Explanipedia

Heralded Emission Detection in Quantum Dot Solids under Twin-Photon Excitation Open

C. H. Tsao, Xiang Li, Alex Hinkle, Yifan Chen, Elvar Oskarsson , et al. · 2025

Harnessing quantum correlations between photons is an emerging direction in optical spectroscopy, but experimental progress has thus far been limited to fluorescence-detected studies of molecular systems at room temperature. Here, we demon…

Shell Phase and Morphology Control for Emission Tuning in III–V Core/Shell Quantum Dots Open

Xiang Li, Einav Scharf, Adar Levi, Yinon Deree, David Stone , et al. · 2025

Epitaxial growth of shells on III-V semiconductor quantum dot (QD) cores yields improved fluorescence quantum efficiency and stability toward their implementation in light emission technologies. Here, we control the shell morphology and cr…

Role of Superlattice Phonons in Charge Localization Across Quantum Dot Arrays Open

Bokang Hou, Matthew J. O’Rourke, Uri Banin, Michael Thoss, Eran Rabani · 2025

Understanding charge transport in semiconductor quantum dot (QD) assemblies is important for developing the next generation of solar cells and light-harvesting devices based on QD technology. One of the key factors that governs the transpo…

Photocatalytic Semiconductor–Metal Hybrid Nanoparticles: Single-Atom Catalyst Regime Surpasses Metal Tips Open

Shira Gigi, Tal Cohen, Daniel Zanetti de Florio, Adar Levi, David Stone , et al. · 2025

Semiconductor-metal hybrid nanoparticles (HNPs) are promising materials for photocatalytic applications, such as water splitting for green hydrogen generation. While most studies have focused on Cd containing HNPs, the realization of actua…

Unravelling quantum dot–molecule interactions for π-conjugated ligands: insights into binding and anchoring group effects Open

Yinon Deree, Adar Levi, Xiang Li, Ori Gidron, Uri Banin · 2025

Quantum dots (QDs) coated with π-conjugated ligands display triplet energy transfer. The efficiency strongly depends on the binding and the molecular orientation, presenting guidelines for efficient photon upconversion via QD photosensitiz…

Collective Interactions of Quantum-Confined Excitons in Halide Perovskite Nanocrystal Superlattices Open

Shai Levy, O. Beer, Saar Shaek, Alexey Gorlach, Einav Scharf , et al. · 2024

Collective optical properties can emerge from an ordered ensemble of emitters due to interactions between the individual units. Superlattices of halide perovskite nanocrystals exhibit collective light emission, influenced by dipole-dipole …

Size-Dependent Photocatalysis by Wurtzite InP Quantum Dots Utilizing the Red Spectral Region Open

David Stone, Shira Gigi, Tom Naor, Xiang Li, Uri Banin · 2024

The Role of Superlattice Phonons in Charge Localization Across Quantum Dot Arrays Open

Bokang Hou, Matthew J. Coley-O'Rourke, Uri Banin, Michael Thoss, Eran Rabani · 2024

Understanding charge transport in semiconductor quantum dot (QD) assemblies is important for developing the next generation of solar cells and light-harvesting devices based on QD technology. One of the key factors that governs the transpo…

NC Meets CN: Porous Photoanodes with Polymeric Carbon Nitride/ZnSe Nanocrystal Heterojunctions for Photoelectrochemical Applications Open

Sanjit Mondal, Tom Naor, Michael Volokh, David Stone, Josep Albero , et al. · 2024

The utilization of photoelectrochemical cells (PEC) for converting solar energy into fuels (e.g., hydrogen) is a promising method for sustainable energy generation. We demonstrate a strategy to enhance the performance of PEC devices by int…

Nanocrystal Assemblies: Current Advances and Open Problems Open

Carlos L. Bassani, Greg van Anders, Uri Banin, Dmitry Baranov, Qian Chen , et al. · 2024

We explore the potential of nanocrystals (a term used equivalently to nanoparticles) as building blocks for nanomaterials, and the current advances and open challenges for fundamental science developments and applications. Nanocrystal asse…

