Why must the TCO layer be thicker?

11 November 2013 1 9K Report

In N-I-P or P-I-N single junction solar cells, top and bottom TCO should be thicker in comparison to N-I-P individual layers. Is there any additional reason for this except surface diffusion?

Vladimir I Chukharev

They must not. Just one usually selects TCO by low enough sheet resistance, and that is achieved with something like 50-100nm thick ITO or FTO.

And what do you mean by surface diffusion in here?

Badges
Science topic

More Ramakrishna Madaka's questions See All

What is the significance of 'dark spectral response'?

Can anyone explain me the significance of ''dark spectral response'' or " Dark EQE" of solar cell and how it will help to improve the efficiency of solar cell?

03 April 2019 7,950 7 View

What is the difference between the Granular growth and Columnar growth?

what is the main difference between the growth mechanism of Granular and Columnar growth in microcrystalline silicon thin films?

04 May 2016 9,812 0 View

How can I create periodic texture on flexible substructures like polyimide (PI), PET?

I would like to create periodic texture structure on flexible substrates like Polyimide (PI), polyethylene terephthalate (PET) for multiple reflections of light. Can anyone suggest, how can I...

02 March 2015 6,933 6 View

In a-Si:H, are dandling bond defects present in thermal equilibrium conditions in the material identical to DB defects formed by optical degradation?

See above

07 August 2014 9,510 3 View

Can someone tell me how to etch polyimide substrate (Kapton) and will it dissolve in any solution?

I have this amorphous silicon, a-Si:H, film I want etch it from polyimide and I want to know how to approach it.

06 July 2014 3,791 7 View

What is the exact difference between photoelectric effect and photovoltaic effect?

In both cases electrons are ejected from the outer shell. Can anyone give me a clear explanation of the differences between the two?

03 April 2014 6,337 10 View

Why defect density of states have Gaussian distribution in a-Si:H?

In hydrogenated amorphous silicon why density of defect states following Gaussian distribution function and band tails are exponential distribution?

03 April 2014 9,869 5 View

How does silane flow rate depend on the thickness of the sample?

I have deposited a-Si:H films by PECVD, as increasing the silane flow rate (SFR) & process pressure(PP), the thickness of sample decreases upto certain SFR& PP, again thickness increased as...

02 March 2014 1,832 0 View

Why are band tails exponential nature in amorphous materials?

In crystalline materials the conduction band (C.B) and valence band (V.B) are parabolic nature and has a sharp mobility edges. In amorphous case the sharp edge disappears because of defects but it...

02 March 2014 5,549 7 View

How does current density vary with respect to i-layer thickness?

I have read one journal where it states that with the thickness of the i-layer (0.5, 0.8,1, 2, 2.5 microns), the current density initially increases up to 1 micron and gets saturated. What is the...

31 December 2013 3,429 4 View

Why does blocking with my immunogenic peptide cause nuclear fluorescence in ICC?

Hi all, I am validating a polyclonal antibody raised against human ANT4, through WB and ICC. In most of my controls, the antibody shows very little off-target binding, but when I pre-incubate the...

03 March 2021 5,999 3 View

Why can't make aluminum nitride film successfully by use sputter?

We use reactive sputtering process to make aluminum nitride film, and want to make c-axis aluminum nitride film on a silicon substrate, but the crystal orientation cannot be seen with...

03 March 2021 7,975 3 View

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 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

Does Napabucasin soluble in dichloromethane and in ethanol?

I need to prepare a solution of Napabucasin (inhibitor of cancer cell stemness) in dichloromethane. The drug is expensive, so maybe somebody already tried to do it. If it is soluble, what is the...

02 March 2021 9,945 3 View

Help request in CST microwave?

im working now on TPV solar cells and metamaterials and i realy need our help in CST microwave i have a tpv cell simulation and i want to extract particullarly the absorbtion of only the active...

02 March 2021 2,246 2 View

Anyone found any research papers on solar furnace design calculations (for solar concentration)?

I am thinking about working on solar furnace with heliostats that concentrate sunlight and heat molten salt, but currently no luck with research. Not a lot of papers based on the subject. (check...

01 March 2021 5,023 5 View

How to check the uv-vis absorption of nanoparticle by surface plasmon resonance?

I try to check the uv-vis absorption of Indium nanoparticle. Now I am measuring in solution, can I measure it in the form of a film?

01 March 2021 930 3 View

How to size battery banks?

I am designing a small grid connected solar PV power-plant. As the battery's capacity is specified in Ah and demand in kWh. What is the best way to size the battery bank? I have battery price in...

28 February 2021 1,638 3 View