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class="ss"><div><span>导读： </span>科技日报华盛顿10月7日电 在7日出版的《科学》杂志上，一美国研究小组发表论文称，他们利用碳纳米管和二硫化钼（MoS2），成功制出目前世界最小晶体管，其栅极长度仅有1纳米，这一仅是人类发丝直径五万分之一的尺度， ...</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content"><div>科技日报华盛顿10月7日电 在7日出版的《科学》杂志上，一美国研究小组发表论文称，他们利用碳<a href="http://material.oecr.com" target="_blank" class="relatedlink">纳米</a>管和二硫化钼（MoS2），成功制出目前世界最小<a href="http://material.oecr.com" target="_blank" class="relatedlink">晶体</a>管，其栅极长度仅有1纳米，这一仅是人类发丝直径五万分之一的尺度，远低于硅基晶体管栅极长度最小5纳米的<a href="http://theory.oecr.com" target="_blank" class="relatedlink">理论</a>极值。</div><div><br></div><div>制出更小的晶体管，是<a href="http://sensor.oecr.com" target="_blank" class="relatedlink">半导体</a>行业一直努力的方向，栅极长度则被认为是衡量晶体管大小的标准。目前，市面上高端<a href="http://electronic.oecr.com" target="_blank" class="relatedlink">电子</a><a href="http://b.oecr.com/sell" target="_blank" class="relatedlink">产品</a>所用晶体管多为栅极20纳米的硅基晶体管，而业界普遍认为，栅极小于5纳米的晶体管无法正常工作。为克服硅的局限性，美国能源部劳伦斯伯克利国家实验室研究员阿里·贾维领导的研究小组，把目光瞄向了二硫化钼和碳纳米管。</div><div><br></div><div>二硫化钼与硅一样具有晶体晶格结构，但与硅相比，二硫化钼的导电性更易控制，且可被<a href="http://optics.oecr.com" target="_blank" class="relatedlink">加工</a>成只有0.65纳米厚的、介电常数（又称电容率）较低的薄层，可算是理想的晶体管<a href="http://material.oecr.com" target="_blank" class="relatedlink">材料</a>。而用直径只有1纳米的碳纳米管做栅极，则是充分考虑制造<a href="http://optics.oecr.com" target="_blank" class="relatedlink">工艺</a>难度的结果。因为制造只有1纳米的微小结构并不是一件容易的事，传统的光刻技术无法很好完成这样的工作。研究小组的<a href="http://opticaltest.oecr.com" target="_blank" class="relatedlink">测试</a>表明，以碳纳米管作为栅极的二硫化钼晶体管，可有效地控制电流。即使栅极只有1纳米，其电气性能表现依然良好。</div><div><br></div><div>贾维表示，栅极只有1纳米的晶体管是目前世界上最小的晶体管。同时研究也表明，材料科学会为电子产品小型化提供更多的空间。只要找到合适的半导体材料，构建合适的结构，摩尔定律在未来一段时间内还依然可以有效。</div><div style="text-align: center;"><p><a href="data/attachment/portal/201610/09/091708qzwoc6otinnqhncq.jpg" 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name="comment_anchor_8588"></a> <dl id="comment_8588_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(8588, '4883');">引用</a> </span> <a href="http://club.oecr.com/space-uid-186.html" class="xi2 xw1" c="1">676892</a> <span class="xg1 xw0">2016-10-9 20:40</span> </dt> <dd>网页底部的新手入门你们看了没？</dd> </dl><a name="comment_anchor_8586"></a> <dl id="comment_8586_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(8586, '4883');">引用</a> </span> <a href="http://club.oecr.com/space-uid-63737.html" class="xi2 xw1" c="1">loveryong001</a> <span class="xg1 xw0">2016-10-9 19:39</span> </dt> <dd>大家多贴点好东西啊。</dd> </dl><a name="comment_anchor_8582"></a> <dl id="comment_8582_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(8582, '4883');">引用</a> </span> <a href="http://club.oecr.com/space-uid-59756.html" class="xi2 xw1" c="1">desney</a> <span class="xg1 xw0">2016-10-9 17:39</span> </dt> <dd>长见识啦。。。</dd> </dl><a name="comment_anchor_8573"></a> <dl id="comment_8573_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(8573, '4883');">引用</a> </span> <a href="http://club.oecr.com/space-uid-14087.html" class="xi2 xw1" c="1">红火麒麟</a> <span class="xg1 xw0">2016-10-9 13:39</span> </dt> <dd>网页底部的新手入门你们看了没？</dd> </dl><a name="comment_anchor_8571"></a> <dl id="comment_8571_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(8571, '4883');">引用</a> </span> <a href="http://club.oecr.com/space-uid-28070.html" class="xi2 xw1" c="1">command</a> <span class="xg1 xw0">2016-10-9 12:39</span> </dt> <dd>顶下，挺好的。</dd> </dl></div> </div> <!--[diy=diycontentcomment]--><div id="diycontentcomment" 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