Seeing is believing: Correlating optoelectronic functionality with atomic scale imaging of single semiconductor nanocrystals Open

Yonatan Ossia, Adar Levi, Nadav Chefetz, Amir Peleg, Sergei Remennik , et al. · 2024

A unique on-chip method for the direct correlation of optical properties, with atomic-scale chemical–structural characteristics for a single quantum dot (QD), is developed and utilized in various examples. This is based on performing singl…

Optical Sensing of Nanoparticles Employing Porous Silicon Thin Films Open

A. Sa’ar, Vered Riven, Chalom Zemmour, Tom Naor, Uri Banin , et al. · 2024

Size and Emission Control of Wurtzite InP Nanocrystals Synthesized from Cu<sub>3–<i>x</i></sub>P by Cation Exchange Open

David Stone, Xiang Li, Tom Naor, Jiekai Dai, Sergei Remennik , et al. · 2023

Phosphide-based nanocrystals (NCs), including InP and Cu3–xP, are relevant for applications in light-emitting devices and catalysis, yet their synthetic design is limited in terms of size range and homogeneity. We report the synthesis of u…

The Effect of Monomer Size on Fusion and Coupling in Colloidal Quantum Dot Molecules Open

Adar Levi, Bokang Hou, Omer Alon, Yonatan Ossia, Lior Verbitsky , et al. · 2023

The fusion step in the formation of colloidal quantum dot molecules, constructed from two core/shell quantum dots, dictates the coupling strength and hence their properties and enriched functionalities compared to monomers. Herein, studyin…

ZnO Quantum Photoinitiators as an All-in-One Solution for Multifunctional Photopolymer Nanocomposites Open

Tom Naor, Shira Gigi, Nir Waiskopf, Gila Jacobi, Sivan Shoshani , et al. · 2023

Nanocomposites are constructed from a matrix material combined with dispersed nanosized filler particles. Such a combination yields a powerful ability to tailor the desired mechanical, optical, electrical, thermodynamic, and antimicrobial …

Two Biexciton Types Coexisting in Coupled Quantum Dot Molecules Open

Nadav Frenkel, Einav Scharf, Gur Lubin, Adar Levi, Yossef E. Panfil , et al. · 2023

Coupled colloidal quantum dot molecules (CQDMs) are an emerging class of nanomaterials, manifesting two coupled emission centers and thus introducing additional degrees of freedom for designing quantum-dot-based technologies. The propertie…

Controlling the Surface of Aluminum Nanocrystals: From Aluminum Oxide to Aluminum Fluoride Open

Shalaka Varshney, Meirav Oded, Sergei Remennik, Vitaly Gutkin, Uri Banin · 2023

Aluminum nanocrystals are emerging as a promising alternative to silver and gold for various applications ranging from plasmonic functionalities to photocatalysis and as energetic materials. Such nanocrystals often exhibit an inherent surf…

Incoherent nonadiabatic to coherent adiabatic transition of electron transfer in colloidal quantum dot molecules Open

Bokang Hou, Michael Thoss, Uri Banin, Eran Rabani · 2023

Electron transfer is a fundamental process in chemistry, biology, and physics. One of the most intriguing questions concerns the realization of the transitions between nonadiabatic and adiabatic regimes of electron transfer. Using colloida…

Two Biexciton Types Coexisting in Coupled Quantum Dot Molecules Open

Nadav Frenkel, Einav Scharf, Gur Lubin, Adar Levi, Yossef E. Panfil , et al. · 2023

Coupled colloidal quantum dot molecules are an emerging class of nanomaterials, introducing new degrees of freedom for designing quantum dot-based technologies. The properties of multiply excited states in these materials are crucial to th…

Electric field induced color switching in colloidal quantum dot molecules at room temperature Open

Yonatan Ossia, Adar Levi, Yossef E. Panfil, Somnath Koley, Einav Scharf , et al. · 2023

