03 April 2020 6 2K Report

I would like to simulate a typical perovskite solar cell. I have found a lot of references for perovskite parameter values in literature. Does anyone have any reference so that I can get values for effective density of states of electrons/holes, tail slopes, capture cross section , electron affinity, etc? Thank you.

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Should I use higher centrifuge speed or my polymerization actually did not work?

One of my sample (NIPs-non-imprinted polymer) couldn't settling down after centrifugation (4000 rpm). Might be due to very fine particles. So what I did, I let the samples to evaporate under fume...

06 December 2020 3,344 3 View

What can explain the high desorption percentage when the desorbent is NaOH on a material that has adsorbed an anionic dye ?

Good morning to all of you Please, I need some help, After the adsorption of an anionic dye by an activated carbon at acidic pH, I studied the desorption phenomenon using NaOH, H2O and H2SO4 as...

18 April 2020 2,592 5 View

How does the current flow in the tunnel junction of dual-junction solar cells?

The dual-junction solar cell composed of two sub-cells would achieve a better conversion efficiencies, but how does the current flow in the tunnel junction P++/n++ withou current loss?

12 April 2020 3,573 6 View

What's the best way to connect two solar cells in series?

We can connect CIGS/Pyrovskyte solar cells with several ways to form tandem solar cell. But what's the best one of them? . thank you.

08 April 2020 7,662 3 View

What's the best way to reduce the carrier recombination at the back contact of solar cells?

P-type absorber material, an n-type material is mandatory for creating a good p-n junction. The heterojunction Absorber/Buffer cell requires a transparent conducting oxide (TCO) layer at the front...

05 April 2020 7,047 4 View

Can you tell me about the characterization methods to determine defects levels in the gap energy?

It's very important to determine the defects levels that impact on the solar cell performances, especially in the absorber part. We would like to know also the origin of this defects and their...

21 March 2020 4,938 7 View

How can I model & simulate quantum dote thin films using CASTEP with different tail parameters?

A QDSC solar cell design that uses quantum dots as the absorbing photovoltaic material. It attempts to replace bulk materials such as Si, CIGS, CdTe ... etc. Quantum dots have bandgaps that are...

16 March 2020 1,986 4 View

How I can simulate Quantum-well solar cells QWSC using silvaco?

I want to calculate the QWSC performance. The problem encountered is how to introduce the Quantum well in the structure . Can anyone suggest to me how can I simulate QWSC without any problem?...

07 March 2020 8,427 2 View

I need to know the best method to deposit Cu2SnZnS4 (CZTS) nanowires for solar cells?

Due to containing expensive rare metals of In and Ga, CIGS chalcopyrite materials have still not been fabricated as thin film solar cells on a large scale. Fortunately, another chalcopyrite...

29 February 2020 5,424 5 View

I need help on generating constraint for the development of a computer program for train running diagram , what are the basis?

Intend to use c++ programming if am able to generate the constraint , also I will appreciate suggestions on better software to use for the achievement of this aim.

24 February 2020 1,040 3 View

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