Fig. 2: Photoluminescence characteristic of TPP3Cu2Br2. | Light: Science & Applications

Fig. 2: Photoluminescence characteristic of TPP3Cu2Br2.

From: Luminescence lifetime thermometers based on hybrid cuprous halides with exceptional water resistance and giant thermal expansion

Fig. 2

a UV-vis absorption spectrum of TPP3Cu2Br2. b Steady-state PL excitation (left) and PL emission (right) spectra of TPP3Cu2Br2. c PL decays of TPP3Cu2Br2 by monitoring the emission at 524 nm (λex = 355 nm). d Excitation wavelength-dependent emission spectra with the excitation wavelength from 280 to 360 nm. e Temperature-dependent emission spectra ranging from 80 to 300 K (λex = 355 nm). f Integral intensity of temperature-dependent emission spectra in the temperature range 80 to 300 K. g FWHM as a function of temperature. Data are fitted based on Eq. (1)

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