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Questions related from Firoz Khan
When I try to simulate perovskite solar cells using SCAPS 1D then found a conversion error for the NiOx HTL layer. How to solve this issue?
17 October 2022 2,930 7 View
I have used simulation parameters from the published papers for cell structure Au/Spiro-MeOTAD/CsFAPbI3-xBrx/SnO2/FTO but the curves are bending for various thicknesses of HTL. Also, in some...
17 October 2022 1,008 0 View
I want to simulate the current contribution in the perovskite solar cell using photon upconverters and downconverters (as attached file). Which software is suitable for this type of simulation? Is...
09 May 2021 8,696 3 View
I have synthesized Al and Ag-doped ZnO. How can I get a quantitative fraction of the Al, Ag, Zn, and O? For example the final product is AgxAlyZnOz. Then how to find values of x, y, and z using...
01 May 2021 7,972 7 View
I have synthesized various kinds of perovskite materials. I want to draw the crystal structure of the perovskite materials using XRD data. Which softer can be used for this purpose?
18 March 2021 9,530 8 View
I want to calculate the temperature of the solar collector (cylindrical type mounted on a pillar) with the different tilt angles of solar reflectors. There are 12 flat or paraboloid reflectors,...
05 November 2020 3,654 4 View
In the Nyquist plot of an EIS measurement, sometimes the length of the linear part at low frequency is very large, sometimes length is short. What it's significance. Even the circle dia, Rs value,...
22 September 2020 5,302 9 View
I have measured charge-discharge capacity at 0.2 of pure Li4Ti5O12 (LTO) and modified LTO (LTO-N) as shown in the attached Figure. I both the cases, the discharge capacity is higher than charge...
18 February 2019 4,655 0 View
I want to prepare, anode for Li-ion battery using silicon nano particles and nanocomposite with graphene. Which solvent, binder, and conducting materials should be used for good performance? What...
06 December 2018 9,757 3 View
Generally, in inorganic solar cell (eg, Si), if number of grains increases, the open circuit voltage decreases due to increase in the recombination losses of charge carries at grain boundaries....
23 September 2018 8,286 3 View
Why the angle between imaginary part of impedance (Zim) and real part (Zre) of impedance in low frequency region should be 45 degree for Li-ion battery and it should be 90 degree for capacitor? If...
20 July 2017 4,913 19 View
I synthesized reduced graphene oxide and used AFM for thickness measurement but it shows non-uniform thickness. How can I calculate the thickness using XRD?
28 November 2015 522 4 View
I fabricated perovskite solar cells with FTO+TiO2+PbI2+Ch3NH3I+spiro-MeOTAD+Au, the obtained Voc is about 800mV but current (1mA/cm2) and FF (35%) are very low. What is the actual problem? How it...
12 November 2015 6,431 3 View
I prepared a transparent conducting materials, it is a highly absorbing light nearly at 380 nm, so it is difficult to evaluate its band gap. Is there another technique available to find out the...
30 October 2014 593 5 View
