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...

11 December 2018 6,256 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...

06 July 2018 7,500 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...

31 December 2017 9,249 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...

11 December 2017 7,600 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...

10 November 2017 739 2 View

What negative magnetic permeability means physically?

05 June 2016 6,855 7 View

Problem solving of Boyd nonlinear optics?

05 June 2016 7,573 0 View

Different colours of Ag nanoparticles?

05 June 2016 6,481 7 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

How Can I bring as much common elements in steel as possible to calculate stable phase(s) in OpenCalphad?

As I was tweaking step-by-step OpenCalphad6 Macros step1.ocm involving phase and thermal property calculation of a High-speed steel, I could not incorporate more than 6 elements in the steel...

01 March 2021 8,840 1 View

How can you bring two structures together to create an adhesive bond in LAMMPS?

I have created an Ice 1h crystalline structure and an Aluminium substrate structure and equilibrated both at 250K. Now I need to bring them together in a way that an adhesive bond is created....

01 March 2021 3,325 2 View

Could anyone tell me what is the range of submillimeter wave?

There is confusion regarding the submillimeter-wave range. Many papers specify its range from 300GHz but some also consider its range from 100GHz. If I design an antenna on 122ghz what would I...

01 March 2021 516 7 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View