Why Graphene is considered as semi metal?

More Savita Maurya's questions See All

How can we choose which journals to choose for publication?

Impact factor is not the only metric that decides the effectiveness of the research publication? Sometimes public perception is good for some journal in spite of comparatively lower impact...

03 April 2018 5,043 2 View

What is the best method to deposit graphene on HfO2?

I want to deposit graphene on HfO2 deposit on GaAs/ Si substrate. What will be the best method to deposit?

03 April 2018 4,985 2 View

How to deposit Graphene on HfO2 with good interface quality?

I want to deposit a good quality graphene thin film on HfO2 exactly what process steps should I follow for it.

05 June 2017 3,670 3 View

Magnetic properties of HfO2

I want to measure magnetic properties of HfO2 thin films deposited on Silicon wafer. I want to measure its magnetic properties, but I have no idea about its measurement.

05 June 2017 8,318 3 View

How to etch HfO2 when it is deposited on graphene?

03 April 2017 9,638 2 View

What is the difference between semiconductor and semi-metals?

What is the difference between semiconductor and semi-metals? Some materials are called semi-metals and some, semi conductors. then what is the difference?

07 August 2016 10,013 4 View

How to calculate optical band gap from UV spectra?

I have taken UV spectra of HfO2 thin film on Si wafer. How can I calculate optical band gap from this spectra?

03 April 2013 3,124 39 View

• What the possible Persistent Organic Pollutants and Heavy metals present in fluorspar, sediments, and water bodies around its mining area?

Approximate concentrations are require in compared with the WHO permissible limts

11 August 2024 2,723 1 View

How can I find access to heavy metal reference doses from the EPA and WHO websites?

Reference dose and Maximum acceptable concentrations HMs

03 August 2024 8,230 4 View

Short Synthesis of Graphene Oxide from Natural Graphite Flakes?

I am in search of a modified Hummer's method, which can be used to synthesis graphene oxide within 6-8 hours. As I am a student it is not allowed for us to work after 5 in the laboratory. So I am...

01 August 2024 8,368 2 View

How can I separate graphene from amorphous carbon of similar particle sizes?

The starting material is a finely ground powder. Some particles contain more graphene than others.

30 July 2024 3,978 2 View

Graphene and graphene oxide as cancer factor?

Please, can any one inform us about risks of graphene and graphene oxide as a factor of cancer growth?

28 June 2024 6,815 4 View

How to conduct bio accessibility analysis of Heavy metals?

for estimation of human health risks

26 June 2024 7,326 3 View

Sorghum bicolor accumulates heavy metals?

If Sorghum bicolor is an accumulation of heavy metals, how are they used as fodder and food for animals?

17 June 2024 8,140 1 View

How to eliminate imaginary phonon frequency in phonon dispersion of Coved Graphene Nanoribbons?

Dear all, I want to calculate the phonon dispersion of 4CNR-1-0 (structure is in Fig. 2 (b) in this article Designing coved graphene nanoribbons with charge carrier mob... ) and then calculate...

17 June 2024 6,911 2 View

Do we need a femto laser for good LIG?

Do we really need a femtosecond laser for Laser-induced graphene(LIG) production on polymers? Other than better resolution and lesser thermal damage is there any other advantages?

13 June 2024 5,294 0 View

What is the size effect of this nanoparticle for flourescence sensing of heavy metals?

Hi, I am working on the flourescence sensing of heavy metal ions in aqeous media using chalcogenide nanoparticles. If I dope a metal ion into this nanoparticles by reducing the moles of already...

11 June 2024 5,568 2 View

Jihao Li

May be because of its property similar with semiconductor

Dillip kumar Mishra

Metals have abundant supply of free electron, so do the graphitic material including graphene...why it can be called semi-metal as its free electron availability unlike metals...again if look at the energy levels, there maynot be overlap of bands(for metals the bands overlap), but just touch each other, in otherwords sometime graphite called as 0eV semiconductor...

Savita Maurya

thank u DILIP

Thameur Issam

It is a semimetal because the conduction band has a significant overlap with the valance band.