Dispersion-Process Effects on the Photoluminescence Quantum Yields of Single-Walled Carbon Nanotubes Dispersed Using Aromatic Polymers
Dispersion-Process Effects on the Photoluminescence Quantum Yields of Single-Walled Carbon Nanotubes Dispersed Using Aromatic Polymers
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DOI：
10.1021/jp212040y
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发表时间：
2012-05-10
影响因子：
3.7
通讯作者：
Matsuda, Kazunari
中科院分区：
文献类型：
--
作者：
Mouri, Shinichiro;Miyauchi, Yuhei;Matsuda, Kazunari
本文研究了分散工艺对聚[9,9-二辛基芴基-2,7-二基]（PFO）分散的单壁碳纳米管（SWNTs）光致发光（PL）性能的影响。合成方法（CoMoCAT、HiPco和酒精化学气相沉积）的差异对pfo - swcnts的PL量子产率（QYs）影响不大。使用中等槽型超声器处理的swnt显示出最大的PL QY（类似于2%），并且由于使用强力尖端型超声器进行超声分散，QY急剧下降。激子猝灭位点密度极低(
We studied the dispersion-process effects on the photoluminescence (PL) properties of single-walled carbon nanotubes (SWNTs) dispersed using poly[9,9-dioctylfluorenyl-2,7-diyl] (PFO) (PFO-SWNTs). The difference of the synthesis method (CoMoCAT, HiPco, and alcohol chemical vapor deposition) is insignificant for the PL quantum yields (QYs) of PFO-SWNTs. SWNTs processed using a moderate bath-type sonicator showed the maximum PL QY (similar to 2%) and the QY decreased drastically due to ultrasonic dispersion using a vigorous tip-type sonicator. The very low density of exciton quenching sites (