液晶的原子束定向

Atomic Beam Aligment of Liquid Crystals

我们发现， 液晶可以在经过低能中性氩离子束照射过的聚酰亚胺表面上取向。入射离子的能量在７５ｅＶ～５００ｅＶ之间变化； 积分电流密度在２０μＡ／ｃｍ２ ～５００μＡ／ｃｍ２之间变化； 测量取向的入射角在１０°～８０°之间变化。通过控制工艺条件。

We have found that liquid crystals can be aligned on polyimide surface exposed to a low energy and neutral argon ion beam. The energy of the incident ions was varied between 75 eV and 500 eV, the integrated current density from 20μA/cm2 to 500 μA/cm2,and the angle of incidence over which alignment was measured was between 10° and 80°. The pretilt angle of the liquid crystals could be varied between 0° and 10°, by controlling the processing conditions.