In Situ Oxidation Synthesis of p‐Type Composite with Narrow‐Bandgap Small Organic Molecule Coating on Single‐Walled Carbon Nanotube: Flexible Film and Thermoelectric Performance,Small

当前位置： X-MOL 学术 › Small › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

In Situ Oxidation Synthesis of p‐Type Composite with Narrow‐Bandgap Small Organic Molecule Coating on Single‐Walled Carbon Nanotube: Flexible Film and Thermoelectric Performance
Small ( IF 13.0 ) Pub Date : 2018-02-09 , DOI: 10.1002/smll.201703453
Caiyan Gao ₁ , Guangming Chen _{1,

2}

Affiliation

Although composites of organic polymers or n‐type small molecule/carbon nanotube (CNT) have achieved significant advances in thermoelectric (TE) applications, p‐type TE composites of small organic molecules as thick surface coating layers on the surfaces of inorganic nanoparticles still remain a great challenge. Taking advantage of in situ oxidation reaction of thieno[3,4‐b]pyrazine (TP) into TP di‐N‐oxide (TPNO) on single‐walled CNT (SWCNT) surface, a novel synthesis strategy is proposed to achieve flexible films of TE composites with narrow‐bandgap (1.19 eV) small molecule coating on SWCNT surface. The TE performance can be effectively enhanced and conveniently tuned by poly(sodium‐p‐styrenesulfonate) content, TPNO/SWCNT mass ratio, and posttreatment by various polar solvents. The maximum of the composite power factor at room temperature is 29.4 ± 1.0 µW m⁻¹ K⁻². The work presents a way to achieve flexible films of p‐type small organic molecule/inorganic composites with clear surface coating morphology for TE application.

中文翻译：

单壁碳纳米管上窄带隙有机小分子涂层p型复合材料的原位氧化合成：柔性膜和热电性能

尽管有机聚合物或n型小分子/碳纳米管（CNT）的复合材料在热电（TE）应用方面取得了重大进展，但仍保留了有机小分子的p型TE复合材料作为无机纳米颗粒表面上的厚表面涂层巨大的挑战。在噻吩并[3,4-b]吡嗪（TP）为TP的原位氧化反应趁着二Ñ氧化物上（TPNO）单壁CNT（SWCNT）的表面，一种新颖的合成策略，提出了实现柔性膜SWCNT表面具有窄带隙（1.19 eV）小分子涂层的TE复合材料的制备。聚（钠）p可以有效地增强TE性能并方便地对其进行调整-苯乙烯磺酸盐）含量，TPNO / SWCNT质量比，以及各种极性溶剂的后处理。室温下的复合功率因数最大值为29.4±1.0 µW m ^-1 K ^-2。这项工作提出了一种获得p型小有机分子/无机复合材料的柔性膜的方法，该膜具有清晰的表面涂层形态，可用于TE应用。

更新日期：2018-02-09

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11