Fig. 5: Mechanism of photochromism and photoluminescence modulation. | Nature Communications

Fig. 5: Mechanism of photochromism and photoluminescence modulation.

From: Visible colorimetric dosimetry of UV and ionizing radiations by a dual-module photochromic nanocluster

Fig. 5: Mechanism of photochromism and photoluminescence modulation.

a EPR spectra of Th-SINAP-100 before and after irradiation. b Optimized structures of the experimentally synthesized complex and selected simplified models of Th-SINAP-100 (TS). c Orbital diagrams of the 364 nm electron transitions for TS-d1 from the TD-DFT calculations. d The formation of excimer (TS-TS)* that is stabilized by charge transfer, along with the light emitted by (TS−TS)* and TS* + TS.

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