“…LC cubic BPs have attracted significant research interest because they have potential for application in advanced photonic devices as three-dimensional (3D) PCs . Cubic BPs have a double-twisted cylinder (DTC) structure, and the self-assembly of DTCs in 3D space determines their peculiar periodic lattice structures. , Cubic BPs can be categorized into two types, namely, a simple-cubic BP (BPII) and a body-centered-cubic BP (BPI), in the order of decreasing temperature. ,,, In general, each cubic BP makes a brief appearance, typically 0–2 °C, in the temperature range between the high-temperature isotropic (Iso) phase and the low-temperature N* phase. This narrow temperature range limits their utility in practical applications.…”