Efficient DMSO-Vapor Annealing for Enhancing Thermoelectric Performance of PEDOT:PSS-Based Aerogel

• DOI: 10.1021/acsami.8b19168
• Publication Date: 2018-12-21T22:00:42Z
• Authors: Xiaodong Wang; Peipei Liu; Qinglin Jiang; Weiqiang Zhou; Jingkun Xu; Jing Liu; Yanhua Jia; Xuemin Duan; Youfa Liu; Yukou Du; Fengxing Jiang
• Keywords: 02 engineering and technology; 0210 nano-technology; 7. Clean energy

Conducting polymer-based composite aerogel film is desired to be used as thermoelectric (TE) materials due its good flexibility and ultralow thermal conductivity. Here, we proposed the simple freeze drying method fabricate free-standing poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT:PSS)-based films without any crosslinker addition. The evolutions of morphology TE performance were systemically investigated with various organic solvent Furthermore, a series PEDOT:PSS/tellurium nanowires (Te-NWs) was prepared, relationship between structure charge-transport mechanism binary complex system explored based on parallel models. Finally, an efficient dimethyl sulfoxide-vapor annealing employed further optimize PEDOT:PSS/Te-NWs films. ZT value estimated 2.0 × 10-2 at room temperature. On basis highly enhanced performance, prototype generator consisting p-type n-type carbon nanotube fibers legs has been fabricated acceptable output power 1.28 μW temperature gradient 60 K, which could potentially applied in wearable electronics.