Book ChapterDOI
Fabrication and optical spectroscopy of ultra small III–V compound semiconductor structures
Alfred Forchel,Helmut Leier,Bernd E. Maile,Roland Germann +3 more
- Vol. 28, pp 99-119
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TLDR
In this article, the fundamental technological processes for the fabrication of one and zero-dimensional III-V compound semiconductor structures which are developed for optical spectroscopy were discussed, using high-resolution electron beam lithography and dry etching of quantum well layers.Abstract:
The paper discusses the fundamental technological processes for the fabrication of one- and zero-dimensional III–V compound semiconductor structures which are developed for optical spectroscopy. Using high-resolution electron beam lithography, two different approaches to the fabrication of quantum wires and dots have been taken: By electron beam lithography and dry etching of quantum well layers lateral confinement of the electron hole pairs can be obtained. Optical investigations of excitonic transitions in these structures, however, show that the properties are largely determined by surface effects. By the combination of implantation induced interdiffusion of quantum wells with high resolution electron-beam lithography on the other hand we define buried quantum wires and dots. Optical spectra from these structures show pronounced energetic shifts which can be traced to changes of the quantum well composition and to lateral quantization.read more
Citations
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Journal ArticleDOI
Electronic states and optical transitions in low-dimensional semiconductors
R. Cingolani,Ross Rinaldi +1 more
Journal ArticleDOI
Radiative recombination in GaAs‐AlxGa1−xAs quantum dots
TL;DR: In this article, the intrinsic model of the emission yield invokes slower momentum and energy relaxation mechanisms as the lateral dimensions decrease and the additional extrinsic effect involves carrier diffusion with a surface nonradiative recombination velocity.
Journal ArticleDOI
High density patterned quantum dot arrays fabricated by electron beam lithography and wet chemical etching
V. B. Verma,James J. Coleman +1 more
TL;DR: In this article, a quantum dot (QD) fabrication method was presented, which allows for the definition of the explicit location and size of an individual QD by using hydrogen silsesquioxane as a wet etch mask for an underlying quantum well.
Journal ArticleDOI
Patterned Quantum Dot Molecule Laser Fabricated by Electron Beam Lithography and Wet Chemical Etching
TL;DR: In this article, an edge-emitting semiconductor laser with a gain medium consisting of two layers of patterned, self-aligned, vertically coupled quantum dots (QDs) using a wet-etching and regrowth technique is demonstrated at 77 K.
Journal ArticleDOI
Technology and photoluminescence of GaAs micro- and nanocrystallites
S. Juen,K. Überbacher,J. Baldauf,K.F. Lamprecht,Richard Tessadri,Reinhard Lackner,R. A. Höpfel +6 more
TL;DR: In this paper, a new method for the production and separation of semiconductor micro- and nanocrystallites is reported. But this method is not suitable for the separation of GaAs micro-crystallites.
References
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Book
The stopping and range of ions in solids
J.P. Biersack,James F. Ziegler +1 more
TL;DR: A review of existing widely-cited tables of ion stopping and ranges can be found in this paper, where a brief exposition of what can be determined by modern calculations is given.
Journal ArticleDOI
Multidimensional quantum well laser and temperature dependence of its threshold current
Yasuhiko Arakawa,H. Sakaki +1 more
TL;DR: In this paper, a new type of semiconductor laser is studied, in which injected carriers in the active region are quantum mechanically confined in two or three dimensions (2D or 3D), and the effects of such confinements on the lasing characteristics are analyzed.
Journal ArticleDOI
Superlattice and negative differential conductivity in semiconductors
Leo Esaki,Raphael Tsu +1 more
TL;DR: The study of superlattices and observations of quantum mechanical effects on a new physical scale may provide a valuable area of investigation in the fieId of semiconductors.
Journal ArticleDOI
Linewidth dependence of radiative exciton lifetimes in quantum wells
Jochen Feldmann,G. Peter,Ernst O. Göbel,Philip Dawson,Karen J. Moore,C. T. Foxon,R. J. Elliott +6 more
TL;DR: The fundamental relationship between radiative lifetime and spectral linewidth of freeexcitons is demonstrated theoretically and experimentally for quasi 2D excitons in GaAs/AlGaAs quantum wells.