A micro-mirror device includes a substrate having a surface, and a plate spaced
from and oriented substantially parallel to the surface of the substrate such that
the plate and the surface of the substrate define a cavity therebetween. A dielectrophoretic
liquid capable of movement when an electrical signal is applied to the micro-mirror
device is disposed in the cavity, and a reflective element is interposed between
the surface of the substrate and the plate such that the reflective element is
adapted to move between a first position and at least one second position. The
dielectrophoretic liquid includes at least one compound selected from the group
consisting of siloxanes and silanes substantially free of asymmetrical ether linkages.