AI芯視界

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在這段視頻中， 解說員探索了一項由美國斯坦福大學的團隊開發的新技術，該技術可以讓光伏電池在夜間從太陽能電池板發電。 該概念基於熱電發電機和塞貝克效應，通過夜間太陽能電池冷卻引起的溫差發電，產生驅動電子流動並發電的電壓。 初步測試表明，每平方米太陽能表面的輸出為 50 毫瓦，隨著進一步的研究和開發，該輸出可能會增加 40 倍。 這項技術有可能全天候產生清潔的可再生能源，並減少對不可再生能源的依賴。


Q:斯坦福大學的概念是如何利用熱電發電機的力量和塞貝克效應在夜間發電的？
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斯坦福大學的概念是利用熱電發電機的能量和塞貝克效應，在夜間太陽能電池冷卻時通過溫差發電。 電池與其周圍環境之間存在溫差，這會產生電勢或電壓，驅動電子流過電路並產生電能。 塞貝克效應通過將溫差轉化為電勢，在此過程中起著至關重要的作用。 當由兩種不同金屬或半導體組成的電路在其兩端出現溫差時，就會發生這種效應，這會導致電子流動產生電壓。


Q:每平方米表面的太陽能電池的電流輸出是多少，隨著進一步的研究和開發，它的增長潛力是多少？
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如視頻中所述，TEG 太陽能電池每平方米表面的電流輸出為 50 毫瓦。 然而，隨著進一步的研究和開發，該技術有可能將其產量提高 40 倍。 這意味著，經過改進，太陽能電池的輸出可以達到每平方米表面 2 瓦，這是可再生能源領域向前邁出的重要一步。


Q:全天候產生清潔的可再生能源的可能性有哪些？這項新技術如何減少對不可再生能源的依賴？
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斯坦福大學團隊開發的 TEG 太陽能電池板技術具有全天候產生清潔可再生能源的潛力，這意味著它可以全天 24 小時發電，包括在沒有太陽的夜晚。 儘管夜間的發電量仍低於白天，但這項技術可以顯著減少對不可再生能源的依賴。 隨著進一步的研究和開發，TEG 太陽能電池板技術可能會達到每平方米表面高達 2 瓦的輸出，這可能會對可再生能源領域產生重大影響。 這項技術可以幫助減少我們對化石燃料等不可再生能源的依賴，從而有助於減輕氣候變化的負面影響，使世界成為一個更清潔、更可持續的地方。


Q:普通光源跟太陽照光在太陽能板的差別
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普通光源和太陽照光在太陽能板上的主要差異在於光的強度和頻率。
普通光源的強度和頻率通常都比太陽照光要低，而在太陽能板上，光的強度和頻率越高，將產生更多的能量。
此外，太陽能板的設計是根據太陽的光譜進行的，太陽的光譜在紅色和藍色光的頻率範圍內有很高的能量，這些顏色的光對太陽能板的效率影響最大。
因此，普通光源和太陽照光在太陽能板上之間的差異是太陽照光提供了高強度和高頻率的光源，因此產生更多的電力，而普通光源提供的光源則較弱。


