Recent Posts

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Solar Power / Re: Transparent solar panel
« Last post by ProBang2 on June 25, 2018, 01:47:16 AM »

I have heavy doubts about an economic useful transparent solar cell. Why?

Because of the photovoltaic effect. (Yes- the theory whatfor Albert Einstein earned the Nobel price!)

Electrons can absorb energy from photons when irradiated, but they usually follow an "all or nothing" principle. All of the energy from one photon must be absorbed and used to liberate one electron from atomic binding, or else the energy is re-emitted. If the photon energy is absorbed, some of the energy liberates the electron from the atom, and the rest contributes to the electron's kinetic energy as a free particle
(from Wikipedia/photovoltaic effect)

[...] electrons are dislodged only by the impingement of photons when those photons reach or exceed a threshold frequency (energy). Below that threshold, no electrons are emitted from the material regardless of the light intensity or the length of time of exposure to the light.
(from Wikipedia/photovoltaic effect)

Conclusion: There are photons with a certain amount of energy => a specific frequency involved.
If they are involved, then they will be absorbed from an electron.
It might be well possible to use a material for the solar cell which is transparent at the visible
spectrum of light and uses an other part of the spectrum.
But the visible spectrum of light is even the part where the sunlight has the highest power.
Why should anyone waste this power? Is it sounding anyway economical? Or anyhow efficient? 

(from Wikipedia/Sunlight)
Solar Power / Re: Transparent solar panel
« Last post by Vandiver on June 23, 2018, 10:01:48 AM »
This is a great idea. I've not heard about transparent solar panels but I've heard they're being worked on. Not sure if they exist on the market though.
Tutorials, lessons and courses / Re: Assignment Help Australia
« Last post by WilliamRiley on June 14, 2018, 06:23:52 AM »
I am also serving an outstanding academic help and successfully helped thousands of university students with pass guarantee.
YouTube Video Episodes / Re: The GPS Disciplined Crystal Oscillator - Part 2
« Last post by Peinaito on June 13, 2018, 01:00:13 AM »
I want to know if these details are more detailed?
Product Reviews / Re: True RMS meters and RF signals
« Last post by Peinaito on June 13, 2018, 12:59:31 AM »
Be assured that this information is good for those who are interested in this.
Tutorials, lessons and courses / Re: Hi from Scotland
« Last post by Ayama200 on June 10, 2018, 07:40:44 PM »
Hello I am ayama Aliyu
Tutorials, lessons and courses / Hello all
« Last post by Ayama200 on June 10, 2018, 07:34:06 PM »
I am ayama Aliyu from Nigeria.
What are some tips/advice for a newbie
YouTube Video Episodes / High Frequency High Voltage Circuit
« Last post by alphabeta on May 28, 2018, 10:15:08 PM »
Simply put, I need a circuit that can produce a high frequency (300-999 MHz) high voltage AC output.  The voltage I'm look for is >100,000.  Any help is appreciated. 
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