نتایج جستجو برای: nanostructure materials

تعداد نتایج: 439564  

2014
Arden L. Moore Li Shi

The rapid development of faster, cheaper, and more powerful computing has led to some of the most important technological and societal advances in modern history. However, the physical means associated with enhancing computing capabilities at the device and die levels have also created a very challenging set of circumstances for keeping electronic devices cool, a critical factor in determining ...

2011
SL Yang RS Gao PL Niu ZY Zou RH Yu

A complex three-dimensional (3D) feather-like AlN nanostructure was synthesized by a direct reaction of high-purity Al granules with nitrogen using an arc discharge method. By adjusting the discharge time, a coral-like nanostructure, which evolved from the feather-like nanostructure, has also been observed. The novel 3D feather-like AlN nanostructure has a hierarchical dendritic structure, whic...

Journal: :Nanoscale 2015
Jingfei Zhang Huimin Zhu Ping Wu Cunwang Ge Dongmei Sun Lin Xu Yawen Tang Yiming Zhou

Carbon-based materials have recently received increased attention as very promising anode materials for rechargeable lithium-ion batteries (LIBs) because of their non-toxicity, low cost, and excellent performances. Nanostructure engineering has been demonstrated as an effective approach to improve the electrochemical performance of electrode materials. Here, we present a facile and scalable syn...

Journal: :Electrochemistry 2022

Technology for ion conduction in Li2S nanostructure has attracted considerable interest achieving the intrinsic performance of Li-S batteries and obtaining highly conductive materials. Herein, a quantitative relationship between transport relaxation behavior Li2S–CaS nanocomposite is revealed based on complex conductivity electric modulus formalism. nanocomposites prepared by high-energy ball m...

2014
Kannatassen Appavoo Richard F. Haglund Jr.

Manipulating optical signals below the diffraction limit is crucial for next-generation data-storage and telecommunication technologies. Although controlling the flow of light around nanoscale waveguides was achieved over a decade ago, modulating optical signals at terahertz frequencies within nanoscale volumes remains a challenge. Since the physics underlying any modulator relies on changes in...

Journal: :Journal of Renewable and Sustainable Energy 2023

Various techniques to enhance the performance of thermoelectric materials have been reviewed in an unified way. The influence synthesis techniques, post-synthesis treatment, microstructure, nanostructure, doping, and interface on materials' transport properties has discussed. research ideas given by researchers are presented tabular forms so that young engineers can find potential gaps best pra...

Journal: :Current Genomics 2008
Anna Poma Maria L Di Giorgio

Engineered nanomaterials are commonly defined as materials with at least one dimension of 100 nanometers or less. Such materials typically possess nanostructure-dependent properties (e.g., chemical, mechanical, electrical, optical, magnetic, biological), which make them desiderable for commercial or medical application. However, these same properties may potentially lead to nanostructure-depend...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2018
Te-Huan Liu Jiawei Zhou Mingda Li Zhiwei Ding Qichen Song Bolin Liao Liang Fu Gang Chen

Recent advancements in thermoelectric materials have largely benefited from various approaches, including band engineering and defect optimization, among which the nanostructuring technique presents a promising way to improve the thermoelectric figure of merit (zT) by means of reducing the characteristic length of the nanostructure, which relies on the belief that phonons' mean free paths (MFPs...

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