Solar Energy, Photovoltaic System, Solar Cell, Photoelectric Effect, What is it?

This video represent complexity of Solar Energy, Photovoltaic System, working principle of Solar Cell and Photoelectric Effect in a simple and understandable way.
From Solar energy through solar panel and solar cell towards home applications powering
www.chrvojeengineering.com/pos...
Solar Energy (00:08)
Solar energy is the most abundant permanent energy resource on earth and it is available for use in its direct (solar radiation) and indirect forms (wind, biomass, hydro, ocean etc.)
The sun emits energy at a rate of 380 sextilion kW every second
Photoelectric Effect (01:53)
When sun or light shines, it emits particles call photons, this photons are massless, and if photons hits one of the electrons, and if photon has enough energy, it can free the electron, as a matter fact it will knock it loose electron from outer orbit of silicon atom with some velocity and in some direction. This electron become negatively charged free electron called photon electron.
In electronic sheath of silicon atom a hole emerges, and whole atom of silicon become postively charged, because, after photon hits electron, in atom, we have 14 protons and 13 electrons, with simply math there is more protons who are positevly charged.
Solar Cell (04:59)
Solar cell is constructed from this parts N-layer, P-layer, Metallic conductors, Module encapsulate, glass cover, Back Sheet.
Role of Solar cell is to produce electric current from solar energy.
N-layer (06:21)
In a process called "doping", impurity atoms are placed in very pure silicon to change the electrical characteristics of the crystal. Phosphorus can replace some of the silicon atoms in the crystal and when this happens the phosphorus atom is called a dopant
atom.
P-layer (07:35)
Boron, with five protons and five electrons, can also substitute in a silicon crystal where
a silicon atom would normally reside. Because a boron atom has only three electrons
available in its bonding shell, only three covalent bonds can be formed between a boron
atom and the silicon atoms in a crystal.
P-N Junction (10:27)
P-N Junction or depletion region is made when N-layer and P-layer connect together, and when electrons try to fill holes in entire volume. Most Solar cells are large area of P-N junction
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Create: Hrvoje Čočić
Category: Education
Music: Supreme
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[@irpeterlu9547]

It's absolutely imformative, excellent video presentation

[@bluestar2253]

One of the best explanations on the physics of solar cells! Thank you!

[@chrvoje_engineering]

Thanks for nice feedback

[@stenben4806]

I’ve been looking for an explanation like this for the longest time. You sir, are a great contribution to physics

[@chrvoje_engineering]

Thanks, that is nice feedback

[@UBEnergy1872]

Finally a video that is helping me understand the photo-electric effect and the manner in which the PV cell works. Thanks. Just wish the voice was less 'automated'.

[@chrvoje_engineering]

Glad it helped!

[@varunlover]

Great

[@chrvoje_engineering]

Thanks

[@meesumashary959]

wow, a real physics lesson from the Great Dr. Steven Hawkings

[@chrvoje_engineering]

Thanks, consider to support me on pateron:www.patreon.com/chrvojeengineering , or share on social media, thanks again

[@maglumura6222]

thanks a lot...

[@chrvoje_engineering]

Thanks please share, like and watch res of my videos

[@armandomicelli4518]

Excellent

[@chrvoje_engineering]

Thanks, please watch, share rest of my videos

[@christopherpersaud4035]

best explanation ever

[@chrvoje_engineering]

Thanks

[@isaacprosper6295]

THE NARRATOR VOICE IS "UNBEARABLE" BUT THE CONTENT IS GEM

[@chrvoje_engineering]

Thanks for feedback

[@BlindGardener]

only thng I don´t understand is why the electrons when transfered back to the p junkcton do not fill the holes but wander upstairs again.

[@stanisawsamoniuk4880]

When you connect the p-layer and n-layer together electrons from n-layer are diffusing to p-layer and holes from p-layer to n-layer(10:44). So now, because electrons 'migrated', the n-layer has more protons than electrons and it becomes positively charged. Similarly, because those holes 'migrated' from the p-layer it has now less protons than electrons(more electrons than protons) and it becomes negatively charged. So when photons hit the electrons from p/n-junction, those electrons are naturally flowing to where the positive charge is(n-layer).

[@keshaborja8564]

Try some new solutions from Avasva solutions.

[@riaz951]

Fights between relations is due to negative hypnosis

[@sonujanny8546]

how much intencity mean sunlight want

[@chrvoje_engineering]

I dont understund question

[@nicolet.4148]

ur voice drives me mad but good explaination

[@chrvoje_engineering]

This is Robotic voice i next my video I will use natural voice so :)

[@riaz951]

Negative hypnosis on human effect

[@serdarbalikci]

we want turkısh subtitles

[@chrvoje_engineering]

Can you make turkish subtitles? i will put, im not expert for turkish, HEHEHE

[@amberkerr2333]

The narration on this video is unbearable. It seems to be done with a text-to-speech synthesizer. It sounds nasal, poor-quality, robotic, and it mispronounces important words (for example, it pronounces "Joules" as "Jowels" instead of "Jewels"). Argh!

[@ducktective7520]

Amber Kerr that isn’t the worst part of all this. It doesn’t flow and is grammatically incorrect in every other line.

[@justcontent8467]

Photons are particlewaves and they are not massless

[@chrvoje_engineering]

photon has zero rest mass

[@yaoooy]

Light is transverse EM waves not particles. Energy of a photon is hf where f is frequency. Frequency is a property of waves and not of particles. Light EM waves behavior explains why electrons travel at 90 degrees with the incoming axis of the light wave because this is a property of transverse waves

[@riaz951]

Hypnosis you can't escape???????

[@chrvoje_engineering]

?

[@saintg4fun829]

Beetwen... lol

[@fatiheneskuru4332]

When an educational video sounds like memenade i can't take it serious and do expect some humourus thing to punch me.

[@saltygoose2943]

Why the weird robot voice 👎!?

[@chrvoje_engineering]

I agree

[@emmmaaa23lp36]

👎👎👎👎👎👎👎👎👎👎👎👎😂👎😂😂😂😂😂👎