高分子传感材料 主 讲 人：孙景志 办 公 室：高分子大楼 121 实 验 室：高分子大楼 201-204, 428 电 话：87953734；13958091775 电 邮：sunjz@zju.edu.cn

Figure 1. Structure of a phosphor (Br6A) and polymer (PMMA).

Figure 3. c) Phosphorescence quantum yield with various isotactic content. The excitation wavelength was 365 nm. Figure 2. PL emission spectra of Br6A and Br6A embedded in iPMMA, aPMMA and sPMMA. The excitation wavelength was 365 nm.

Figure 4. Phosphorescence emission of Br6A embedded in a) atactic PMMA, b) syndiotactic PMMA, and c) isotactic PMMA at different temperatures. d) Blue fluorescence emission of pure Br6A visible in part due to a lack of green phosphorescence also at these temperatures. The excitation wavelength was 365 nm.

Figure 6. Phosphorescence lifetime at different phosphor concentrations. Samples were annealed at 90 oC for 20 min. Lifetime was monitored by the emission wavelength at 520 nm. Figure 5. Phosphorescence quantum yield at different phosphor concentrations for Br6A embedded in iPMMA. The excitation wavelength was 365 nm.

Figure 7. Normalized emission intensities for Br6A embedded in i-PMMA at different temperatures excited at 365 nm.

Figure 8. The in situ phosphorescence spectra in a heating and cooling cycle in the temperature range of 30-60 oC. The excitation wavelength was 365 nm.

Figure 9. The in situ phosphorescence intensities during 6 cycles.

Figure 10. Schematic fabrication process and operation of a microfluidic device composed of a phosphorescence layer (Br6A in iPMMA) and a PDMS channel layer. Phosphorescence emission intensity under 365 nm UV light increases linearly from the hot to the cold side channel. Scale bar = 100 m.

Thanks for your attention!