Dip-pen nanolithography of nanostructured oligofluorene truxenes in a photo-curable host matrix
Dip-pen nanolithography of nanostructured oligofluorene truxenes in a photo-curable host matrix
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DOI：
10.1039/c1jm11378j
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发表时间：
2011-01-01
影响因子：
--
通讯作者：
Graham, Duncan
中科院分区：
文献类型：
--
作者：
Hernandez-Santana, Aaron;Mackintosh, Allan R.;Graham, Duncan
我们报道了以紫外光固化预聚物为载液，通过蘸笔纳米光刻法（DPN）在二氧化硅上可控地形成纳米级低聚芴类化合物图案。在这项技术中，一个尖锐的原子力显微镜（AFM）悬臂尖端被用来转移到一个表面上的液体墨水使用压电控制的运动和良好的空间注册。然后将可光固化的载体流体暴露于UV光以产生交联的主体基质，同时保持truxenes的光致发光性质并提供抗光氧化的保护。通过拉曼显微光谱和显微光致发光，其特征在于由DPN沉积的复合结构的化学组成，以证明成功地将光致发光truxenes在聚合物基质中。
We report the controlled patterning of nano-sized oligofluorene truxenes onto silicon dioxide by dip-pen nanolithography (DPN) using a UV-curable pre-polymer as a carrier fluid. In this technique, a sharp atomic force microscope (AFM) cantilever tip is used to transfer the liquid ink onto a surface using piezo-controlled movements and excellent spatial registry. The photo-curable carrier fluid is then exposed to UV-light to produce a cross-linked, host matrix while retaining the photoluminescent properties of the truxenes and providing protection against photo-oxidation. The chemical composition of the composite structures deposited by DPN was characterised by Raman microspectroscopy and microphotoluminescence to demonstrate successful incorporation of the photoluminescent truxenes in the polymer matrix.