Optical and Structural Properties of Si Nanocrystals in SiO2 Films
T Nikitin, L Khriachtchev - Nanomaterials, 2015 - mdpi.com
Optical and structural properties of Si nanocrystals (Si-nc) in silica films are described. For
the SiO x (x< 2) films annealed above 1000° C, the Raman signal of Si-nc and the …
the SiO x (x< 2) films annealed above 1000° C, the Raman signal of Si-nc and the …
Accurate and efficient prediction of optical gaps in silicon and germanium nanoparticles using a high-local-exchange density functional
C Villot, KU Lao - Chemical Physics Letters, 2024 - Elsevier
We investigated the HOMO-LUMO gaps and the optical gaps of Si and Ge nanoparticles
(NPs) with various terminations and sizes using different functionals (HLE16, B3LYP, HSE …
(NPs) with various terminations and sizes using different functionals (HLE16, B3LYP, HSE …
[BOOK][B] Silicon nanophotonics: basic principles, present status, and perspectives
L Khriachtchev - 2016 - books.google.com
Photonics is a key technology of this century. The combination of photonics and silicon
technology is of great importance because of the potentiality of coupling electronics and …
technology is of great importance because of the potentiality of coupling electronics and …
Single-particle states in spherical quantum dots
We calculate the ground and excited electron and hole levels in spherical Si quantum dots
inside Si O 2 in a multiband effective mass approximation. The Luttinger Hamiltonian is used …
inside Si O 2 in a multiband effective mass approximation. The Luttinger Hamiltonian is used …
An energetics assessment of benzo [a] tetracene and benzo [a] pyrene as triplet–triplet annihilation emitters
Optical upconversion (UC) of low energy photons into high energy photons enables solar
cells to harvest photons with energies below the band gap of the absorber, reducing the …
cells to harvest photons with energies below the band gap of the absorber, reducing the …
Configuration-interaction excitonic absorption in small Si/Ge and Ge/Si core/shell nanocrystals
EL De Oliveira, EL Albuquerque… - The Journal of …, 2012 - ACS Publications
The excitonic properties of Si (core)/Ge (shell) and Ge (core)/Si (shell) nanocrystals (NC's)
with diameters of∼ 1.9 nm are investigated using a combination density functional ab initio …
with diameters of∼ 1.9 nm are investigated using a combination density functional ab initio …
Red states versus blue states in colloidal silicon nanocrystals: exciton sequestration into low-density traps
The ultrafast exciton photodynamics of red-emitting and blue-emitting colloidal Si
nanocrystals are contrasted under low (1.5 mJ/cm2) and high (9.1 mJ/cm2) excitation …
nanocrystals are contrasted under low (1.5 mJ/cm2) and high (9.1 mJ/cm2) excitation …
Role of the interface for the electronic structure of Si quantum dots
Approximants consisting of 1–165 Si atoms with complete fluorine (F), hydroxyl (OH), amino
(NH 2), methyl (CH 3), and hydrogen (H) termination were investigated by density-functional …
(NH 2), methyl (CH 3), and hydrogen (H) termination were investigated by density-functional …
Solid-state synthesis of Si 1− x Ge x nanoalloys with composition-tunable energy gaps and visible to near infrared optical properties
Si1− xGex alloy nanocrystals (NCs) are a class of benign semiconductors that show size
and composition-tunable energy gaps and promising optical properties because of the …
and composition-tunable energy gaps and promising optical properties because of the …
Light emission from silicon nanocrystals
OB Gusev, AN Poddubny, AA Prokofiev, IN Yassievich - Semiconductors, 2013 - Springer
The main experimental results of studies of the photoluminescence of silicon nanocrystals
and theoretical methods developed for the description of optical processes occurring in them …
and theoretical methods developed for the description of optical processes occurring in them …