Poshan kumar reddy Kuppam

14 Questions 4 Answers 0 Followers

Questions related from Poshan kumar reddy Kuppam

Why i am not able to see photoluminescence signal using transfered MoS2 on to the FTO substrate?

i transfered mos2 on to the FTO substrate .when i check XRD and Raman i got cleared peaks where as in photoluminescence i did not get any peaks may i know what is main reason ?

09 September 2019 7,262 2 View

Can any one suggest why Mo(molybdenum) metal work better for oxygen evolution?

I saw some publication where Mo with different alloys are good for HER or OER ..? in my case with bare Mo substrate we are getting a better result ? is there any reason special reason like it...

03 March 2019 2,677 5 View

What are different ways to make Titanium nitride thinfilm into nanoparticles ?

Can any one suggest me is it possible to make 10 nm Titanium nitride thinfilm into nano particles or nano islands using annealing process at lower temperature or please suggest me any route to do...

02 February 2019 6,721 4 View

Is it possible to transfer a 50nm metal oxide loaded on graphene to nickel foil ?

Can any one suggest me .how to transfer 50nm deposited metal oxide( example wo3 ) on graphene from foil to another foil without damaging metal oxide

12 December 2018 3,105 3 View

Can any one suggest me electron flow from sticked solar cell electrode to FTO substrate ?

recently i am trying to do solar cell based water splitting experiment .i am using p-type based substrate .Due to limited size of solar cell . i need to stick solar cell to FTO substate .solar...

11 November 2018 5,901 0 View

Can any one suggest best ohmic contact for P-Ge?

I am working on III-V junction solar cell based water splitting .in my case i don't want to use noble metals as a back electrode(ohmic contact ) .can any one suggest me best earth abundant...

10 October 2018 8,866 4 View

How to find perfect thickness of a semiconductor for maximum absorption in photoelectrochemical cells ?

I want to deposit Al203 on SI and FTO substrates .is there any way to find perfect thickness of the Al203 for maximum absorption on SI and FTO in case of photoelectrochemical cells

06 June 2018 1,651 5 View

How to control formation of sio2 on SI ?

I am trying to deposit a semiconductor layer on silicon by mocvd and sputtering.the main problem for my experiment is formation of sio2 .how to control the formation of sio2 .? In both techniques

04 April 2018 6,224 1 View

Why in photoelectrochemical cells P type silicon is thicker and N-type material is in nanometer is it because of diffusion ?

I read many papers recently related to photoelectrochemical cell papers on P-type silicon substrtate they had grown on n-type SrTio3 or Al203 below 10 nanometers.the Papers are suggesting to...

04 April 2018 6,575 3 View

What is main difference between deep donor,deep traps and shallow donor ?

genearlly in metal oxides there will be formation of oxygen vacancies which act as deep donor.some publication suggest to add shallow donor to overcome this issue .? may i know what is the main...

01 January 2018 3,636 2 View

Why seed layers are used for gas sensors ?

I saw in some publications .they will grow a seed layer on the top of si/sio2 .example si /sio2 / zno seed layer /sno2 nano wires for No2 application . As per my knowledge zno is good for No2...

11 November 2017 1,201 2 View

If the device has no conductivity and has more resistivity is it useful for gas sensing applications or photocatalysis ?

If the metal oxide has no conductivity and has more resistivity is it useful for gas sensing applications or photocatalysis ? I tried for gas sensors application using si/sio2 on it I had grown...

11 November 2017 1,047 5 View

Can any one suggest Titanium nitrate nanoparticles synthesis for lspr application ?

Can anyone suggest me best method for synthesis of Titanium nitrate nano particles for lspr applications ?

03 March 2017 6,893 1 View

Which is the best conducting substrates provide path ways for efficient charge transport during the electrolysis other than ti foil ?why ?

i am searching for best conducting substrate other than ti foil .can any one suggest for hydrogen evolution application

10 October 2016 894 0 View