探索使用氨基取代的并苯二酰亚胺和碳纳米管的高性能 n 型热电复合材料。
Exploring High-Performance n-Type Thermoelectric Composites Using Amino-Substituted Rylene Dimides and Carbon Nanotubes.
机构信息
Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China.
Key Laboratory of Rubber-Plastics, Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, P. R. China.
出版信息
ACS Nano. 2017 Jun 27;11(6):5746-5752. doi: 10.1021/acsnano.7b01279. Epub 2017 May 18.
Taking advantage of the high electrical conductivity of a single-walled carbon nanotube (SWCNT) and the large Seebeck coefficient of rylene diimide, a convenient strategy is proposed to achieve high-performance n-type thermoelectric (TE) composites containing a SWCNT and amino-substituted perylene diimide (PDINE) or naphthalene diimide (NDINE). The obtained n-type composites display greatly enhanced TE performance with maximum power factors of 112 ± 8 (PDINE/SWCNT) and 135 ± 14 (NDINE/SWCNT) μW m K. A short doping time of 0.5 h can ensure high TE performance. The corresponding TE module consisting of five p-n junctions reaches a large output power of 3.3 μW under a 50 °C temperature gradient. In addition, the n-type composites exhibit high air stability and excellent thermal stability. This design strategy benefits the future fabricating of high-performance n-type TE materials and devices.
利用单壁碳纳米管（SWCNT）的高导电性和并苯二酰亚胺的大塞贝克系数，提出了一种简便的策略，可实现含有 SWCNT 和氨基取代的并苯二酰亚胺（PDINE）或萘二酰亚胺（NDINE）的高性能 n 型热电器件（TE）复合材料。所得到的 n 型复合材料显示出大大增强的 TE 性能，最大功率因子分别为 112 ± 8（PDINE/SWCNT）和 135 ± 14（NDINE/SWCNT）μW m K。0.5 h 的短掺杂时间可确保高 TE 性能。由五个 p-n 结组成的相应 TE 模块在 50°C 的温度梯度下可达到 3.3 μW 的大输出功率。此外，n 型复合材料表现出高空气稳定性和优异的热稳定性。这种设计策略有利于未来制造高性能 n 型 TE 材料和器件。
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