scholarly journals Vertical Silicon Nanowire Platform for Low Power Electronics and Clean Energy Applications

2012 ◽  
Vol 2012 ◽  
pp. 1-21 ◽  
Author(s):  
D.-L. Kwong ◽  
X. Li ◽  
Y. Sun ◽  
G. Ramanathan ◽  
Z. X. Chen ◽  
...  
Keyword(s):  
Nonvolatile Memory ◽  
Waste Heat ◽  
Light Trapping ◽  
Silicon Nanowire ◽  
Clean Energy ◽  
Novel Device ◽  
Energy Applications ◽  
Integration Schemes ◽  
Photovoltaic Energy Conversion ◽  
Vertical Wire

This paper reviews the progress of the vertical top-down nanowire technology platform developed to explore novel device architectures and integration schemes for green electronics and clean energy applications. Under electronics domain, besides having ultimate scaling potential, the vertical wire offers (1) CMOS circuits with much smaller foot print as compared to planar transistor at the same technology node, (2) a natural platform for tunneling FETs, and (3) a route to fabricate stacked nonvolatile memory cells. Under clean energy harvesting area, vertical wires could provide (1) cost reduction in photovoltaic energy conversion through enhanced light trapping and (2) a fully CMOS compatible thermoelectric engine converting waste-heat into electricity. In addition to progress review, we discuss the challenges and future prospects with vertical nanowires platform.

Enhancement of Hydrogen Storage in Metals by Using a New Technique in Severe Plastic Deformations

2019 ◽  
Vol 799 ◽  
pp. 173-178 ◽  
Author(s):  
Babak Shahreza Omranpour ◽  
Lembit Kommel ◽  
E. Garcia Sanchez ◽  
Yulia Ivanisenko ◽  
Jacques Huot
Keyword(s):  
Hydrogen Storage ◽  
High Pressure Torsion ◽  
Metal Hydrides ◽  
Clean Energy ◽  
Green Energy ◽  
Energy Investment ◽  
Energy Applications ◽  
Viable Solution ◽  
Diffraction Patterns ◽  
A New Technique

Hydrogen is expected to be a viable solution for green-energy investment in future. However, hydrogen storage is a big challenge for stationary and mobile applications. Severe Plastic Deformation (SPD) techniques are well-known to be effective in enhancement of hydrogenation in metals hydrides. This paper shows the effect of a novel SPD technique named “High Pressure Torsion Extrusion-HPTE” on the hydrogenation of metal hydrides and compare it with the conventional method of ECAP. Results of mechanical testing and X-ray diffraction patterns showed significant enhancement in hardness and microstructural refinement in materials after HPTE. Accordingly, hydrogenation kinetics improved dramatically. This achievement could be an initiative to implement HPTE in synthesis of metal hydrides for clean energy applications.

scholarly journals Butterfly wing architectures inspire sensor and energy applications

2020 ◽  
Author(s):  
Maurice I Osotsi ◽  
Wang Zhang ◽  
Imran Zada ◽  
Jiajun Gu ◽  
Qinglei Liu ◽  
...  
Keyword(s):  
Environmental Remediation ◽  
Light Trapping ◽  
Functional Materials ◽  
Butterfly Wing ◽  
Energy Materials ◽  
Energy Applications ◽  
Wing Scale ◽  
Improved Performance ◽  
And Performance ◽  
External Stimuli

Abstract Natural biological systems are constantly developing efficient mechanisms to counter adverse effects of increasing human population and depleting energy resources. Their intelligent mechanisms are characterized by the ability to detect changes in the environment, store and evaluate information, and respond to external stimuli. Bio-inspired replication into man-made functional materials guarantees enhancement of characteristics and performance. Specifically, butterfly architectures have inspired the fabrication of sensor and energy materials by replicating their unique micro/nanostructures, light-trapping mechanisms and selective responses to external stimuli. These bio-inspired sensor and energy materials have shown improved performance in harnessing renewable energy, environmental remediation and health monitoring. Therefore, this review highlights recent progress reported on the classification of butterfly wing scale architectures and explores several bio-inspired sensor and energy applications.

scholarly journals Self-driving laboratory for accelerated discovery of thin-film materials

2020 ◽  
Vol 6 (20) ◽  
pp. eaaz8867 ◽  
Author(s):  
B. P. MacLeod ◽  
F. G. L. Parlane ◽  
T. D. Morrissey ◽  
F. Häse ◽  
L. M. Roch ◽  
...  
Keyword(s):  
Thin Film ◽  
Materials Science ◽  
Perovskite Solar Cells ◽  
Hole Mobility ◽  
Clean Energy ◽  
Research Process ◽  
Hole Transport ◽  
Inorganic Materials ◽  
Consumer Electronics ◽  
Energy Applications

Discovering and optimizing commercially viable materials for clean energy applications typically takes more than a decade. Self-driving laboratories that iteratively design, execute, and learn from materials science experiments in a fully autonomous loop present an opportunity to accelerate this research process. We report here a modular robotic platform driven by a model-based optimization algorithm capable of autonomously optimizing the optical and electronic properties of thin-film materials by modifying the film composition and processing conditions. We demonstrate the power of this platform by using it to maximize the hole mobility of organic hole transport materials commonly used in perovskite solar cells and consumer electronics. This demonstration highlights the possibilities of using autonomous laboratories to discover organic and inorganic materials relevant to materials sciences and clean energy technologies.

Development and Test of a Fuel Cell Based Micro-CHP System

2015 ◽  
Vol 1092-1093 ◽  
pp. 175-180
Author(s):  
Dong Lai Xie ◽  
Bing Qi Wang
Keyword(s):  
Fuel Cell ◽  
Natural Gas ◽  
Waste Heat ◽  
Thermal Power ◽  
Clean Energy ◽  
Prototype System ◽  
Test Results ◽  
Conversion Unit ◽  
Chp System ◽  
Auxiliary Unit

Fuel cell based micro combined heat and power (micro-CHP) systems are residential scale clean energy conversion unit. It employs fuel cells in a compact system that converts natural gas, propane or other fuels into both electricity and heat, which increases efficiency by simultaneously generating power and heat for one unit, on-site within a home. A prototype system consisting of a natural gas steam reforming unit, CO cleaning unit, PEM fuel cell stack, waste heat recovery unit and auxiliary unit is integrated. Test results of the prototype show that it can start within an hour and the syngas produced can meet the fuel cell’s requirements. The prototype’s electric power and thermal power are 200W and 530W respectively, while the electric and thermal efficiency are 15.4% and 40.9% respectively.

Oxyfuel Combustion for Clean Energy Applications

2019 ◽  
Author(s):  
Medhat A. Nemitallah ◽  
Mohamed A. Habib ◽  
Hassan M. Badr
Keyword(s):  
Clean Energy ◽  
Energy Applications ◽  
Oxyfuel Combustion

Feasibility of zeolitic imidazolate framework membranes for clean energy applications

2012 ◽  
Vol 5 (6) ◽  
pp. 7637 ◽  
Author(s):  
Aaron W. Thornton ◽  
David Dubbeldam ◽  
Ming S. Liu ◽  
Bradley P. Ladewig ◽  
Anita J. Hill ◽  
...  
Keyword(s):  
Clean Energy ◽  
Zeolitic Imidazolate Framework ◽  
Energy Applications
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