Synthesis and Optoelectronic Studies of Nanotube-Bound poly(3-hexylthiophene)
| Autor: | Li,Fangci, 李舫綺 |
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| Rok vydání: | 2011 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 99 With an aim to improve the hole mobility of P3HT, carbon nanotubes (CNTs) have recently been incorporated into P3HT. The advantages of CNTs over other nanomaterials arise from good conductivity,and excellent chemical stability. Particularly, multi-walled carbon nanotubes (MWCNTs) have widely been used as a conduction bridge because of high conductivity and relatively high work function.However,since it is well-know that homogeneous distributions of CNTs in polymer is difficult to achieve,it is expected that P3HT-MWNTs can improve the dispersion when the organic thin film transistors (OTFT) fabricated with it. In this work, multiple-walled carbon nanotubes (MWNTs) were chemically modified by a ligand-exchange reaction of ferrocene (Cp-Fe-MWNTs).The modified MWNTs (Cp-Fe-MWNTs) were next monolithiated by sec-butyllithium and functionalized by poly (3-hexylthiophene)(rr-P3HT).In the second part, H-NMR, TGA, DSC, UV/Vis, SEM, TEM, and Four-Probe were used to analyze the material P3HT-MWNTs. Finally, the P3HT-MWNTs composite blended with pure P3HT was used as the semi-conducting layer for fabricating on Organic Thin Film Transistors(OTFTs). P3HT-MWNTs have been successfully synthesized and homogeneously dispersed in P3HT matrix for the purpose of obtaining high field-effect mobility of P3HT. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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