Graphene is frequently in news recently. What is its importance? 1. It is a two-dimensional material and has good electrical conductivity. 2. It is one of the thinnest by strongest materials tested so far. 3. It is entirely made of silicon and has high op

examrobotsa's picture
Q: 39 (IAS/2012)
Graphene is frequently in news recently. What is its importance?
1. It is a two-dimensional material and has good electrical conductivity.
2. It is one of the thinnest by strongest materials tested so far.
3. It is entirely made of silicon and has high optical transparency.
4. It can be used as ’conducting electrodes’ required for touch screens, LCDs and organic LEDs
Which of the statements given above are correct ?

question_subject: 

Current Affairs

question_exam: 

IAS

stats: 

0,94,78,19,17,94,42

keywords: 

{'graphene': [0, 0, 0, 3], 'good electrical conductivity': [0, 0, 0, 1], 'importance': [2, 0, 0, 9], 'dimensional material': [0, 0, 0, 1], 'strongest materials': [0, 0, 0, 2], 'electrodes': [0, 1, 0, 0], 'silicon': [0, 0, 1, 0], 'lcds': [0, 0, 0, 1], 'touch screens': [0, 0, 0, 1]}

Graphene is a two-dimensional material that consists of a single layer of carbon atoms arranged in a hexagonal lattice. It has exceptional mechanical, thermal, and electrical properties. Graphene is the thinnest but strongest material known, and it is a good conductor of electricity. Its high surface area and good conductivity make it a promising material for various applications, such as sensors, energy storage devices, and electronics. Graphene is not made entirely of silicon, but it is a pure carbon material. It is used as a "conducting electrode" required for touch screens, LCDs, organic LEDs, and solar cells due to its high electrical conductivity and transparency.