Ligands on Nanocrystal Surfaces, the 1H Nuclear Magnetic Resonance Fingerprint

Z Hens - Accounts of Chemical Research, 2023 - ACS Publications
Conspectus Surfaces are an integral part of colloidal nanocrystals (NCs). Hence,
understanding the binding and packing to NC surfaces of organic ligands, which are often …

Thermodynamics of nanocrystal–ligand binding through isothermal titration calorimetry

AB Greytak, SL Abiodun, JM Burrell, EN Cook… - Chemical …, 2022 - pubs.rsc.org
Manipulations of nanocrystal (NC) surfaces have propelled the applications of colloidal NCs
across various fields such as bioimaging, catalysis, electronics, and sensing applications. In …

Evidence and structural insights into a ligand-mediated phase transition in the solvated ligand shell of quantum dots

JJ Calvin, AB Sedlak, AS Brewer, TM Kaufman… - ACS …, 2024 - ACS Publications
As synthesized, nanocrystal surfaces are typically covered in coordinating organic ligands,
and the degree of packing and order of these ligands are ongoing questions in the field of …

Extremely long-lived charge donor states formed by visible irradiation of quantum dots

MK Homer, HC Larson, GJ Dixon, E Miura-Stempel… - ACS …, 2024 - ACS Publications
Using cyclic voltammetry under illumination, we recently demonstrated that CdS quantum
dots (QDs) form charge donor states that live for at least several minutes after illumination …

Reductive pathways in molten inorganic salts enable colloidal synthesis of III-V semiconductor nanocrystals

JC Ondry, Z Zhou, K Lin, A Gupta, JH Chang, H Wu… - Science, 2024 - science.org
Colloidal quantum dots, with their size-tunable optoelectronic properties and scalable
synthesis, enable applications in which inexpensive high-performance semiconductors are …

Metal-Dictated Reactivity of Z-Type Ligands to Passivate Surface Defects on CdSe Nanocrystals

JE Kelm, JL Dempsey - Journal of the American Chemical Society, 2024 - ACS Publications
Accessing semiconductor nanocrystals free from surface defects is an outstanding challenge
in the design of materials with targeted properties. Despite the established importance of Z …

Ligand-Induced Size-Dependent Circular Dichroism in Quantum Dots

D Chabeda, S Gee, E Rabani - The Journal of Physical Chemistry …, 2024 - ACS Publications
Recent experiments have probed the chiral properties of semiconductor nanocrystal (NC)
quantum dots (QDs), but understanding the circular dichroism line shape, excitonic features …

Measuring Relative Energies of Ligand Binding Conformations on Nanocluster Surfaces with Temperature-Dependent FTIR Spectroscopy

MD Klein, CH Bisted, FY Dou… - The Journal of …, 2023 - ACS Publications
We present a method to measure relative energies between binding conformations of
carboxylate ligands on InP magic-sized clusters in solution. Using Markov chain Monte …

Ligand Exchange of Quantum Dots: A Thermodynamic Perspective

M Liu, G Tang, Y Liu, FL Jiang - The Journal of Physical Chemistry …, 2024 - ACS Publications
Colloidal quantum dots (QDs) consist of an inorganic core and organic surface ligands.
Surface ligands play a dominant role in maintaining the colloidal stability of QDs and …

Spontaneous patterning of binary ligand mixtures on CdSe nanocrystals: From random to Janus packing

O Elimelech, M Oded, D Harries, U Banin - ACS nano, 2023 - ACS Publications
Binary compositions of surface ligands are known to improve the colloidal stability and
fluorescence quantum yield of nanocrystals (NCs), due to ligand–ligand interactions and …