35 citations · 141 across the 13 of their papers we have counts for
13 papers
Time-resolved radiative recombination in black silicon
Seref Kalem
Black silicon (b-Si) has been receiving a great deal of interest for its potential to be used in applications ranging from sensors to solar cells and electrodes in batteries due to…
Defect studies in strain-relaxed SiGe alloys
Seref Kalem
Raman light scattering, low-temperature photoluminescence, light-scattering tomography, and hydrogenation were used to investigate optical properties of defects in strain-relaxed S…
Infrared spectroscopy of hydrogenated and chlorinated amorphous silicon
S. Kalem, R. Mostefaoui, J. Bourneix +1
The evolution is presented of infrared transmission spectra of hydrogenated and chlorinated amorphous silicon films versus the chlorine concentration and the annealing temperature.…
1320 nm Light Source From Deuterium Treated Silicon
Seref Kalem
We report an efficient room temperature photon source at 1320 nm telecommunication wavelength from nanostructured silicon surface. The activation of this light source was realized…
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…
Black Silicon with high density and high aspect ratio nanowhiskers
S Kalem, P Werner, Ö Arthursson +5
Physical properties of black Silicon (b-Si) formed on Si wafers by reactive ion etching in chlorine plasma are reported in an attempt to clarify the formation mechanism and the ori…
Synthesis of ammonium silicon fluoride cryptocrystals on silicon by dry etching
Seref Kalem
Cryptocrystal layers of ammonium silicon fluoride (NH4)2SiF6 were grown on silicon wafers by dry etching using the vapors of HF:HNO3 solution at room temperature. As-grown layers a…