本論文主要為摻混兩個彎曲型液晶分子並量測摻混後物性以及光電性質，化合物分別為：中心苯環4位置為氫取代具有B2相的1,3-Bis[4-(4-decyloxy- benzoyloxy)benzoyloxy] benzene (B-10) 以及中心苯環4位置氯取代具有向列相的 (2) 4-Chloro-1,3-bis[4-(4-decyloxybenzoyloxy)benzoyloxy]benzene(B-10-Cl)。將B-10-Cl掺混至B-10中掺混濃度為0%~100%。當掺混濃度為0%~60%時仍能維持住具有反鐵電性的B2相。掺混濃度為70%時為不具有光電特性的未知相X相。當掺混濃度達到80%~100%時，液晶相為向列相。
在光電性質測量方面，發現自發極化值隨著掺混濃度上升而下降，應答速率則隨著掺混濃度上升而上升。另外，印加高電場三角波時可觀察到focal conic texture及fan with stripes texture.

Binary system of two mesogens exhibited antiferroelectric B2 phase (B-10)and nematic phase (B-10-Cl) was investigated. These compounds were as 1,3-Bis[4-(4-decyloxy- benzoyloxy)benzoyloxy] benzene and 4-Chloro-1,3-bis[4-(4-decyloxybenzoyloxy)benzoyloxy]benzene。When doping the molar ratio of B-10-Cl is below 60%, B2 phase appears and identified by electro-optic experiment which applied triangular wave voltage and has two peaks of response current in half period. When doping the molar ratio of B-10 is 70%, exhibited an unknown mesophase ,X phase and have no current response. When doping the molar ratio of B-10 is above 70%, only possess directional nematic phase.
In the electro-optical experiment, we find that the spontaneous polarization value becomes larger but response time becomes smaller when the molar ratio of B-10-Cl rise. When apply high voltage of triangular wave, focal conic texture and fan with stripes texture were observation.

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