Fig. 1: Characteristic FI-ESR curves on ion-gel-gated rubrene.
From: Long spin lifetimes of charge carriers in rubrene crystals due to fast transient-localization motion
a A schematic of the capacitor architecture (left) and an image of an actual device (right). In the schematic, the gold rectangles are electrodes, the orange rectangle rubrene, the dark-gray rectangle the ion gel, and the large, translucent blue rectangle the substrate. b The evolution of the observed ESR signal with increasing gate voltage. c A representative ESR spectrum at bias voltage − 1.2 V and temperature 290 K for our ion-gel-gated rubrene devices. The black dots are raw data points, and the red curve is the fitting result.
