Running an LED in reverse could cool future computers

Re:Running an LED in reverse could cool future computers by pontifier on Sunday February 17, 2019 @05:10PM (#19187234)

This is an interesting effect.

How does the strength and efficiency of this effect compare to the cooling possible with Peltier junctions?

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Re:Running an LED in reverse could cool future computers by mcnamaratw on Sunday February 17, 2019 @06:13PM (#19187501)

You can move a watt per cm^2 with a single-stage Peltier effect device, depending on the temperature difference you need. Here's a data sheet for a 9mm by 9mm device that can do 1W/cm^2 at 40C temp difference:

https://cdn2.hubspot.net/hubfs/547732/Data_Sheets/NL1012T.pd...

The OP claims 1000 W/m^2 theoretical max for the optical cooler. That's 0.1W/cm^2. Right now they say it's 0.6% of that theoretical max.

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