Ambient-Stable n-Type Carbon Nanotube/Organic Small-Molecule Thermoelectrics Enabled by Energy Level Control

被引：5
|
作者：
Kim, Tae-hoon [1 ]
Jang, Jae Gyu [2 ]
Kim, Sung Hyun [2 ]
Hong, Jong-In [1 ]
机构：
[1] Seoul Natl Univ, Dept Chem, Seoul 08826, South Korea
[2] Wonkwang Univ, Dept Carbon Convergence Engn, Iksan 54538, South Korea
来源：
ACS APPLIED MATERIALS & INTERFACES | 2023年 / 15卷 / 40期
基金：
新加坡国家研究基金会;
关键词：
carbon nanotube; n-type organic hybrid thermoelectrics; organic small molecule; ambient stability; energy level; thermoelectric figure of merit; P-TYPE; PERFORMANCE; COMPOSITES; CONDUCTIVITY;
D O I：
10.1021/acsami.3c09222
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The stability of n-type organic and hybrid thermoelectric materials is limited in terms of their practical application to p-n parallel thermoelectric devices. We demonstrate the ambient stability of an n-type single-walled carbon nanotube/organic small-molecule (SWNT/OSM) hybrid by deepening the lowest occupied molecular orbital energy level. This hybrid exhibited the best figure of merit (0.032) among n-type SWNT/OSM hybrid thermoelectrics and an enhanced power factor of 291.0 mu W m(-1) K-2. Furthermore, we observed that the n-type thermoelectric stability of a hybrid of SWNT and pip containing two N-ethylpiperidinyl groups on both sides of a naphthalenediimide core was retained at 87% over 7 months (220 days) under ambient conditions without encapsulation.
引用
收藏
页码：46872 / 46880
页数：9
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