Self-powered and flexible integrated solid-state fiber-shaped energy conversion and storage based on CNT Yarn with efficiency of 5.5%

被引：28

作者：

Kim, Jae Ho ^{[1
]}

Koo, Sung-Jun ^{[1
]}

Cheon, Jae Yeong ^{[2
]}

Jung, Yeonsu ^{[2
]}

Cho, Sungok ^{[1
]}

Lee, Daseul ^{[1
]}

Choi, Jin Woo ^{[1
]}

Kim, Taehoon ^{[2
]}

Song, Myungkwan ^{[1
]}

机构：

[1] Korea Inst Mat Sci KIMS, Dept Energy & Elect Mat, 797 Changwon Daero, Chang Won 51508, Gyeongsangnam D, South Korea

[2] Korea Inst Mat Sci KIMS, Composites Res Div, 797 Changwon Daero, Chang Won 51508, Gyeongsangnam D, South Korea

来源：

NANO ENERGY | 2022年 / 96卷

基金：

新加坡国家研究基金会;

关键词：

Solid-state; Fiber-shaped photo capacitors; Flexible carbon nanotube yarn; Solar energy; Counter electrodes; SENSITIZED SOLAR-CELLS; CARBON NANOTUBE FIBERS;

D O I：

10.1016/j.nanoen.2022.107054

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Self-powered and flexible integrated solid-state fiber-shaped photo capacitors (SS-FPCs), which combine energyharvesting and energy-storage functions in a single device, have drawn a lot of attention as potential applications in wearable electronics. Herein, a flexible carbon nanotube yarn (CNTY) with improved mechanical and electrical properties is used as a shared electrode to create SS-FPCs. In addition, CNTY was doped into n- and p-type using polyethyleneimine (PEI) and iron (III) chloride (FeCl3) to improve the electrocatalytic behavior of CNTY, respectively. The optimized SS-FPC based on p-type material-doped CNTY, which integrates the high specific capacitance of the solid-state fiber-shaped electrochemical energy storage (SS-FES) unit with 78.26 mF cm(-2) and a high power conversion efficiency (PCE) of the solid-state fiber-shaped dye-sensitized solar cells (SS-FDSSCs) unit with 5.50%, exhibits a remarkable overall energy conversion efficiency of up to 4.69% and excellent discharging time of about 6 min owing to the synergistic action of the two units. Compared to traditional integrated power systems, our self-powered and flexible integrated SS-FPCs are lightweight, flexible, affordable, and suitable for special applications, especially fabric for wearable electronics.

引用

页数：11

共 48 条

[1] Strong Carbon Nanotube Fibers by Drawing Inspiration from Polymer Fiber Spinning [J].