Rekha Bai

40 Questions 11 Answers 0 Followers

Questions related from Rekha Bai

What type of materials doping is possible to enhance the conductivity of cadmium selenide (CdSe) films by electrodeposition?

As-deposited CdSe films have very high resistance.What materials doping can be used to increase the conductivity?

02 February 2015 9,863 7 View

How to prepare the solution for ternary CdSexTe(1-x) thin films??

Can anyone explain in brief how to prepare the solution for ternary CdSexTe(1-x) thin films e.g. CdSe(0.6)Te(0.4) thin film?

10 October 2014 9,938 2 View

How do PbS nanoparticles in CdSe matrix lead to better absorption in solar cell?

How solid solution of CdSe/PbS leads to optimum band gap?

09 September 2014 7,327 2 View

Please can someone suggest an Indian manufacturer of Reference electrodes (e.g. SCE,Ag/AgCl etc.) for the purpose of electrodeposition?

Ca anyone suggest some Indian manufacturers of reference electrodes e.g. SCE or Ag/Agcl for electrodeposition purpose in aqueous electrolyte. I have references of some companies outside from India...

04 April 2014 4,281 1 View

Can anyone suggest a reference electrode for electrodeposition?

Can anyone suggest a reference electrode for electrodeposition in aqueous solution? Which one is better between a Saturated Calomel Electrode (SCE) and an Ag/AgCl reference electrode?What is the...

04 April 2014 9,899 22 View

Can anyone help with the deposition of ZnO/SnS heterostructure by electrodeposition?

How much feasibility of electrodeposition of SnS layer on electrodeposited ZnO nanostructures to form the ZnO/SnS heterostructure? What is the future scope of this type of heterostructures for...

04 April 2014 4,051 5 View

Can anyone suggest a good reference electrode for electrodeposition technique?

I want some information regarding reference electrodes e.g. SCE or Ag/AgCl of various companies and of which supplier should be in India and cost should be less than Rs.15000.

04 April 2014 4,509 3 View

How can we trap more light in nanostructures than thin films in solar cells?

Light trapping.

01 January 2014 4,503 1 View

Can anyone tell me why the band gap of the material for high efficiency solar cell should be around 1.5eV?

01 January 2014 7,293 5 View

How can we decide the thickness of absorbing layer in thin film solar cell?

On which parameters does the thickness of absorbing layer depend?

01 January 2014 1,385 3 View

How can we reduce the optical losses by nano-structuring in thin film solar cell?

Optical losses.

12 December 2013 7,522 1 View

Can anyone explain the difference between annealing, sintering and calcination?

12 December 2013 9,063 3 View

How can we determine the texture and strain in films from XRD?

I want to know the difference between orientation and texture of the film.

12 December 2013 1,932 6 View

What will the XRD pattern of oriented film, polycrystalline, and powdered sample look like?

12 December 2013 3,818 2 View

Can anyone help with sensitization of ZnO nanorods by CdS nanoparticles?

I have electrodeposited ZnO nanorods on ITO. Now I want to deposit CdS nanoparticles on these by electrodeposition. But I am confused what is the actual role of ZnO nanorods in ZnO/CdS core-shell?...

12 December 2013 4,779 1 View

What is the role of quantum dots and surface plasmons in high efficiency solar cells?

Please explain in detail.

12 December 2013 5,510 2 View

Can someone explain the mechanism of a tandem solar cell?

How does the voltage drop across each junction in tandem solar cell play their role? and why the band gap should be in decreasing order in these? How the Voc and Isc depends in these cells?

12 December 2013 3,867 1 View

What is the difference between TEM and HRTEM?

Can someone explain the difference between TEM and HRTEM? When do we have to use TEM and when HRTEM?

12 December 2013 9,450 20 View

What's the difference between GAXRD and Gonio mode of XRD?

Which one is better and how?

11 November 2013 4,211 8 View

Why the working electrode surface must be conductive in electrodeposition?

I am using ITO for deposition.

