Fig. 1: Humidity dependence of hydroxyazobenzene isomerisation kinetics. | Communications Materials

Fig. 1: Humidity dependence of hydroxyazobenzene isomerisation kinetics.

From: Strategies to control humidity sensitivity of azobenzene isomerisation kinetics in polymer thin films

Fig. 1: Humidity dependence of hydroxyazobenzene isomerisation kinetics.

a Changes in absorption spectrum of CN-OH in P4VP film in response to UV illumination (385 nm, ~300 mW · cm−2, 100 ms pulse) and the subsequent cis–trans thermal relaxation. b Scheme of the main pathways for cis–trans isomerisation of tautomerizable hydroxyazobenzene. c Effect of relative humidity on the thermal isomerisation kinetics of CN-OH in P4VP thin film at 22 °C, measured at 365 nm. Inset: comparison between the humidity dependency of thermal isomerisation rates, k, of CN-OH and 2PAP in P4VP at 22 °C.

Back to article page