Study shows performance of photodetector heterojunctions varies with carbon nanotube diameter

https://phys.org/news/2023-07-photodetector-heterojunctions-varies-carbon-nanotube.html

"improved responsivity, detectivity, response time... enhanced separation and transport photogenerated excitons... 5X detectivity, 4X response speed, increased built-in electric fields heterojunction interface s-SWCNTs semiconducting SWCNTs/QD drives hole carrier separation... lower cost, energy consumption and fragility... perovskite quantum dot films SWCNT monolayers improve optical absorption... optical communications, wearable technologies, medical and artificial intelligence, artificial vision photodetectors"

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