Zahra Bagheri

9 Questions 5 Answers 0 Followers

Questions related from Zahra Bagheri

What is maximum temprature that triple provskite in solar cell can suffer?

if any researcher has tried to find maximum temprature which perovskite layer in solar cel can tolerate? As you all know, the colour of perovskite layer changes after some period of time being on...

12 December 2018 6,327 4 View

Why specular perovskite layer changed after gold coating ?

Dear all I had prepared almost specular mixed perovskite layers and they looked good even after HTL(spiro) deposition.... but after Au deposition the result was amasing......the colour of...

07 July 2018 7,564 3 View

What is optimum thickness for FTO substrate in fabrication of solar cells?

what is optimum thickness for FTO substrate in fabrication of perovskite solar cells? I mean it is better to choose thick FTO or thin one as a electroce in preparing cells? I know it may affect...

01 January 2018 9,330 2 View

Deposition of graphene oxide on negative electrode?

I know that the zeta potential of graphene oxide is negative.how negative charged graphene oxide nanoparticles can deposit on the negative charged surface ( as electrode in electrochemical...

12 December 2017 7,698 3 View

The reason of degradiation of open circuit voltage in perovskite solar cell?

I facing problems in characterisation of perovskite solar cells; during I-V measurment under solar similator, open circuit voltage fails suddenly....As i tried to measure current-voltage with...

11 November 2017 810 2 View

Problem solving of Boyd nonlinear optics?

Hi researchers Are there any problem solving for nonlinear optics book by dear "R.W.Boyd"?except the first two chapters, I couldnot find any guide to solve problems. can anyone lend me a helping...

06 June 2016 7,682 0 View

Different colours of Ag nanoparticles?

By using Mie Theory or ..., how can I make prediction about special colour of silver nanoparticles with different size? I would be greatly appreciated if anyone could help.

06 June 2016 6,673 7 View

When materials show nonlinearity?

Hi there....could anyone help me with a simple definition of nonlinearity of materials in classical viowpoint i??I mean, what measurable physical properties, a material should have to show...

06 June 2016 9,050 0 View

What negative magnetic permeability means physically?

Hi Dears, could anyone make me clear by giving information about materials that are capable to be invisibie in some frequencies ?especially I wanna know: what is relation between cloaking and...

06 June 2016 7,160 7 View