Photolithography-Compatible Templated Patterning of Functional Organic Materials in Emulsion.

Kai Zhang,Huaping Zhao,Yun Meng,Minghong Wu,Wenchong Wang,Xiaoyong Deng,Qun Fu,Yong Lei

doi:10.1002/advs.201500304

Abstract

A solution-processed patterning of functional organic materials in emulsion is reported. The concept is to absorb microdrops onto predefined locations by hydrophilicity difference. Owing to a universal solvent used, the method can be applied to pattern variety materials on substrates of interest over large size. The figure shows Rhodamine 6G patterned film.

Highlights

Functional organic materials are the carbon-based molecules with advanced optic and/or electronic properties.[1,2] Owing to the extensive applications such as organic electronics and dye labeling, the materials have attracted much attention in last three decades.[3,4] In many cases, in organic electronics, patterning of the organic materials is a crucial step for improving device performances and integration level.[5]
Au patterned Octadecyltrichlorosilane (OTS) modified SiO2 templates (Figure 1c), which were prepared by standard photolithography as shown in Figure 1d, were immersed into the dyeddimethyl sulfoxide (DMSO)/hexane emulsion for several minutes to absorb the dyed DMSO droplets onto Au (Figure 1e)
The dyed DMSO goes to the bottom of hexane owing to the high density, shown in Figure 2a in red color

Summary

Introduction

Functional organic materials are the carbon-based molecules with advanced optic and/or electronic properties.[1,2] Owing to the extensive applications such as organic electronics and dye labeling, the materials have attracted much attention in last three decades.[3,4] In many cases, in organic electronics, patterning of the organic materials is a crucial step for improving device performances and integration level.[5].

Results

Conclusion