T. Köppen

Highly uniform and strain-free GaAs quantum dots fabricated by filling of self-assembled nanoholes

Ch. Heyn, A. Stemmann, T. Köppen et al. · Applied Physics Letters · 2009 · 147 citations

Materials Science, Engineering, Self-assembled Nanoholes +13

Local droplet etching of nanoholes and rings on GaAs and AlGaAs surfaces

A. Stemmann, Ch. Heyn, T. Köppen et al. · Applied Physics Letters · 2008 · 96 citations · Full text

Wide-bandgap Semiconductor, Ultralow Density, Engineering +18

Optical Properties of GaAs Quantum Dots Fabricated by Filling of Self-Assembled Nanoholes

Ch. Heyn, A. Stemmann, T. Köppen et al. · Nanoscale Research Letters · 2009 · 51 citations · Full text

Local etching of nanoholes and quantum rings with InxGa1−x droplets

A. Stemmann, T. Köppen, M. Grave et al. · Journal of Applied Physics · 2009 · 39 citations

Wide-bandgap Semiconductor, Engineering, Electron-beam Lithography +19

Mechanism and applications of local droplet etching

Ch. Heyn, A. Stemmann, Matthias Klingbeil et al. · Journal of Crystal Growth · 2010 · 18 citations

Materials Science, Engineering, Surface Science +5