0:00 in this video we'll be diving into the 0:02 fascinating world of photovoltaic cells 0:04 and exploring how a team from Stanford 0:07 University in America has developed a 0:09 groundbreaking new technology that makes 0:11 it possible to generate electricity from 0:13 solar panels at night even when there's 0:16 no light but how exactly does this 0:18 technology work and how much electricity 0:21 can be produced let's find out in 2020 0:24 photovoltaic cells produced an 0:26 impressive 760 gigawatts of energy which 0:30 is equivalent to almost 600 nuclear 0:33 power plants the potential of solar 0:35 power is enormous in fact recent 0:38 Research indicates that the entire 0:40 world's electricity demand can be met 0:42 with just the surfaces of house roofs 0:44 but when we think of solar cells we tend 0:47 to think of them as harnessing energy 0:49 from the sun's Rays during the day 0:51 however what happens when the sun sets 0:53 and the world around us is plunged Into 0:55 Darkness well that's where the Stanford 0:58 University concept comes into to play to 1:01 understand this concept let's first take 1:03 a look at how the conventional 1:04 silicone-based solar cell works these 1:07 cells consist of two layers one 1:09 positively doped and one negatively 1:11 doped in the presence of light the 1:13 electrons in the cell become excited and 1:16 tend to migrate back into the negatively 1:18 doped layer generating electricity 1:20 however without light the charge 1:22 difference simply equalizes resulting in 1:25 a voltage too low to power any devices 1:27 now here's where the Stanford University 1:30 concept comes in during the day the 1:33 solar cell heats up to a scorching 150 1:36 degrees Fahrenheit or 65 degrees Celsius 1:39 as nightfalls the lack of sunlight 1:41 causes the cell to cool down however 1:44 something peculiar happens the cell 1:47 becomes even colder than the surrounding 1:49 air this is due to the laws of 1:51 thermodynamics where heat always flows 1:54 from a hot source to a cold sink with 1:57 the temperature close to absolute zero 1:59 space become comes an ideal heat sink 2:01 the solar cell then radiates heat into 2:04 space in the form of infrared radiation 2:06 and this phenomenon can be harnessed to 2:09 generate electricity the Stanford 2:11 University concept harnesses the power 2:13 of the thermoelectric generator and the 2:16 seabec effect to generate electricity 2:18 through temperature differences when the 2:20 solar cell cools down at night there's a 2:22 temperature difference between the cell 2:24 and its surroundings this temperature 2:26 difference creates an electric potential 2:28 or a voltage which drives the flow of 2:30 electrons through a circuit and 2:32 generates electricity the cbec effect 2:34 plays a critical role in this process by 2:37 converting the temperature difference 2:38 into an electric potential this effect 2:41 occurs when a circuit made up of two 2:42 different metals or semiconductors 2:44 experiences a temperature difference 2:46 between its two ends which causes the 2:49 flow of electrons to generate a voltage 2:51 the thermoelectric generator then 2:53 converts this voltage into usable 2:55 electricity scientists have already 2:57 demonstrated an output of 50 ml watts 3:00 per square meter of the solar surface 3:02 indicating promising initial results now 3:05 you may be thinking 50 milliwatts per 3:07 square meter that doesn't sound like 3:09 much at all and you're right it's not in 3:12 fact it's only a fraction of what a 3:14 typical solar cell can produce but 3:16 here's the thing that's just the 3:18 beginning scientists predict that with 3:20 further research and development the 3:22 efficiency of this technology could be 3:24 increased by a factor of 40. that means 3:27 we could potentially see yields of 2 3:29 watts per square meter which is a huge 3:32 step forward in the world of solar 3:33 energy and the best part this solar cell 3:36 can produce electricity 24 hours a day 3:39 yes you read that right even at night 3:42 when the sun isn't shining this 3:44 technology can still generate power of 3:46 course the electricity yield at night is 3:49 still lower than during the day but it's 3:51 a start the possibilities are truly 3:54 endless imagine a world where we can 3:56 produce clean renewable energy Around 3:58 the Clock without an eruption a world 4:01 where we no longer have to rely on 4:03 fossil fuels or other non-renewable 4:05 sources of energy to power our homes and 4:07 businesses it's a dream that's becoming 4:10 more and more of a reality every day 4:12 thanks to the hard work and dedication 4:14 of scientists and researchers all over 4:16 the world if you're someone who cares 4:19 deeply about the state of our planet and 4:21 the future of renewable energy then you 4:23 won't want to miss out on the latest 4:25 updates and Innovations in this field by 4:28 subscribing to our Channel you'll gain 4:30 access to exclusive content and stay 4:32 informed about the latest breakthroughs 4:34 in renewable energy technology so hit 4:37 that subscribe button and don't forget 4:39 to share this with a friend who's also 4:41 interested in making a difference 4:43 together we can work toward a brighter 4:45 more sustainable future for generations 4:48 to come