Stronger Coupling of Quantum Dots in Hole Transport Layer Through Intermediate Ligand Exchange to Enhance the Efficiency of PbS Quantum Dot Solar Cells

Y Wei, C Ding, G Shi, H Bi, Y Li, H Li, D Liu… - Small …, 2024 - Wiley Online Library
Nowadays, the extensively used lead sulfide (PbS) quantum dot (QD) hole transport layer
(HTL) relies on layer‐by‐layer method to replace long chain oleic acid (OA) ligands with …

SiGe nanocrystals in SiO2 with high photosensitivity from visible to short-wave infrared

I Stavarache, C Logofatu, MT Sultan, A Manolescu… - Scientific Reports, 2020 - nature.com
Abstract Films of SiGe nanocrystals (NCs) in oxide have the advantage of tuning the energy
band gap by adjusting SiGe NCs composition and size. In this study, SiGe-SiO2 amorphous …

[图书][B] Silicon, germanium, and their alloys: growth, defects, impurities, and nanocrystals

G Kissinger, S Pizzini - 2014 - books.google.com
Despite the vast knowledge accumulated on silicon, germanium, and their alloys, these
materials still demand research, eminently in view of the improvement of knowledge on …

Optical properties of spherical quantum dot with modified Pöschl–Teller potential

DB Hayrapetyan, EM Kazaryan… - Superlattices and …, 2013 - Elsevier
In this paper the electronic and hole states in three regimes of size quantization in spherical
quantum dot with modified Pöschl–Teller potential made of GaAs are studied. Energy …

Novel semi‐transparent solar cell based on ultrathin multiple Si/Ge quantum wells

H Meddeb, M Götz‐Köhler, C Flathmann… - Progress in …, 2023 - Wiley Online Library
Unlike conventional opaque solar cells, semi‐transparent solar cells enable simultaneous
electricity generation and light transmission. Along with solar energy harvesting, the offered …

Size dependent light absorption modulation and enhanced carrier transport in germanium quantum dots devices

S Cosentino, EG Barbagiovanni, I Crupi… - Solar Energy Materials …, 2015 - Elsevier
Quantum confinement in closely packed arrays of Ge quantum dots (QDs) was studied for
energy applications. In this work, we report an efficient tuning mechanism of the light …

Investigation of quantum size effects on the optical absorption in ultrathin single quantum well solar cell embedded as a nanophotonic resonator

H Meddeb, M Götz-Köhler, N Osterthun… - IEEE Journal of …, 2022 - ieeexplore.ieee.org
Subwavelength optical nanocavity using semiconductor nanostructures is a key
nanophotonic approach for various optoelectronic devices. In such low-dimensional …

Light harvesting with Ge quantum dots embedded in SiO2 or Si3N4

S Cosentino, E Sungur Ozen, R Raciti… - Journal of Applied …, 2014 - pubs.aip.org
Germanium quantum dots (QDs) embedded in SiO 2 or in Si 3 N 4 have been studied for
light harvesting purposes. SiGeO or SiGeN thin films, produced by plasma enhanced …

Role of quantum confinement in luminescence efficiency of group IV nanostructures

EG Barbagiovanni, DJ Lockwood, NL Rowell… - Journal of Applied …, 2014 - pubs.aip.org
Experimental results obtained previously for the photoluminescence efficiency (PL eff) of Ge
quantum dots (QDs) are theoretically studied. A log-log plot of PL eff versus QD diameter (D) …

Amorphous Ge quantum dots embedded in crystalline Si: ab initio results

M Laubscher, S Küfner, P Kroll… - Journal of Physics …, 2015 - iopscience.iop.org
We study amorphous Ge quantum dots embedded in a crystalline Si matrix through structure
modeling and simulation using ab initio density functional theory including spin–orbit …