How do we reduce the nucleation of PCBM in P3HT:PCBM blend film in polymer solar cell?

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How can we deal with stability issues in pervoskite solar cell?

How to study the degradation?This is very unstable device

10 November 2016 6,825 1 View

How to check whether the active layer is good or not in pervoskite solar cell?

Actually we are making pervoskite solar cell in glove box but we are not getting photovoltaic effect. Could you please suggests the method to verify the active layer quality without device...

02 March 2016 3,381 2 View

How do I calculate work function from contact potential difference (Vcpd) in kelvin probe force microscopy (KPFM)?

I am doing the SKPFM of some sample. The scale bar ( nap potentail image) is giving the maximum and minimum value of Vcpd. I want to know whether the average value of Vcpd is equal to work...

05 June 2015 1,524 26 View

In a solar cell module, do the silver lines which are used as electrodes reflect incoming light?

Although it should, but do we really take into account their area while calculating efficiency because in that particular area no light is actually absorbed.

01 February 2015 9,577 6 View

What is the best thickness of Lithium Floride(LiF) in polymer bulk heterojunction? Does higher thickness of LiF reduce current?

I am depositing LiF(1.5 nm) as electron transporting layer in POlymer solar cell (P3HT:PCBM as active layer). I want to know what is the effect of higher thickness of LiF in polymer solar ...

11 December 2014 4,742 4 View

Why is the short circuit current calculated from EQE measurement different to Jsc from I-V measurement? Could it be corrected?

I have calculated Jsc from EQE measurement which is almost 1mA/cm2 less than normal Jsc measured from solar cell I-V data. Could anyone help to correct it. I will be very thankful.

11 December 2014 1,981 15 View

How can I calculate internal quantum efficiency (IQE) from EQE in a polymer bulk heterojunction solar cell?

I want to calculate the IQE from EQE. I have all data absorbance as well as EQE. I also want to know what exactly purpose of IQE in solar cell.

08 September 2014 3,053 8 View

How do you check the performance of P3HT:PCBM film for device fabrication without making polymer solar cell?

I am working on printing of P3HT:PCBM film for solar cell application. I want to check whether the active layer will work or not, without making device. I am doing characterization like UV-Vis...

08 September 2014 9,559 5 View

How can I calculate short circuit current(Jsc) in polymer bulk heterojunction solar cell from external quantum efficiency?

I want to calculate Jsc from EQE and want to match with Light I-V data. Could you please suggests the method?

08 September 2014 6,605 4 View

How do you reduce the de-wetting of P3HT:PCBM solution on ITO coated substrates?

I am making P3HT:PCBM film on ITO coated substrate but I am getting the film with small particles over the surface(see attached pic). Is it due to dewetting or due to non-mixing of P3HT:PCBM? Is...

06 July 2014 3,711 1 View

• What the possible Persistent Organic Pollutants and Heavy metals present in fluorspar, sediments, and water bodies around its mining area?

Approximate concentrations are require in compared with the WHO permissible limts

11 August 2024 2,723 1 View

Which type of compound does lamda max of 218 indicate in a uv-vis spectrum of a partially purified compound through column and TLC?

A crude extract of fungal culture using EtOH was subjected to column and TLC and partially purified compound was obtained. UV vis spectrum of the compound/s has max absorbance at 218nm. The...

11 August 2024 9,801 2 View

Basis set and input instruction to calculate HOMO and LUMO using Orca for Imidazolium based organic salts?

Hey there, As a synthetic chemist delving into theoretical calculations for my imidazolium-based organic molecules, I would greatly appreciate any guidance on the appropriate input instructions...

09 August 2024 5,444 7 View

Is there any way to quantify bacterial and fungal cells in their mixed culture?

I am working in fungal fermentation of soybean meal and there is bacterial growth in them at times. I am trying to quantify fungal cell counts and bacterial cells; but I haven't been able to do at...

07 August 2024 7,535 4 View

Stability of the Solar System: Insights from Einstein’s Equations ?

The stability of the Solar System is a complex subject that blends the classical framework of Newtonian mechanics with the modern insights provided by General Relativity (GR). Understanding this...

07 August 2024 2,569 1 View

Separation of organic acids-HPLC?

Hello What should be done to separate and identify organic acids in HPC when their RetTime is the same?Like oxalic acid with Propanoic Acid.or acids that have a very close RetTime.

07 August 2024 8,782 3 View

Why activated CAR-Jurkat cell could not kill targets?

Previously when I co-coluture anti-CD19(FMC63) CAR-Jurkat with Raji with E:T=5:1, Jurkat can eliminate Raji in 24h. However, when I test another CAR construct, although I can dectect totally CD69...

06 August 2024 641 2 View

Why does my protein refolded to beta sheet during thermal denaturation analysis?

Hi! So i attempted to understand a novel protein behavior towards heat application by analyzing its secondary structure change. I subjected the protein to a thermal denaturation analysis using...

06 August 2024 1,989 3 View

How can I measure the thickness of thin film by Uv-Vis?

06 August 2024 7,810 3 View

How much total RNA concentration to be extracted from sorted plasma cells from bone marrow of C57BL/6 mice for RT-PCR ?

i have sorted anti-NP specific plasma cells from bone marrow of C57BL/6 mice at certain times after immunization with variable counts and isolated total RNA using TRIZOL method for RT-PCR using...

05 August 2024 8,835 1 View

How can we deal with stability issues in pervoskite solar cell?