Shivani Dhall

20 Questions 36 Answers 0 Followers

Questions related from Shivani Dhall

Can anyone guide me about air brush technique to deposit the film of CNTs?

Which type of gun/air brush required for this?

26 October 2016 6,671 5 View

Can anyone suggest me, semiconductor or metal necessary for NO gas sensor?

I wish to fabricate NO gas sensor at room temperature.

03 June 2016 1,766 6 View

Can any one suggest me, simple and effective route to synthesis ZnO and WO3 nanorods/nanoparticles?

Can any one suggest me, simple and effective route to synthesis ZnO and WO3 nanorods/nanoparticles? any chemical route...

31 May 2016 8,438 5 View

Can anyone guide me, what is minimum detection limit of NO gas (without affecting our health)?

I have to use this gas for sensing purpose.

16 April 2016 8,849 4 View

Can anyone tell me, how we deposit indium oxide NPs uing thermal evaporator system?

After thermal deposition of Indium , how we convert it Indium oxide with the help of sintering?..

12 April 2016 6,367 3 View

Can any one tell me, How we convert SCCM into PPM in case of gas sensing experiments?

any direct conversion is possible? also, can we change sccm of two gases into percentile?

07 April 2016 3,509 4 View

Can anyone tell me, what type of etchant used to etch Al metal after lithography?

Plz mention name of company... to procurement..

01 February 2016 5,156 3 View

Can anyone tell me, is Aluminum/Pd show good adhesion on SiO2 without using any interface layer?

I have to fabricate some devices without using Cr/Au..

05 January 2016 1,149 7 View

Can anyone suggest to me an appropriate technique to functionalize single layer graphene film?

Actually, i have no idea about the concentration of acids, if i adopt chemical route.. And also no idea about physical route...

04 December 2015 8,316 5 View

Can anyone tell me, why raman bands occur 2000-2300 cm-1 in MWCNTs/SnO2 composite?

i have recorded this spectra on Renishwa by taking Si/SiO2 substrate... is it any noise?

30 October 2015 3,448 5 View

Why do 2G and D+G bands occur in Raman spectra of MWCNTs after functionalization and attachments of nanoparticles?

The intensity of D+G bands increase after the functionalization of MWCNTs

15 September 2014 9,482 2 View

Why do MWCNTs behave as p-type semiconductors in H2 atmosphere, although they previously behaved as a metallic?

Why does it transform into a p-type semiconductor?

10 June 2014 9,001 1 View

What is the basic mechanism of H2 sensor for p-type nanoparticles (Cu2O and NiO2) attached MWCNTs at room temperature conditions?

According to literature, MWCNTs act as p type semiconductor in H2 sensor, but when p-type nanoparticles attached on these it behaves more like p-type.

29 April 2014 3,205 1 View

Can anyone tell me why a D+G band appears after functionalization of CNTs?

It may be due to defects.

04 April 2014 3,435 4 View

Can any one tell me why the electrical current of metal decorated nanotubes is increased?

Is density state increased?

25 October 2013 9,112 4 View

What type of a curve do we obtain when we take I-V data of MWCNTs with higher temperature?

An exponential curve between temperature variation and in resistance?

17 September 2013 4,576 1 View

Can someone suggest a conductive mechanism of nanotubes?

On electrical basis.

05 September 2013 7,630 3 View

What is effect of impurities or functionalization on the pi system on CNTs?

Electrical point of view...

03 September 2013 4,750 2 View

Why do we do analysis of raman red shift in terms of doping?

Why do we do analysis raman red shift in terms of doping?

14 December 2012 1,377 4 View

for knowledge enhace in nanophysics

hello sir

29 July 2011 5,435 2 View