This just makes me want to put 100 of them in parallel and then put 10 of those lines in series. Imagine collecting 180 uA @ 3 volts in the dark! It'd cost about 500$ in BPW34's to do it but it would be THE COOLEST SOLAR PANEL IN THE WORLD! It would probably also outperform other solar panels on a MM^2 surface area basis for the actual active part of the cell. This chip has a fairly wide band. My dream at the moment is to energy harvest long wave infrared. To do this I need InGaAs photodiode or MCT photodiodes. A blackbody at 22.3 degrees celsius emits a maximum of 440 watts/m^2 of LWIR. In the case of an LWIR photovoltaic panel at room temperature, that's 440 watt/m^2 from the forward facing surface, 440 from the rear facing surface and, since the cell is room temp too, 440 from the cell itself. So that's an energy density of ~1320 watt/m^2 to be able to convert into electricity. That better than sunlight at noon on a clear day! Even if the cell is only 5% efficient, that would translate to ~65 watts/m^2 of constant electrical supply from the cell in the dark!
I would measure current by putting a known resistor load and then measure the voltage across the resistor. Then use ohms law. Having it go thru a current meter might be a little off.
Hi Muadz...Can you share your energy harvesting project because currently im working on the same project but im stuck on storing the energy because of the low current output of the photodiode
Tom, thank you for this video. Curious to know if you had a chance to pair the BPW34 with an energy harvesting PMIC? Would one be able to charge a LiPo battery with several/larger PIN photodiodes?
You can use one of these with the amplifier transistor from a condenser microphone to make a tiny radiation detector with.
Thanks for posting these results. I just got the OSRAM version of same BPW34 diode. Hopefully I'll get similar results.
This just makes me want to put 100 of them in parallel and then put 10 of those lines in series. Imagine collecting 180 uA @ 3 volts in the dark! It'd cost about 500$ in BPW34's to do it but it would be THE COOLEST SOLAR PANEL IN THE WORLD! It would probably also outperform other solar panels on a MM^2 surface area basis for the actual active part of the cell. This chip has a fairly wide band.
My dream at the moment is to energy harvest long wave infrared. To do this I need InGaAs photodiode or MCT photodiodes.
A blackbody at 22.3 degrees celsius emits a maximum of 440 watts/m^2 of LWIR. In the case of an LWIR photovoltaic panel at room temperature, that's 440 watt/m^2 from the forward facing surface, 440 from the rear facing surface and, since the cell is room temp too, 440 from the cell itself.
So that's an energy density of ~1320 watt/m^2 to be able to convert into electricity. That better than sunlight at noon on a clear day! Even if the cell is only 5% efficient, that would translate to ~65 watts/m^2 of constant electrical supply from the cell in the dark!
A regular 5mm yellow led will give you a voltage of 1.6 and about 86 uAh so what is so exiting about these photoresistors?
I would measure current by putting a known resistor load and then measure the voltage across the resistor. Then use ohms law. Having it go thru a current meter might be a little off.
Yess this photodiode very interesting. I use it for my energy harvesting project
Hi Muadz...Can you share your energy harvesting project because currently im working on the same project but im stuck on storing the energy because of the low current output of the photodiode
@@adamharith866 you should try a supercapacitor
@@adamharith866 do you have any feedback ?
Tom, thank you for this video. Curious to know if you had a chance to pair the BPW34 with an energy harvesting PMIC?
Would one be able to charge a LiPo battery with several/larger PIN photodiodes?
Can be read optical fiber attenuation sir?