Footer

    Download on the App StoreGet it on Google Play

    About

    • About Us
    • Our Learning Services
    • Join Us
    • FAQ
    • Hot Tags

    Services

    • Pronunciation Challenge
    • Saved
    • Search Vocabulary
    • Blog

    Channels

    Levels

    • A1
    • A2
    • B1
    • B2
    • C1
    • C2

    Privacy˙Terms˙
    ©2026 VoiceTube Corporation. All rights reserved

    solar cells

    US

    ・

    UK

    B2
    n. pl.Noun (plural)Photovoltaic cells that convert sunlight into electricity.
    Solar cells convert sunlight directly into electricity.

    Video subtitles

    How solar energy got so cheap

    06:31How solar energy got so cheap
    • But these first solar cells are not exactly efficient.

      But these first solar cells are not exactly efficient.

    • and soon, they developed solar cells small and powerful enough to run watches, calculators, and toys.

      and soon, they developed solar cells small and powerful enough to run watches, calculators, and toys.

    B1

    Death By China 2012 (with subtitles)

    19:53Death By China 2012 (with subtitles)
    • One of the things happening in the market right now is it's being swamped by low-cost multicrystalline and polycrystalline silicon solar cells from China.

      One of the things happening in the market right now is it's being swamped by low-cost multicrystalline and polycrystalline silicon solar cells from China.

    • AND POLYCRYSTALLINE SILICONE SOLAR CELLS FROM CHINA.

      AND POLYCRYSTALLINE SILICONE SOLAR CELLS FROM CHINA.

    B1

    Are Solar Planes The Future Of Flight?

    02:44Are Solar Planes The Future Of Flight?
    • On these wings are more than 17,000 solar cells designed to recharge 2,077 pounds of lithium batteries.

      On these wings are more than 17,000 solar cells designed to recharge 2,077 pounds of lithium batteries.

    • On those wings are more than 17,000 solar cells designed to recharge 2077 pounds of

      On those wings are more than 17,000 solar cells designed to recharge 2077 pounds of

    B1

    Charge Your Phone With A Solar Powered Bikini!

    03:42Charge Your Phone With A Solar Powered Bikini!
    • solar cells, and custom-made lithium batteries store that energy for nighttime - making it

      solar cells, and custom-made lithium batteries store that energy for nighttime - making it

    • The surface of the plane is covered with 17,000 solar cells, and

      The surface of the plane is covered with 17,000 solar cells, and

    B1

    【TED】Angela Belcher: Using nature to grow batteries

    10:26【TED】Angela Belcher: Using nature to grow batteries
    • So something I think is very fascinating is, what if you could give life to non-living structures like batteries and like solar cells?

      So something I think is very fascinating is, what if you could give life to non-living structures like batteries and like solar cells?

    • like batteries and like solar cells?

      like batteries and like solar cells?

    B1

    How We Turn Solar Energy Into Electricity

    04:03How We Turn Solar Energy Into Electricity
    • into CQD or carbon quantum dots -- CQD solar cells aren't new, but usually use expensive

      into CQD or carbon quantum dots -- CQD solar cells aren't new, but usually use expensive

    • CQD solar cells aren't new, but usually use expensive ruthenium for this photoelectric properties.

      CQD solar cells aren't new, but usually use expensive ruthenium for this photoelectric properties.

    B1

    FULL EVENT: Elon Musk Takes Questions In Shock Appearance At The World Economic Forum In Davos

    31:59FULL EVENT: Elon Musk Takes Questions In Shock Appearance At The World Economic Forum In Davos
    • for other countries, China makes solar cells that are incredibly low cost and I think it would be worth doing large scale solar.

      for other countries, China makes solar cells that are incredibly low cost and I think it would be worth doing large scale solar.

    • Uh, but, uh, for for for other countries, uh, I would recommend that there's China makes solar cells that are incredibly low cost.

      Uh, but, uh, for for for other countries, uh, I would recommend that there's China makes solar cells that are incredibly low cost.

    B1

    How Crystals Can Turn Any Surface Into a Solar Panel

    04:26How Crystals Can Turn Any Surface Into a Solar Panel
    • While silicon based solar cells are by far the most common technology, one relative newcomer, solar cells that use perovskite crystals, has been getting better by leaps and bounds.

      While silicon based solar cells are by far the most common technology, one relative newcomer, solar cells that use perovskite crystals, has been getting better by leaps and bounds.

    • At this rate, perovskite solar cells could become an attractive alternative to silicon in the near future.

      At this rate, perovskite solar cells could become an attractive alternative to silicon in the near future.

    B2

    That's A Lot Of Snow | December 16, 2020

    10:01That's A Lot Of Snow | December 16, 2020
    • It takes about seven tons of this material to make a million watts of solar cells.

      It takes about seven tons of this material to make a million watts of solar cells.

    • It only takes 35 kilograms of this material to make the same million watts of solar cells.

      It only takes 35 kilograms of this material to make the same million watts of solar cells.

    B1