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Fluorescent Nanomaterial-derived White Light-Emitting Diodes: What¡¯s Going On First published online 25 Mar 2014, J. Mater. Chem. C, 2014, DOI: 10.1039/C4TC00048J Á´½Ó£ºhttp://pubs.rsc.org/en/content/a ... 00048j#!divAbstract ¿ÆÑ§Íø£ºhttp://blog.sciencenet.cn/home.php?mod=space&uid=411747&do=blog&id=782383 °×¹âLEDÒÔ³¤ÊÙÃü¡¢½ÚÄÜЧ¹ûÏÔÖøµÄÓÅÔ½ÐÔÄÜ£¬³ÉΪ¿ÉÌæ´ú´«Í³°×³ãµÆµÄÐÂÒ»´úÕÕÃ÷²úÆ·£¬Òò´Ë½üÄêÀ´Êܵ½¹ã·º¹Ø×¢¡£ÎÄÕÂÖ÷Òª×ܽáÁ˽ü¼¸ÄêProf. Chen ¿ÎÌâ×é¼°¹ú¼ÊÉÏÆäËû¿ÎÌâ×éÔÚ¸ÃÁìÓòµÄһЩ½øÕ¹¡£ÔÚǰÈ˵Ļù´¡ÉÏ£¬À©³äÁ˹âת»»²ÄÁϵķ¶Î§¡£Éæ¼°µ½µÄ°×¹âLEDת»»²ÄÁÏÖ÷Òª°üÀ¨°ëµ¼ÌåÁ¿×ӵ㡢¹èÁ¿×ӵ㡢̼Á¿×ӵ㡢ʯīϩÁ¿×ӵ㡢ӫ¹âÄÉÃ×ÓлúÎÞ»úºÍ²ÄÁÏ£¨Á¿×Óµã-¾ÛºÏÎï¡¢Ó«¹â±¡Ä¤£©µÈ£¬¶Ô´Ë·½ÏòÉϵÄÖ÷ÒªÑо¿½øÕ¹½øÐÐÁ˿͹۵Ä×ܽáºÍÆÀÊö¡£Íû¸÷λͬÐС¢ÅóÓѶà¶àÖ¸½Ì¡£ 220903h0v37l70vfv3cb1o.jpg Timeline showing recent progress in fluorescent nanomaterial-derived white LEDs. 1. Á¿×Óµã 1.1 °ëµ¼ÌåÁ¿×Óµã 1.2 ºË/¶à¿Ç½á¹¹ 1.3 ²ôÔÓÁ¿×Óµã 1.4 ÎÞÖØ½ðÊôÁ¿×Óµã 1.5 Ö±½Ó°×¹â·¢ÉäµÄÁ¿×Óµã 2. ̼Á¿×Óµã 3.1 µçÖ·¢¹â̼Á¿×ÓµãLED 3.2 ¹âÖ·¢¹â̼Á¿×ÓµãLED 3.3 °×¹â̼Á¿×Óµã»ùLED 3. ¹èÁ¿×Óµã 4. ʯīϩÁ¿×Óµã 5. ÓлúÎÞ»úÔÓ»¯°×¹âLED 5.1 Á¿×Óµã-¹²éî¾ÛºÏÎïÔÓ»¯µçÖ·¢¹âWLED 5.2 Á¿×Óµã-¾ÛºÏÎïÔÓ»¯¹âÖ·¢¹âWLED 5.3 °ëµ¼ÌåÁ¿×Óµã-¾ÛºÏÎïÓ«¹â±¡Ä¤£¨Ô¶³Ì£© 5.4 ̼Á¿×Óµã-¾ÛºÏÎïÓ«¹â±¡Ä¤£¨Ô¶³Ì£© Abstract: White light-emitting diodes (white LEDs) have recently attracted substantial interest owing to their remarkable energy conservation. The evolution of fluorescent nanomaterials with tunable optical properties has provided an opportunity for light source design of white LEDs. However, the stability and performance of fluorescent nanomaterial-derived white LEDs still fail to meet the requirements of practical applications. It is therefore imperative to boost their overall device performance, which depends on not only the exploitation of advanced fluorescent nanomaterials but also the design of superior light source. In this review, the achievements in fluorescent nanomaterials as color converters towards white LEDs are highlighted, including semiconductor nanocrystals or colloidal quantum dots (QDs), carbon-based nanoparticles, silicon QDs, and organic-inorganic fluorescent nanocomposites. The challenges and future perspectives in this research area are also discussed. [ Last edited by zq20051215 on 2014-4-18 at 21:25 ] |
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