Optically observed multiple inter-chain interactions in polyblend semiconducting polymer nanoparticles

Optically observed multiple inter-chain interactions in polyblend semiconducting polymer nanoparticles
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光学观察多共混物半导体聚合物纳米颗粒中的多重链间相互作用

DOI:
10.1039/c7ra07665g
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发表时间:
2017
期刊:
RSC Adv.
影响因子:
--
通讯作者:
Hashim Z
Hashim Z
中科院分区:
--
文献类型:
--
作者:
Hashim Z

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以三种不同的共轭聚合物为原料,通过细乳液路线合成了不同比例的F8BT:MEH-PPV:CN-PPV半导体聚合物共混纳米粒子(SPN);两种红色/橙色发光聚合物;聚[2-甲氧基-5-(2-乙基己氧基)-1,4-亚苯基亚乙烯基](MEH-PPV)和聚(2,5-二(己氧基)氰基对苯二亚甲基)(CN-PPV),以及一种绿色发光聚合物聚(9,9-二辛基芴-替代苯并噻二唑)(F8BT)。通过透射电子显微镜测定,所得的 SPN 呈球形,并表现出可调谐的光致发光。这些光学特性归因于同一纳米颗粒内F8BT和MEH-PPV之间以及MEH-PPV和CN-PPV之间的链间相互作用,而F8BT的链和CN-PPV的链之间没有发生直接相互作用。因此,复合材料 SPN 中 MEH-PPV 的存在促进了间接的 F8BT:CN-PPV 相互作用,这在以前是不可能的。
F8BT:MEH-PPV:CN-PPV semiconducting polymer blend nanoparticles (SPNs) were synthesized with different ratios by a miniemulsion route from three different conjugated polymers; two red/orange emitting polymers; poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) and poly(2,5-di(hexyloxy)cyanoterephthalylidene) (CN-PPV), and one green emitting polymer poly(9,9-dioctylfluorene-alt-benzothiadiazole) (F8BT). The resulting SPNs were spherical in shape as determined by transmission electron microscopy, and exhibited tuneable photoluminescence. These optical properties were attributed to the inter-chain interactions between F8BT and the MEH-PPV, and between MEH-PPV and CN-PPV within the same nanoparticle, with no direct interactions happening between the chains of F8BT and the chains of CN-PPV. Therefore, the presence of MEH-PPV within the polyblend SPNs facilitated an indirect F8BT:CN-PPV interaction that was not possible before.
共轭聚合物纳米颗粒的多重能量传递动力学
DOI: --
发表时间: 2014
期刊:
影响因子: --
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通讯作者: J. McNeill
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