Electric Field Induced Phase Transitions in Liquid-Crystalline Blue Phases

Abstract
Voltage/temperature phase diagrams of liquid-crystalline blue phase (BP) systems CB 15/M 18 and CB 15/E 9 have been determined by means of polarizing microscopy. Above a certain threshold voltage a field-induced BP occurs which is stable in a region of the U/T diagram between the BPI and BPII.