35 citations · 141 across the 13 of their papers we have counts for
7 papers · 1 filter
Optical characterization of dislocation free Ge and GeOI wafers
S. Kalem, I. Romandic, A. Theuwis
Optical properties of dislocations free state-of-the-art Germanium(Ge) and Germanium-oninsulator(GeOI) wafers have been characterized using Fourier transformed infrared spectroscop…
Transformation of germanium to fluogermanates
S. Kalem, O. Arthursson, I. Romandic
The surface of a single crystal Germanium wafer was transformed to crystals of germanium fluorides and oxides upon exposure to a vapor of HF and HNO3 chemical mixture. Structure an…
Controlled thinning and surface smoothening of silicon nanopillars
S Kalem, P Werner, B Nilsson +4
A convenient method has been developed to thin electron beam fabricated Silicon nanopillars under controlled surface manipulation by transforming the surface of the pillars to an o…
Near-IR photoluminescence from Si/Ge nanowire grown silicon wafers: effect of HF treatment
Seref Kalem, Peter Werner, Vadim Talalaev
We present the room temperature (RT) near-infrared (NIR) photoluminescence (PL) properties of Si/Ge nanowire (NW) grown silicon wafers which were treated by vapor of HF:HNO3 chemic…
Ellipsometry studies of Si/Ge superlattices with embedded Ge dots
Seref Kalem, Orjan Arthursson, Peter Werner
In this paper, we present an analysis for treating the spectroscopic ellipsometry response of Si/Ge superlattices (SL) with embedded Ge dots. Spectroscopic ellipsometry (SE) measur…
Photoluminescence from Silicon nanoparticles embedded in ammonium silicon hexafluoride
Seref Kalem, Peter Werner, Vadim Talalaev +3
Silicon (Si) nanoparticles (NPs) were synthesized by transforming Si wafer surface to ammonium silicon hexafluoride (ASH) or (NH4)2SiF6 under acid vapor treatment. Si-NPs are embed…
Controlling photon emission from silicon for photonic applications
Seref Kalem
The importance of a photon source that would be compatible with silicon circuitry is crucial for data communication networks. A photon source with energies ranging from UV to near…