Fig. 7: Optically induced current response of reference complexes before and after the light irradiation.

a Absence of photoinduced current release during the temperature range of 10–300 K for [CoCo](PF6)3. b Absence of light-induced polarization changes for [CoCo](PF6)3. c Absence of photoinduced current release for [CrCo](PF6)3. d Absence of light-induced polarization changes for [CrCo](PF6)3. Temperature sweep rate for these pyroelectric measurements is 5 K min−1.