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Thermochromic luminescence is characteristic of the title system, which is fabricated by layer-by-layer assembly of anionic bis(2-sulfonatostyryl)biphenyl (BSB) and positively charged layered double hydroxide (LDH) nanosheets on quartz glass. The BSB/LDH films show fast luminescent response and switching properties, including changes in color (see picture), fluorescence lifetime, and anisotropy in the range 20–100 °C.
Yan et al. (Fri,) studied this question.