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A comment on Converting Wi-Fi signals to electricity with new 2-D materials. Parent comment

Re:Converting Wi-Fi signals to electricity with new 2-D mate... by mmagin on Thursday January 31, 2019 @04:13PM (#19048932)
There's a remarkable array of ways you can get a crude semiconductor junction. See also https://en.wikipedia.org/wiki/Rusty_bolt_effect
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