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

More Poshan kumar reddy Kuppam's questions See All

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 ?

08 September 2019 7,244 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...

02 March 2019 2,665 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...

01 February 2019 6,705 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

11 December 2018 3,089 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...

10 November 2018 5,889 0 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

05 June 2018 1,639 5 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...

03 April 2018 6,561 3 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

03 April 2018 6,213 1 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...

31 December 2017 3,608 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...

10 November 2017 1,189 2 View

Why does blocking with my immunogenic peptide cause nuclear fluorescence in ICC?

Hi all, I am validating a polyclonal antibody raised against human ANT4, through WB and ICC. In most of my controls, the antibody shows very little off-target binding, but when I pre-incubate the...

03 March 2021 5,999 3 View

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Does Napabucasin soluble in dichloromethane and in ethanol?

I need to prepare a solution of Napabucasin (inhibitor of cancer cell stemness) in dichloromethane. The drug is expensive, so maybe somebody already tried to do it. If it is soluble, what is the...

02 March 2021 9,945 3 View

Sutter electrode holder leaking after applying positive pressure. How to fix?

I am using a Sutter electrode holder for my patch clamp experiments, but I'm having trouble keeping positive pressure inside my electrode due to a leak out of the back of the holder. I have added...

02 March 2021 5,829 1 View

Help request in CST microwave?

im working now on TPV solar cells and metamaterials and i realy need our help in CST microwave i have a tpv cell simulation and i want to extract particullarly the absorbtion of only the active...

02 March 2021 2,246 2 View

What thickness need for ITO to use as conductive layer?

I want to do RF sputtering of ITO on glass substrate using magnetron sputtering. what thickness do i need to make it good conductive layer to use it for PSC. Moreover, whats about thickness of...

01 March 2021 395 3 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

Anyone found any research papers on solar furnace design calculations (for solar concentration)?

I am thinking about working on solar furnace with heliostats that concentrate sunlight and heat molten salt, but currently no luck with research. Not a lot of papers based on the subject. (check...

01 March 2021 5,023 5 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

Oday Hammadi

Ti/Pd/Al/Pd contact is the most efficient choice for such junction solar cells

Raid Ismail

I think the Ti-Au is a good Ohmic contact for Ge

Waqas Hassan Tanveer

Pd, Ti, Ru, Au , not nearly as noble but show promise as electrode materials

I think no other professor better than Dr. Raid Ismail can give you the solution. He has taught me the principles and fundamentals of semiconductors and optoelectronics.