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Multicolor Emission on Prepatterned Substrates Using a Single Dye Species


  • This work is supported by the National Natural Science Foundation of China (NSFC Grant No. 20373019, 50520130316); the Program for New Century Excellent Talents in University, by the China–Ireland Research Collaboration Project (CI-2004-05), by 111 Project (B06009), the Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT Grant No. IRT0422), and the National Basic Research Program (2002CB613401, 2007CB808003). This material is also based upon works supported by the Science Foundation Ireland under Grant No. 02/IN.1/I172 and by the EC-funded project NaPa (Contract no. NMP4-CT-2003-500120). The authors are grateful to Dr. D. Fuard for some of the stamps used in nanoimprint lithography.


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A new strategy for realizing patterned surfaces with different emission colors is demonstrated. This approach relies on the gas-phase deposition of dye molecules onto solid substrates that are prepatterned by nanoimprint lithography (see figure). Only a single molecular species is involved. Thus, the observed color change and corresponding spectral shift in the emission properties depends on the substrate used and can be tuned by surface engineering.

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