神奇的新科技：用影子发电
<p><span word="It">It</span> <span word="sounds">sounds</span> <span word="like">like</span> <span word="something">something</span> <span word="from">from</span> <span word="a">a</span> <span word="sci">sci</span>-<span word="fi">fi</span> <span word="movie">movie</span>, <span word="but">but</span> <span word="the">the</span> <span word="newly">newly</span> <span word="revealed">revealed</span> <span word="Shadow">Shadow</span>-<span word="Effect">Effect</span> <span word="Energy">Energy</span> <span word="Generator">Generator</span> (<span word="SEG">SEG</span>) <span word="is">is</span> <span word="a">a</span> <span word="real">real</span> <span word="prototype">prototype</span> <span word="device">device</span>. <span word="The">The</span> <span word="fascinating">fascinating</span> <span word="concept">concept</span> <span word="could">could</span> <span word="help">help</span> <span word="us">us</span> <span word="to">to</span> <span word="transform">transform</span> <span word="the">the</span> <span word="way">way</span> <span word="renewable">renewable</span> <span word="energy">energy</span> <span word="is">is</span> <span word="generated">generated</span> <span word="indoors">indoors</span>.</p><p>这听起来好像是科幻电影里的东西，但最近公布的通过阴影效应发电是真实存在的实物装置。这个吸引人的概念能帮助我们改变可再生能源在室内产生的方式。</p><p><span word="The">The</span> <span word="SEG">SEG</span> <span word="uses">uses</span> <span word="the">the</span> <span word="contrast">contrast</span> <span word="between">between</span> <span word="darkness">darkness</span> <span word="and">and</span> <span word="light">light</span> <span word="to">to</span> <span word="produce">produce</span> <span word="electricity">electricity</span>. <span word="It">It</span>'<span word="s">s</span> <span word="made">made</span> <span word="up">up</span> <span word="of">of</span> <span word="a">a</span> <span word="series">series</span> <span word="of">of</span> <span word="thin">thin</span> <span word="strips">strips</span> <span word="of">of</span> <span word="gold">gold</span> <span word="film">film</span> <span word="on">on</span> <span word="a">a</span> <span word="silicon">silicon</span> <span word="wafer">wafer</span>, <span word="placed">placed</span> <span word="on">on</span> <span word="top">top</span> <span word="of">of</span> <span word="a">a</span> <span word="flexible">flexible</span> <span word="plastic">plastic</span> <span word="base">base</span>.</p><p>通过阴影效应发电利用明暗对比来发电，它是由硅晶片上的一系列薄金片组成，放置在软塑料底座上。</p><p><span word="Whereas">Whereas</span> <span word="shadows">shadows</span> <span word="are">are</span> <span word="usually">usually</span> <span word="a">a</span> <span word="problem">problem</span> <span word="for">for</span> <span word="renewable">renewable</span> <span word="solar">solar</span> <span word="energy">energy</span> <span word="production">production</span>, <span word="here">here</span> <span word="they">they</span>'<span word="re">re</span> <span word="actually">actually</span> <span word="harnessed">harnessed</span> <span word="to">to</span> <span word="keep">keep</span> <span word="on">on</span> <span word="generating">generating</span> <span word="power">power</span>. <span word="The">The</span> <span word="technology">technology</span> - <span word="which">which</span> <span word="is">is</span> <span word="cheaper">cheaper</span> <span word="to">to</span> <span word="produce">produce</span> <span word="than">than</span> <span word="a">a</span> <span word="typical">typical</span> <span word="solar">solar</span> <span word="cell">cell</span>, <span word="according">according</span> <span word="to">to</span> <span word="its">its</span> <span word="developers">developers</span> - <span word="produces">produces</span> <span word="small">small</span> <span word="amounts">amounts</span> <span word="of">of</span> <span word="power">power</span> <span word="and">and</span> <span word="could">could</span> <span word="be">be</span> <span word="used">used</span> <span word="in">in</span> <span word="mobile">mobile</span> <span word="gadgets">gadgets</span>, <span word="for">for</span> <span word="example">example</span>.</p><p>尽管阴影通常会给可再生太阳能生产造成问题，但在这儿它们实际上被用来持续发电。据其开发人员介绍，这种技术比一般的太阳能电池生产成本更低，产生的功率很小，可用于移动设备等。</p><p>"<span word="Shadows">Shadows</span> <span word="are">are</span> <span word="omnipresent">omnipresent</span>, <span word="and">and</span> <span word="we">we</span> <span word="often">often</span> <span word="take">take</span> <span word="them">them</span> <span word="for">for</span> <span word="granted">granted</span>," <span word="says">says</span> <span word="materials">materials</span> <span word="scientist">scientist</span> <span word="Tan">Tan</span> <span word="Swee">Swee</span> <span word="Ching">Ching</span>, <span word="from">from</span> <span word="the">the</span> <span word="National">National</span> <span word="University">University</span> <span word="of">of</span> <span word="Singapore">Singapore</span> (<span word="NUS">NUS</span>). "<span word="In">In</span> <span word="conventional">conventional</span> <span word="photovoltaic">photovoltaic</span> <span word="or">or</span> <span word="optoelectronic">optoelectronic</span> <span word="applications">applications</span> <span word="where">where</span> <span word="a">a</span> <span word="steady">steady</span> <span word="source">source</span> <span word="of">of</span> <span word="light">light</span> <span word="is">is</span> <span word="used">used</span> <span word="to">to</span> <span word="power">power</span> <span word="devices">devices</span>, <span word="the">the</span> <span word="presence">presence</span> <span word="of">of</span> <span word="shadows">shadows</span> <span word="is">is</span> <span word="undesirable">undesirable</span>, <span word="since">since</span> <span word="it">it</span> <span word="degrades">degrades</span> <span word="the">the</span> <span word="performance">performance</span> <span word="of">of</span> <span word="devices">devices</span>.</p>
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