Graphene : Properties and uses
Transcript of Graphene : Properties and uses
![Page 1: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/1.jpg)
Graphene: Heralding A better future
![Page 2: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/2.jpg)
GRAPHENE –Heralding a better future
![Page 3: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/3.jpg)
![Page 4: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/4.jpg)
![Page 5: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/5.jpg)
![Page 6: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/6.jpg)
![Page 7: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/7.jpg)
![Page 8: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/8.jpg)
![Page 9: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/9.jpg)
![Page 10: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/10.jpg)
![Page 11: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/11.jpg)
Heating of silicon carbide
Silicon rising as fumes
Remaining carbon atoms join to form a layer of graphene
Epitaxial growth in silicon carbide
High costHigh QualityLow yield
![Page 12: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/12.jpg)
Unzipping of carbon nanotubesHigh YieldHigh costsStill under research
![Page 13: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/13.jpg)
Chemical Vapor Deposition
High costHigh quality
![Page 14: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/14.jpg)
Micromechanical ExfoliationHigh costVery High qualityVery Low yield
![Page 15: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/15.jpg)
Liquid Phase Exfoliation
Low YieldLow costModerate quality
![Page 16: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/16.jpg)
Reduction of Graphene Oxide
Low cost Low purity
![Page 17: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/17.jpg)
![Page 18: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/18.jpg)
![Page 19: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/19.jpg)
In electronics
Solar cellsUltra thin mobile phones and monitors
Compact yet with higher capacity
Smaller, High performance transistors
![Page 20: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/20.jpg)
In Medicine
![Page 21: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/21.jpg)
In Purification
![Page 22: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/22.jpg)
Sensors
Graphene sensorsGraphene is an ideal material for sensors. Every atom in graphene is exposed to its environment allowing it to sense changes in its surroundings.
DefenceThe extreme sensitivity of graphene-based sensors could also be tuned to chemical warfare agents and explosives. This could allow for early warning detection systems for soldiers in the field potentially saving lives.
![Page 23: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/23.jpg)
The high structural strength of graphene makes it an ideal material to use for manufacturing of composite materials like aircrafts, body armor, vehicles etc.
In Composite Materials
![Page 24: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/24.jpg)
![Page 25: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/25.jpg)
Roll to Roll Method
This method was developed in 2011 by Prof. Shou-En Zhou. He devised a whole new method for production of Graphene using materials like Argon, Methane a Copper plate and a furnace which can reach temperatures of 1000˚C. This method has overcome three of the most pressing issues regarding the commercialization of Graphene, Cost; Scalability; and Production time.
ADVANTAGES
•Low cost•Less Production Time•High Quality•High Scalability
![Page 26: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/26.jpg)
![Page 27: Graphene : Properties and uses](https://reader031.fdocuments.in/reader031/viewer/2022020213/5889267f1a28ab77528b62d9/html5/thumbnails/27.jpg)