this post was submitted on 26 Jul 2024
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I was a little careless with how I phrased that. They said in the article they've done it, but it's not "realized" in the sense that it's not to a level of practicality that they'd want it to be. It can currently harvest signals to -20dBm, but they think they can get that to -62dBm for greater efficiency.
The main hurdle, according to them, is there's no schottky diode that fits their needs, and they'll have to engineer a new variant (at the nano scale...?). So, still a theoretical possibility on a more practical level, but this is hopeful news nonetheless.
I agree, it's still very hopeful news that this type of research is being conducted at all, I'm still looking forward to transceivers being built into cell phone batteries and slowly trickle charging constantly.