POS5-0184
Kinetically Induced Phase Transition of Plastic Crystals
When and Where
Nov 30, -0001
00:00 - 00:00
Presenter(s)
Chankyu Kim (Sogang University)
Co-Author(s)
Abstract
Plastic crystals are a class of solid-state ionic conductors that retain positional order while exhibiting orientational disorder, placing them in an intermediate state between crystalline solids and liquids. Succinonitrile (SN) is a representative plastic crystal widely explored for its compatibility with flexible electronics and solid-state ionics, including polymer electrolyte systems, yet active and reversible control of its physical properties through external stimuli has not been explored. Here, we demonstrate that the phase transition of SN can be kinetically induced by electrically modulating ion injection within a tri-layer structure, sandwiched between two oppositely charged ionoelastomers. By applying voltage, ions are injected or extracted from SN-containing layer, disrupting the orientational order of the plastic crystal and inducing measurable changes in its properties. These results establish the voltage-driven ion injection serves as an effective handle for actively triggering phase transitions of plastic crystals. Beyond electrical properties, we anticipate that this approach will extend to mechanical property modulation, offering a pathway toward voltage-programmable control of both ionic and mechanical properties in soft ionic materials.
