How to measure I/V on a polymer thin film solar cell?

I have prepared polymer solar cell on a ITO coated glass with the area of around 1 inch2. I am using four probe set up with sun simulator. The problem is when I am applying probes to the top...

10 November 2017 2,836 5 View

Is there any chemical etching agent which etch Silicon but do not react with Aluminum or ITO ?

I am working on Si thin film solar cells and to expose back electrode, I need to etch some Silicon out of it. Some silicon is also deposited on the sides of glass substrate which also needed to be...

10 November 2017 1,023 3 View

What could be the possible reasons responsible for poor fill factor in Si thin film solar cells?

I am working on Si thin film solar cells. I got voc of near 500 mV and Isc of about 25 mA/cm2 but with the fill factor of about 19 % only. Aluminum was base electrode and TCO was the front...

10 November 2017 1,253 13 View

If we have a p-i-n structured silicon solar cell with the thickness of about 40 micron, then can we call it thin film or bulk?

08 September 2017 5,410 8 View

Can anyone tell me how to analyze kikuchi lines obtained from TEM of thin film samples

I did TEM of thin film of Si on a glass substrate. The SAED pattern of the same has kikuchi lines. The study was done in simple diffraction mode without tilting sample. Please help me study...

07 August 2017 3,456 3 View

How to see dislocations in HRTEM image??

04 May 2017 186 5 View

Does any theory available to explain halting of grain growth in nanocrystalline thin film while sintering after a minimal growth?

03 April 2017 9,514 4 View

Is annealing necessary in case of silicon thin film solar cells before I/V characteriation?

I have sprayed silicon solar cells (p-i-n) on a glass substrate. The sprayed films are not stable and can be removed easily by touching it. I think I need to go for annealing of the films but I...

04 May 2016 4,815 8 View

How do I calculate effect of instrumental, shape and strain effect on FWHM to calculate crystallite size?

11 December 2015 5,690 2 View

I noted reduction in grain size of Silicon thin film after sintering at 700 C compared to un-sintered Silicon powder. How is it possible? reference?

Grain size is calculated using deby-scherrer formula.

09 October 2015 1,759 6 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 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

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

What are the new 2D nanomaterials were used for Silver nanoparticles stabilization?

In the stabilization of AgNPs are vital in current research interest. However, some of the 2D nano-materials like graphene oxide, MoS2, etc... previously used to stabilize it. But still they shown...

01 March 2021 2,207 3 View

Apart from Nanosilica and CNT's what are the other nanomaterials readily available to use in concrete mixture?

Nanotechnology in concrete materials

01 March 2021 3,379 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

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

How to design a boost converter for a mppt controller?

I have a doubt on how to select the inductor and capacitor value when I want to implement MPPT controller. This is because we always take a maximum output voltage and current but in this case, we...

28 February 2021 3,637 2 View