# Quantum dots as phosphors?

**URL:** <https://boards.straightdope.com/t/quantum-dots-as-phosphors/607266>\
**Category:** Factual Questions\
**Created:** [December 24, 2011, 9:01am UTC](https://boards.straightdope.com/t/quantum-dots-as-phosphors/607266 "2011-12-24T09:01:19Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![AaronX](https://avatars.discourse-cdn.com/v4/letter/a/7bcc69/32.png) [@AaronX](https://boards.straightdope.com/u/AaronX)\
**Post date:** [December 24, 2011, 9:01am UTC](https://boards.straightdope.com/t/quantum-dots-as-phosphors/607266/1 "2011-12-24T09:01:19Z")

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Can we use quantum dots as phosphors to replace rare earths (e.g. europium) in fluorescent lights, LEDs etc.? Seems it’d be easier to control size than depend on elements controlled by certain countries (e.g. neodymium).