Colloidal semiconductor quantum dots are robust emitters implemented in numerous prototype and commercial optoelectronic devices. However, active fluorescence color tuning, achieved so far by electric-field induced Stark effect, has been l…

Spontaneous Patterning of Binary Ligand Mixtures on CdSe Nanocrystals: From Random to Janus Packing Open

Orian Elimelech, Meirav Oded, Daniel Harries, Uri Banin · 2023

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 surface organization. Herein, we follow the thermodynamics of a…

Incoherent Nonadiabatic to Coherent Adiabatic Transition of Electron Transfer in Colloidal Quantum Dot Molecules Open

Bokang Hou, Michael Thoss, Uri Banin, Eran Rabani · 2023

This is a code repository for paper under the title of "Incoherent Nonadiabatic to Coherent Adiabatic Transition of Electron Transfer in Colloidal Quantum Dot Molecules". Electron transfer is an important and fundamental process in chemist…

Rich Landscape of Colloidal Semiconductor–Metal Hybrid Nanostructures: Synthesis, Synergetic Characteristics, and Emerging Applications Open

Yuval Ben‐Shahar, David Stone, Uri Banin · 2023

Nanochemistry provides powerful synthetic tools allowing one to combine different materials on a single nanostructure, thus unfolding numerous possibilities to tailor their properties toward diverse functionalities. Herein, we review the p…

Nonadiabatic to Adiabatic Transition of Electron Transfer in Colloidal Quantum Dot Molecules Open

Bokang Hou, Michael Thoss, Uri Banin, Eran Rabani · 2022

Electron transfer is an important and fundamental process in chemistry, biology and physics, and has received significant attention in recent years. Perhaps one of the most intriguing questions concerns with the realization of the transiti…

Nonadiabatic to Adiabatic Transition of Electron Transfer in Colloidal Quantum Dot Molecules Open

Bokang Hou, Michael Thoss, Uri Banin, Eran Rabani · 2022

Electron transfer is an important and fundamental process in chemistry, biology and physics, and has received significant attention in recent years. Perhaps one of the most intriguing questions concerns with the realization of the transiti…

Zn‐Doped P‐Type InAs Nanocrystal Quantum Dots Open

Lior Asor, Jing Liu, Shuting Xiang, Nir Tessler, Anatoly I. Frenkel , et al. · 2022

Doped heavy metal‐free III–V semiconductor nanocrystal quantum dots (QDs) are of great interest both from the fundamental aspects of doping in highly confined structures, and from the applicative side of utilizing such building blocks in t…

Composite Indium Tin Oxide Nanofibers with Embedded Hematite Nanoparticles for Photoelectrochemical Water Splitting Open

Oren Elishav, David Stone, Anton Tsyganok, S. Jayanthi, David S. Ellis , et al. · 2022

Hematite is a classical photoanode material for photoelectrochemical water splitting due to its stability, performance, and low cost. However, the effect of particle size is still a question due to the charge transfer to the electrodes. In…

Hybridization and deconfinement in colloidal quantum dot molecules Open

Lior Verbitsky, Dipti Jasrasaria, Uri Banin, Eran Rabani · 2022

The structural, electronic, and optical properties of CdSe/CdS core–shell colloidal quantum dot molecules, a new class of coupled quantum dot dimers, are explored using atomistic approaches. Unlike the case of dimers grown by molecular bea…

Photon correlations in colloidal quantum dot molecules controlled by the neck barrier Open

Somnath Koley, Jiabin Cui, Yossef E. Panfil, Yonatan Ossia, Adar Levi , et al. · 2022

Ligands Mediate Anion Exchange between Colloidal Lead-Halide Perovskite Nanocrystals Open

Einav Scharf, Franziska Krieg, Orian Elimelech, Meirav Oded, Adar Levi , et al. · 2022

The soft lattice of lead-halide perovskite nanocrystals (NCs) allows tuning their optoelectronic characteristics via anion exchange by introducing halide salts to a solution of perovskite NCs. Similarly, cross-anion exchange can occur upon…

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