Unraveling the excitonics of light emission from metal-halide perovskite quantum dots

P Kambhampati - Nanoscale, 2024 - pubs.rsc.org
Metal halide semicondictor perovskites have been under intense investigation for their
promise in light absorptive applications like photovoltaics. They have more recently …

Mixed Ligand Passivation as the Origin of Near-Unity Emission Quantum Yields in CsPbBr3 Nanocrystals

Y Ding, Z Zhang, S Toso, I Gushchina… - Journal of the …, 2023 - ACS Publications
Key features of syntheses, involving the quaternary ammonium passivation of CsPbBr3
nanocrystals (NCs), include stable, reproducible, and large (often near-unity) emission …

Excitation-Energy-Dependent Photoluminescence Quantum Yield is Inherent to Optically Robust Core/Alloy-Shell Quantum Dots in a Vast Energy Landscape

D Roy, S Ghosh, CK De, S Mukherjee… - The Journal of …, 2022 - ACS Publications
The importance of alloy-shelling in optically robust Core/Alloy-Shell (CAS) QDs has been
described from structural and energetic aspects. Unlike fluorescent dyes, both Core/Shell …

Enhancing Multiexcitonic Emission in Metal-Halide Perovskites by Quantum Confinement

D Strandell, D Dirin, D Zenatti, P Nagpal, A Ghosh… - ACS …, 2023 - ACS Publications
Semiconductor metal halide perovskite nanocrystals have been under intense investigation
for their promise in a variety of optoelectronic applications, which arises from their …

Gain roll-off in cadmium selenide colloidal quantum wells under intense optical excitation

BT Diroll, A Brumberg, RD Schaller - Scientific reports, 2022 - nature.com
Colloidal quantum wells, or nanoplatelets, show among the lowest thresholds for amplified
spontaneous emission and lasing among solution-cast materials and among the highest …

Physical Mechanisms on Absorption and Photoluminescence Properties of Coupled Plasmon–Exciton (Plexciton) Systems

Y Cheng, M Sun - The Journal of Physical Chemistry C, 2023 - ACS Publications
Plexciton is the formation of new hybridized energy states originated from the coupling
between a plasmon and an exciton. To reveal the optical properties of both the exciton and …

Excitation wavelength-dependent quantum yield in water-soluble CdTe quantum dots

K Kaushik, J Mondal, RK Bag, S Sharma, F Anjum… - Nanoscale, 2025 - pubs.rsc.org
The quantum yield (QY) of semiconductor quantum dots (QDs) is severely hampered by the
inherent fluorescence intermittency. The QY of QDs typically increases with an increase in …

Dynamic Quantum-State Renormalization and Effects of Competing Pathways on Carrier Relaxation in Semiconductor Nanoparticles

J Chen, WM Sanderson, RA Loomis - The Journal of Physical …, 2023 - ACS Publications
The magnitude and temporal evolution of the quantum-state renormalization (QSR), or the
energetic shifting of the quantum-confinement states caused by photoexcitation and …

Critical Crystallographic Transition in Violation of Kasha's Rule of Size-Specific ZnO Quantum Dots

D Debnath, SK Pal, H Chatterjee… - Crystal Growth & …, 2023 - ACS Publications
Investigation of the intrinsic relationship between crystallography and electronic properties
may provide an avenue to unravel the photophysical aspects of semiconductor …

A framework for extracting the rates of photophysical processes from biexponentially decaying photon emission data

JM Cleveland, TA Welsch, EY Chen, DB Chase… - arxiv preprint arxiv …, 2024 - arxiv.org
There is strong interest in designing and realizing optically-active semiconductor
nanostructures of greater complexity for applications in fields ranging from biomedical …