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Metallic Solids

Metallic Solids

Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....

Ionic Crystal Structures

Ionic Crystal Structures

Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...

Crystal Field Theory - Octahedral Complexes

Crystal Field Theory - Octahedral Complexes

Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...

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Updated: Aug 29, 2025

Synthesis of In37P20O2CR51 Clusters and Their Conversion to InP Quantum Dots

Synthesis of In37P20O2CR51 Clusters and Their Conversion to InP Quantum Dots

Published on: May 7, 2019

Electrical devices designed based on inorganic clusters.

Kuo-Juei Hu¹, Weicheng Yan², Minhao Zhang¹

¹National Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, Jiangsu, People's Republic of China.

|September 5, 2022

Summary

This summary is machine-generated.

Cluster science explores nanoscale structures, bridging atomic and solid-state physics. Mass production of nanoclusters with atomic precision is key for advancing material science applications.

Keywords:

atomic precision electrical devices inorganic clusters

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Last Updated: Aug 29, 2025

Synthesis of In37P20O2CR51 Clusters and Their Conversion to InP Quantum Dots

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Fabrication of Fully Solution Processed Inorganic Nanocrystal Photovoltaic Devices

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Area of Science:

Nanoscale science and engineering
Condensed matter physics
Quantum chemistry

Background:

Cluster science investigates nanoscale structures, acting as a bridge between atomic and solid-state physics.
Nanoclusters, as 0-dimensional quantum dots, exhibit properties influenced by electronic and geometric configurations.
Discrete electronic structures in nanoclusters are size-dependent and controllable for device applications.

Purpose of the Study:

To review the current state of cluster science and its potential in material science.
To highlight the challenges and future directions for nanocluster research.
To emphasize the importance of mass-producible nanoclusters with atomic precision.

Main Methods:

Review of existing literature on cluster formation mechanisms and properties.
Analysis of the relationship between cluster size, electronic structure, and geometric configuration.
Discussion of potential applications, including single-electron transistors.

Main Results:

Nanocluster properties are governed by electronic shell structure for smaller sizes, transitioning to geometric dominance in larger clusters.
Small nanoclusters (1-2 nm) with discrete electronic states show promise for room-temperature single-electron transistors.
Current production rates limit extensive research and application development.

Conclusions:

Advancement of nanoclusters into material science hinges on achieving mass-producible synthesis while maintaining atomic precision.
Overcoming production limitations is crucial for realizing the full potential of cluster science.
Further research into scalable synthesis methods is recommended.