Amino-Functionalized Alkylsilane SAM-Assisted Patterningof Poly(3-hexylthiophene) Nanofilm Robustly Adhered to SiO2 Substrate

Bulletin of the Korean chemical society

Honglae Sohn¹  Jaegab Lee¹  Jin-Hyo Boo¹  Sungsoo Kim¹  Ilsun Pang¹ 

关键词: Poly(3-hexylthiophene);    Amino-alkylsilane;    Patterning;    Vapor phase polymerization;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

We report a novel patterning method for a homo-polymeric poly(3-hexylthiophene) (P3HT) nanofilm particularly capable of strong adhesion to a SiO2 surface. An oxidized silicon wafer substrate was micro-contact printed with n-octadecyltrichlorosilane (OTS) monolayer, and subsequently its negative pattern was selfassembled with three different amino-functionalized alkylsilanes, (3-aminopropyl)trimethoxysilane (APS), N- (2-aminoethyl)-3-aminopropyltrimethoxy silane (EDAS), and (3-trimethoxysilylpropyl) diethylenetriamine (DETAS). Then, P3HT nanofilms were selectively grown on the aminosilane pre-patterned areas via the vapor phase polymerization method. To evaluate the adhesion, patterning, and the film itself, the PEDOT nanofilms and SAMs were investigated with a Scotch? tape test, contact angle analyzer, ATR-FT-IR, and optical and atomic force microscopes. The evaluation showed that the newly developed all bottom-up process can offer a simple and inexpensive patterning method for P3HT nanofilms robustly adhered to an oxidized Si wafer surface by the mediation of FeCl3 and amino-functionalized alkylsilane SAMs.

【 授权许可】

Unknown