標題: | Solvent-Annealing-Induced Self-Organization of Poly(3-hexylthiophene), a High-Performance Electrochromic Material |
作者: | Huang, Jen-Hsien Yang, Chuan-Yi Hsu, Chih-Yu Chen, Cheng-Lun Lin, Lu-Yin Wang, Rui-Ren Ho, Kuo-Chuan Chu, Chih-Wei 光電工程學系 Department of Photonics |
關鍵字: | electrochromic;electrochemistry;conjugated polymer;poly(3-hexylthiophene);solvent annealing;self-organization |
公開日期: | 1-十二月-2009 |
摘要: | We have systematically studied the self-organization of poly(3-hexylthiophene) (P3HT), an electrochromic material, upon control of the solvent evaporation race. We characterized these polymer films using atomic force microscopy and X-ray diffraction measurements. Well-ordered P3HT structures were developed after solvent annealing; these highly crystalline structures exhibited enhanced electrochromic contrast and reduced resistance within the film, leading to larger coloration efficiencies and faster switching times. The optical contrast (Delta%T), coloration efficiency, and switching time of the P3HT films increased from 54.2%, 182,6 cm(2) C(-1), and 5.3 s, respectively, prior to solvent annealing to 64.8%, 293.5 cm(2) C(-1), and 3.2 s, respectively, after application of the solvent-annealing conditions. |
URI: | http://dx.doi.org/10.1021/am900573q http://hdl.handle.net/11536/6371 |
ISSN: | 1944-8244 |
DOI: | 10.1021/am900573q |
期刊: | ACS APPLIED MATERIALS & INTERFACES |
Volume: | 1 |
Issue: | 12 |
起始頁: | 2821 |
結束頁: | 2828 |
顯示於類別: | 期刊論文 |