11 November 2013 773 5 View

What is the actual role of ZnO, ZnO/CdS and ZnO/metal/CdS layers in CdTe or CIGS solar cells?

Why?

11 November 2013 5,859 1 View

What is best way to clean the ITO substrate for electrodeposition?

People use different method to clean ITO.

11 November 2013 771 3 View

How does Zinc oxide (ZnO) act as buffer/Contact layer in CuIn(S,Se)2 and CIGS solar cell devices?

I want to know the role of ZnO in these solar cells. I am confused as to how it acts as a Buffer/Contact layer.

10 October 2013 7,445 7 View

What is the relation between film thickness, bandgap and refractive index?

10 October 2013 8,328 6 View

What are the most critical points during synthesis of cubic phase of cadmium sulfide (CdS) thin films by electrodeposition?

I am using ITO coated glass as substrate .I want the cubic phase of CdS rather than hexagonal phase by using electrodeposition. Can anyone give some suggestions?

10 October 2013 2,744 1 View

Can anyone suggest to me a suitable reference electrode for electrocution?

I want to get information regarding better reference electrode and which is of low cost.

09 September 2013 1,537 4 View

Can we find the thickness of film from XRD peaks? If yes then how?

I want to know thickness of electrodeposited ZnO film from XRD data.

09 September 2013 6,469 5 View

Can anyone suggest how to analyse SEM micrograph images?

Is there any software to analyse SEM images which is freely available?

09 September 2013 2,271 17 View

Can anyone suggest some good recent articles on chemical bath deposited(CBD) CdS, in which ammonia free complexing agent is used?

Because ammonia is toxic. Also any suggestion on the procedure of CBD deposition?

09 September 2013 3,046 1 View

How can one get the current density and charge (Q) from I-t curve (chronoamperometry) in electrodeposition?

From chronoamperometry how to calculate charge flow?

09 September 2013 5,644 1 View

Can anyone suggest to me a suitable etchant for cds electrodeposited on ITO?

I have deposited cds on ITO by electrodeposition. Now I want to create sharp step in film for profilometry measurement (thickness). So I want to know how to create sharp step in film either during...

09 September 2013 9,104 2 View

What are some suggestions for good precursors (with concentration) for Cadmium sulfide electrodeposition?

It may be some good paper on cds electrodeposition.

09 September 2013 4,356 1 View

What is the actual role of reference electrode and counter electrode in 3-electrode system in electrodeposition?

Also want to know how 3-electrode system is better than 2-electrode system.

09 September 2013 327 13 View

Can anyone suggest some information on the photoelectrochemical (PEC) measurement of electrodeposited cadmium sulfide (CdS) and Zinc Oxide(ZnO)?

I have electrodeposited CdS and ZnO films.please suggest me good paper on PEC measurement of these films.

09 September 2013 4,495 1 View

Can anyone suggest some review papers on electrodeposition of CdS thin films and CdS/CdTe solar cell?

Seeking literature on the topic

09 September 2013 8,339 2 View

How to find out the absorption coefficient from Absorbance(A) vs. Wavelength graph without having the thickness of the film?

I also want to know how to calculate the thickness of the film from fringes of the Transmittance or Absorbance spectra.

09 September 2013 9,025 10 View

Can anyone suggest me how to create step in film during electrodeposition for profilometer measurement(thickness)

I have deposite the CdS films on ITO coated glass substrate. I have tried alot but i am not able to create sharp step for profilometry.

09 September 2013 6,999 5 View

Can anyone suggest me novel semiconducting materials for the applications in photovoltaics, which can be deposited by electrodeposition technique?

09 September 2013 8,060 2 View

From electrodeposition of cadmium sulfide(CdS),which phase of CdS is expected to grow (i.e.hexagonal or cubic)?

I am confused about the phase of CdS during electrodeposition and chemical bath deposition.Please anyone clarify my confusion.

09 September 2013 8,548 2 View

Can we find out the chemical composition of thin films deposited by chemical root by any method other than EDX?

Thin films

09 September 2013 7,869 15 View