TRANSPARENT Solar Panels?!

Infinitesimally small quantum dots can turn a window into a see-through solar panel!

Thanks to the University of Minnesota for sponsoring this video! http://twin-cities.umn.edu/

Thanks also to our supporters on https://www.patreon.com/MinuteEarth
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If you want to learn more about this topic, start your googling with these keywords:
Solar window: a window that functions like an ordinary window but also generates power like a solar panel

Nanoparticle (also called nanopowder or nanocluster or nanocrystal): a microscopic particle with at least one dimension less than 100 nm. These tiny objects often have characteristics that differ from larger versions of the same material.

Quantum dots (QD): tiny nanoparticles of some kind of semiconducting material, only several nanometers in size, so small that their optical and electronic properties differ from those of larger particles. The QDs embedded in solar windows can absorb radiation largely in short wavelengths and re-emit in longer wavelengths; useful for capturing solar energy and successfully transferring it to the solar cells on the edges of the pane.

Total internal reflection: a phenomenon in which a wave hits a medium boundary at such an angle that it doesn’t pass through to the other side
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Credits (and Twitter handles):
Script Writers: Peter Reich & Emily Elert
Script Editor: Alex Reich (@alexhreich)
Video Illustrator: Qingyang Chen (@QCVisual)
Video Director: Kate Yoshida (@KateYoshida)
Video Narrator: Kate Yoshida (@KateYoshida)
With Contributions From: Henry Reich, Ever Salazar, Emily Elert, Peter Reich, David Goldenberg
Music by: Nathaniel Schroeder: http://www.soundcloud.com/drschroeder

Image Credits: Thumbnail: R. Lunt, MSU.
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References:

Bradshaw, L. R., Knowles, K. E., McDowall, S. & Gamelin, D. R. Nanocrystals for luminescent solar concentrators. Nano Lett. 15, 1315–1323 (2015).

Meinardi, F., Ehrenberg, S., Dhamo, L., Carulli, F., Mauri, M., Bruni, F., Simonutti, R., Kortshagen, U. and Brovelli, S., 2017. Highly efficient luminescent solar concentrators based on earth-abundant indirect-bandgap silicon quantum dots. Nature Photonics, 11(3), pp.177-185.

Meinardi, F. et al. Highly efficient large-area colourless luminescent solar concentrators using heavy-metal-free colloidal quantum dots. Nat. Nanotech.10, 878–885 (2015).

Yang, C, R. R. Lunt. Limits of Visibly Transparent Luminescent Solar Concentrators. Adv. Opt. Mat., 5, 8, 1600851, 2017.

Zhao Y., G. Meek, B. Levine, and R. R. Lunt, “Near-Infrared Harvesting Transparent Luminescent Solar Concentrators”. Adv. Opt. Mat., 2, 606, 2014.

20 Responses to TRANSPARENT Solar Panels?!

  1. KAVITHA KH says:

    Very useful invention

  2. Dzelion Gurung says:

    I don't think it's a recent invention but great info.
    Love this channel. <3

  3. The Pip says:

    For some reason, the term “Quantum dot” makes me happy. It’s the perfect mix of scientific-sounding and silly.

  4. fuckfannyfiddlefart says:

    It makes perfect sense to put solar panels on south facing walls and NOT windows so this is a really stupid pointless waste of time that even if it ever worked is basically nonsense for it's intended use, sure for westerly and east facing windows perhaps but as it will be so expensive and inefficient this is basically a toy that uses resources better located elsewhere.

  5. J-sUn says:

    There is something wrong with this video. Most of the colors are shorter than 640 nm.

  6. Steven Oberfeld says:

    So, it sounds like this problem of efficiency is easy to solve. If this is a good idea just make sure I have enough money to go to good schools. What if you use a collaboration between the types of solar panels. Solar window, clearly on the windows, and solar panels on the floors. The light passing through the solar windows will be absorbed by the solar panels on the floor. Also, on the outside of the building you could have ledges, or "lips" made of of solar panels, or solar windows, or both depending on how much energy the solar panel absorbs after the light passes through the solar windows. Let me know if I can go to a good school or not.

  7. Uncle Ruckus says:

    Why do they so necessarily want to put solar panels on roofs and buildings? Why can't they just make solar pannel plantations in deserts where the sun burns at excruciating rates, which makes the soil useless for any other purposes anyway.

  8. Danielle Schwartz says:

    [Awesome Plan Here >>>https://t.co/z2HakYxvSR ] Using this plan you can build any type of wind generator you want And the plan as so easy to follow that even a kind could do it.

  9. Ayesha Mulla says:

    I think this is how it should work.
    Day time: The glass solar panels collect and store sunlight (That souds so weird lmao) while the sunlight that enters that house lights up the inside. At night/when the sun sets, the stored electricity will be used to light up stuff and more until the window senses da sun, then the lights automatically turn off as daylight comes in. At day, if you wanna like use electricity it’ll be used. Yay lol

  10. YT_ BlockyGamerZ says:

    Can vantablack be used for solar panels?

  11. Cringe cast games says:

    My house produces 5x more energy then we use.

  12. Titanic says:

    0:38 at first I thought it was the base of the panel.. then when it showed it transparent it was two people kissing.. O.o

  13. Ravi Waybhase says:

    Why don't we place solar panel over the concrete wall and not on the window .🤔 Walls actualy stops the sunlight letting in to the room .

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  15. Long Nguyen says:

    So many puns…

  16. Rendom Stranger says:

    You say that it's a few years away. I say that it will never become a wide spread thing. Sure, solar panels on the roof or windows are a nice idea. But they are inefficient. It's much more efficient to build and maintain solar farms. It's for this reason that I believe that not only will we never be seeing this applies large scale but we will also be seeing the trend of solar panels on roofs dying down. That is, until we find a way to make solar panels so efficient that the energy lost from transporting it outweighs the benefits of a solar farm (assuming we're not at that point yet, I haven't looked into energy loss from transport).

  17. matt damon says:

    Thank you for your help reconditioning my batteries .I was just about to throw out 3 old batteries that I thought were completely dead. But I was able to recondition them using your methods in less than 1 hour [Check Details Here==>https://plus.google.com/100351090281822647456/posts/HMvgs7qqoKA ]! This just save me hundreds of dollars.

  18. rc xb says:

    Sounds like making half of the windows dark solar panels, while the other half are transparent glass, would be cheaper, more efficient and just as good for the occupants.

  19. Compos Mentis says:

    Andmade for 5 year old children

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