Ordered CdSe nanoparticles within self-assembled block copolymer domains on surfaces.
Ordered CdSe nanoparticles within self-assembled block copolymer domains on surfaces.
复制标题
表面自组装嵌段共聚物域内的有序 CdSe 纳米颗粒。
DOI：
10.1021/la0629274
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
Walker,GilbertC
中科院分区：
文献类型：
--
作者：
Zou,Shan;Hong,Rui;Emrick,Todd;Walker,GilbertC
Hierarchical, high-density, ordered patterns were fabricated on Si substrates by self-assembly of CdSe nanoparticles within ∼20-nm-thick diblock copolymer films in a controlled manner. Surface-modified CdSe nanoparticles formed well-defined structures within microphase-separated polystyrene-b-poly(2-vinylpyridine) (PS-b-P2VP) domains. Trioctylphosphine oxide (TOPO)-coated CdSe nanoparticles were incorporated into PS domains and polyethylene glycol-coated CdSe nanoparticles were located primarily in the P2VP domains. Nearly close-packed CdSe nanoparticles were clearly identified within the highly ordered patterns on Si substrates by scanning electron microscopy (SEM). Contact angle measurements together with SEM results indicate that TOPO-CdSe nanoparticles were partially placed at the air/copolymer interface.
