Jeeva Sivagami

9 Questions 11 Answers 0 Followers

Questions related from Jeeva Sivagami

Why does the TiO2 thin film derived from sol of TTIP (Titanium tetraisopropoxide) is getting peel off after driying?

TTIP was used to form the Ti-sols at room temperature. Deposited thin films on glass slides were producing cracks and getting peel off after air drying. What may be the reason for immediate...

03 March 2017 8,597 4 View

How to calculate the vapor pressure of S?

For sulfurization process , controlling the vapor pressure of S is important.How does it vary with temperature and amount of S, how to calculate the vapor pressure of S using ideal gas law..

07 July 2016 6,141 9 View

Can anyone suggest me how the photoluminescence intensity can be explained for solar cell applications?

PL intensity will explain the type of recombination occurring in materials. How do we confirm the increase in intensity will enhance the radiative recombination?

04 April 2015 1,829 6 View

Can anyone suggest to me why does the absorbance range of same material differs for powder and thin film?

I'm working on CuInS2 ternary compound. Material synthesized using solid state melt growth method is confirmed by XRD and it has only CIS phase but still DRS results taken for CIS powder having...

02 February 2015 3,922 5 View

What is the reason for pinhole creation in deposited film?

Thin film of CuInS2 deposited by thermal evaporation method. Initially the film was pinhole free. After few hours pinholes created in film and the no. Of pinholes keep on increasing even though it...

02 February 2015 3,531 6 View

How nanoparticles of Cu based Ternary compound is being well suited absorber layer in solar cell?

Hi, I'm working in thinfilm solarcells.can anyone tell me how absorber layer deposited from nanoparticles are having better absorption than prepared from normal precursor materials?

11 November 2014 7,198 6 View

How can one calculate tetragonal distortion factor from XRD?

I find the XRD pattern of my material reveals tetragonal structure. For this structure how can the lattice parameters and tetragonal distortion be calculated? Is there a formula for calculation?

10 October 2014 1,297 8 View

Which is a very suitable method to synthesize nanoparticles of single phase with controlled size and shape for thin film solar cell applications?

With the idea of developing a defect free film .

09 September 2014 9,009 3 View

What is the significance of synthesizing nanoparticles in thin film solar cells?

Currently, thin films from nanoparticles are widely used in solar cells. What are the other properties that can be improved to improve solar cell efficiency?

09 September 2014 1,718 2 View