英語聽力 學(xué)英語,練聽力,上聽力課堂! 注冊 登錄
> 在線聽力 > 有聲讀物 > 英語雜志 > 英語聽力文摘 >  第616篇

英語聽力文摘601 樹葉與太陽能板

所屬教程:英語聽力文摘

瀏覽:

手機(jī)版
掃描二維碼方便學(xué)習(xí)和分享
https://online2.tingclass.net/lesson/shi0529/0007/7643/601.mp3
https://image.tingclass.net/statics/js/2012
Leaves Inspire Better Solar Panels
樹葉與太陽能

What do leaves and solar panels have in common?

Both absorb sunlight and turn it into energy. But while solar panels typically have smooth surfaces, leaves have tiny wrinkles and folds that allow for maximum light absorption.

Recently, scientists took a cue from nature and engineered plastic solar panels with leaf like surfaces. Most flat surfaced solar panels absorb some light and turn about eighteen percent of it into electricity. Panels with ridged surfaces can absorb more light by channeling light waves, thereby significantly increasing their efficiency at converting light into electricity.

Besides making panels more efficient, ridged and wrinkled surfaces could allow solar panels to be made out of bendable plastic instead of silicon. Silicon is naturally better at absorbing light than plastic, but it’s also more expensive and more brittle. Flexible plastic is cheaper and more durable but typically not as good at absorbing light. But with leaf like surfaces, solar panels made from bendable plastic may be able to absorb light just as effectively, if not more so, than regular panels.

Another benefit of the wrinkled surface technique is that it’s especially useful for increasing absorption at the red end of the light spectrum, which has the longest wavelengths. Conventional solar panels typically absorb very little of red and infrared light. But the folding technique increased absorption of this light by nearly 600 percent.

Plastic, leaf like solar panels are not yet ready for widespread use. But they could one day help revolutionize the solar industry by allowing for thin, flexible panels used on windows, clothing, and most flat surfaces.

用戶搜索

瘋狂英語 英語語法 新概念英語 走遍美國 四級聽力 英語音標(biāo) 英語入門 發(fā)音 美語 四級 新東方 七年級 賴世雄 zero是什么意思陽泉市大陽坡英語學(xué)習(xí)交流群

網(wǎng)站推薦

英語翻譯英語應(yīng)急口語8000句聽歌學(xué)英語英語學(xué)習(xí)方法

  • 頻道推薦
  • |
  • 全站推薦
  • 推薦下載
  • 網(wǎng)站推薦