, 2014
Creating and manipulating materials at the nanoscale with controllable size, shape and nucleation site is an important task to meet the urgent demands for quantum structures with designed properties. In the last ten years, droplet epitaxy has been emerging as a versatile fabrication method for various complex nanostructures, such as quantum dots ...
Xinlei, Li, Jiang, Wu, Zhiming M, Wang, Baolai, Liang, Jihoon, Lee, Eun-Soo, Kim, Gregory J, Salamo   +6 more
openaire   +2 more sources