Non-exponential decay kinetics: correct assessment and description illustrated by slow luminescence of Si nanostructures

M Greben, P Khoroshyy, I Sychugov… - Applied Spectroscopy …, 2019 - Taylor & Francis
The treatment of time-resolved (TR) photoluminescence (PL) decay kinetics is analysed in
details and illustrated by experiments on semiconductor quantum dots, namely silicon …

Bright and fast scintillations of an inorganic halide perovskite CsPbBr3 crystal at cryogenic temperatures

VB Mykhaylyk, H Kraus, V Kapustianyk, HJ Kim… - Scientific Reports, 2020 - nature.com
Highly efficient scintillation crystals with short decay times are indispensable for improving
the performance of numerous detection and imaging instruments that use-X-rays, gamma …

Near-unity internal quantum efficiency of luminescent silicon nanocrystals with ligand passivation

F Sangghaleh, I Sychugov, Z Yang, JGC Veinot… - ACS …, 2015 - ACS Publications
Spectrally resolved photoluminescence (PL) decays were measured for samples of
colloidal, ligand-passivated silicon nanocrystals. These samples have PL emission energies …

Revisiting an ongoing debate: What role do surface groups play in silicon nanocrystal photoluminescence?

R Sinelnikov, M Dasog, J Beamish, A Meldrum… - ACS …, 2017 - ACS Publications
The origin of photoluminescence (PL) in silicon nanocrystals (SiNCs) remains a subject of
considerable debate. Size-dependent PL that supports the quantum confinement model has …

Charge transport in Si nanocrystal/SiO2 superlattices

S Gutsch, J Laube, AM Hartel, D Hiller… - Journal of Applied …, 2013 - pubs.aip.org
Size-controlled silicon nanocrystals in silicon oxynitride matrix were prepared using plasma-
enhanced chemical vapor deposition following the superlattice approach. A combination of …

Enhanced subband light emission from Si quantum dots/SiO2 multilayers via phosphorus and boron co-do**

D Li, J Chen, T Sun, Y Zhang, J Xu, W Li, K Chen - Optics Express, 2022 - opg.optica.org
Seeking light sources from Si-based materials with an emission wavelength meeting the
requirements of optical telecommunication is a challenge nowadays. It was found that the …

Defect-induced luminescence quenching vs. charge carrier generation of phosphorus incorporated in silicon nanocrystals as function of size

D Hiller, J López-Vidrier, S Gutsch, M Zacharias… - Scientific Reports, 2017 - nature.com
Phosphorus do** of silicon nanostructures is a non-trivial task due to problems with
confinement, self-purification and statistics of small numbers. Although P-atoms incorporated …

Origin of visible and near-infrared photoluminescence from chemically etched Si nanowires decorated with arbitrarily shaped Si nanocrystals

R Ghosh, PK Giri, K Imakita, M Fujii - Nanotechnology, 2014 - iopscience.iop.org
Arrays of vertically aligned single crystalline Si nanowires (NWs) decorated with arbitrarily
shaped Si nanocrystals (NCs) have been fabricated by a silver assisted wet chemical …

Nearly perfect near-infrared luminescence efficiency of Si nanocrystals: A comprehensive quantum yield study employing the Purcell effect

J Valenta, M Greben, SA Dyakov, NA Gippius… - Scientific reports, 2019 - nature.com
Thin layers of silicon nanocrystals (SiNC) in oxide matrix with optimized parameters are
fabricated by the plasma-enhanced chemical vapor deposition. These materials with SiNC …

Absence of quantum confinement effects in the photoluminescence of Si3N4–embedded Si nanocrystals

D Hiller, A Zelenina, S Gutsch, SA Dyakov… - Journal of Applied …, 2014 - pubs.aip.org
Superlattices of Si-rich silicon nitride and Si 3 N 4 are prepared by plasma-enhanced
chemical vapor deposition and, subsequently, annealed at 1150 C to form size-controlled Si …