Site-Selective Doping of Dyes into Polystyrene-block-Poly(4-vinyl pyridine) Diblock Copolymer Films and Selective Laser Ablation of the Dye-Doped Films
Site-Selective Doping of Dyes into Polystyrene-block-Poly(4-vinyl pyridine) Diblock Copolymer Films and Selective Laser Ablation of the Dye-Doped Films
复制标题
将染料定点掺杂到聚苯乙烯-嵌段-聚（4-乙烯基吡啶）二嵌段共聚物薄膜中以及染料掺杂薄膜的选择性激光烧蚀
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
A. Itaya
中科院分区：
文献类型：
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作者：
Zhixian Wang;Sadahiro Masuo;S. Machida;A. Itaya
研究了将染料位点选择性掺杂到具有不同相分离结构的聚苯乙烯-嵌段-聚(4-乙烯基吡啶)(PS-b-P4VP)二嵌段共聚物的旋涂薄膜中以及所制备的染料掺杂薄膜的掺杂剂诱导的激光烧蚀。通过将薄膜浸入含有染料的甲醇溶液中，将染料选择性掺杂到P4VP部件中，其中驱动力是由吡啶基的氮原子与染料的羧基之间的氢键诱导的。讨论了染料在甲醇溶液中吸附过程的示意图。对染料掺杂的嵌段共聚物薄膜进行掺杂剂诱导的激光烧蚀，仅烧蚀染料掺杂的 P4VP 部分。讨论了影响选择性烧蚀的因素，例如染料、相分离结构的形态、二嵌段共聚物的数均分子量和辐照环境。
The site-selective doping of dyes into spin-cast thin films with different phase separation structures of polystyrene-block-poly(4-vinyl pyridine) (PS-b-P4VP) diblock copolymers and the dopant-induced laser ablation of the dye-doped films fabricated were investigated. The selective doping of dyes into P4VP parts was carried out by immersing the films in a methanol solution containing the dyes, in which the driving force was induced by hydrogen bonds between the nitrogen atoms of pyridyl groups and the carboxylic groups of the dyes. Schematic models for the adsorption process of the dyes in the methanol solution were discussed. Dopant-induced laser ablation was carried out on the dye-doped block copolymer films, resulting in the ablation of dye-doped P4VP parts only. Factors affecting selective ablation, such as dyes, the morphologies of phase separation structures, the number-average molecular weights of the diblock copolymers, and irradiation environments, were discussed.