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type="text/css"></style> <div id="ct" class="ct2 wp cl"> <div class="mn"> <div class="bm_haa cl"> <div class="bm_h cl"> <a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a><h1 class="xs2">文章</h1> </div></div> <div class="kjkjb"> <div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=54876&size=small" /></div> <h1 class="ph">新型高效LED：发光效率大幅提升 </h1> <p class="xg1"> 时间：2018-7-31 09:28<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(691)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=6896&idtype=aid" title="查看全部评论"><em id="_commentnum">5</em></a></p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>据外媒报道，土耳其伊斯坦布尔科克大学的研究人员利用悬浮在液体中的量子点研发出高效LED。</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"><p style="padding: 0px 0px 15px; margin: 0px; list-style: none; border: 0px; line-height: 24px; text-indent: 2em; word-break: break-word; font-family: 瀹嬩綋;">据外媒报道，土耳其伊斯坦布尔科克大学的研究人员利用悬浮在液体中的量子点研发出高效<span class="hrefStyle" style="padding: 0px; margin: 0px;"><span style="list-style-position: initial; list-style-image: initial;">LED</span></span>。</p><p style="padding: 0px 0px 15px; margin: 0px; list-style: none; border: 0px; line-height: 24px; text-indent: 2em; word-break: break-word; font-family: 瀹嬩綋;">量子点在从液体中取出然后固定成固体形式时，其发射效率会降低，这种效率损失被称为基质效应。因此，研究人员通过将液体整合到LED中，进而消除基质效应，红、绿、蓝（RGB）和绿蓝（GB）白光的<a href="http://light.oecr.com" target="_blank" class="relatedlink">发光</a>效率可达到64 lm ／ W和105 lm ／ W。</p><p style="padding: 0px 0px 15px; margin: 0px; list-style: none; border: 0px; line-height: 24px; text-indent: 2em; word-break: break-word; font-family: 瀹嬩綋;">据<a href="http://theory.oecr.com" target="_blank" class="relatedlink">理论</a>计算，液体QD－LED的发光效率可以达到200lm／W以上。研究人员表示，流体介质的光学特性可以通过替换成另一种流体介质来改变，并且还可以通过控流体的混合比来调整光谱。</p><p style="padding: 0px 0px 15px; margin: 0px; list-style: none; border: 0px; line-height: 24px; text-indent: 2em; word-break: break-word; font-family: 瀹嬩綋;">因为基质<a href="http://material.oecr.com" target="_blank" class="relatedlink">材料</a>效应受到抑制，使用液基量子点溶液可将发光效率提高50％以上。随着量子点的量子产率增加，发射光子数量与吸收光子数量的比率显著提高，从而实现高效颜色转换以及更高的白光LED效率。</p><p style="padding: 0px 0px 15px; margin: 0px; list-style: none; border: 0px; line-height: 24px; text-indent: 2em; word-break: break-word; font-family: 瀹嬩綋;">研究人员对色彩转换光谱进行了额外的微调，使其峰值接近眼睛敏感度函数的峰值，这种微调实现了更高光效的光放射。</p><p style="padding: 0px 0px 15px; margin: 0px; list-style: none; 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