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. Author manuscript; available in PMC: 2018 Mar 23.
Published in final edited form as: ACS Appl Mater Interfaces. 2017 May 8;9(19):16725–16733. doi: 10.1021/acsami.7b04881

Figure 2.

Figure 2

Versatile BP capabilities: (a) Plot of pattern line width vs incident laser intensity. The linear fitting shows the on-demand capability of tuning the patterning dimensions by the laser power. (b) BP of red QDs into a contour of a butterfly, as shown in fluorescence image. The line width is 1 μm. (c) Bright-field image of a Charlie Chaplin pattern of QDs via raster scanning in BP. The overall size is 120 μm × 90 μm with 1 μm line space. (d, e) Bright-field and fluorescence images (tetramethylrhodamine isothiocyanate filter set) of Mona Lisa printed with red QDs using a raster scanning approach. The size of the complete image is 150 μm × 90 μm. (f) Magnified fluorescence image depicting the high-resolution patterning capability of BP. (g) FLIM of the QDs showing high-density uniform patterning capability of BP. (h) Fabrication of a microscale (80 μm × 80 μm) QR code with blue QDs printed via raster scanning. The scale bar is 25 μm.