ESD法を用いた二種類配向材塗布による双安定界面の形成

摘要

The ESD method is known as one of the film forming methods. A solution is sprayed by repulsion of electrostatic force and the tiny size of materials can be deposited on the substrate surface when a high voltage is applied between the capillary and the substrate. In a previous our study, a bistable surface was fabricated, when PVCi was deposited by ESD method on the substrate which was formed with horizontal alignment film, however, there is a problem with the quality of the forming film.rnIn this report, novel methods to improve the conventional methods are proposed. Two capillaries and two kinds of alignment materials are used. And, each solution of alignment material was sprayed from capillaries at the same time or alternately. The reproducibility of the film forming could be improved by these methods.%有機材科の薄膜形成や，質量分析計のイオナイザーとして広く利用されているElectro Spray（ES）法と呼ばれる溶液を散布する方法がある．これは，キヤピラリーと基板間に高電圧を印加することで，電界集中によりキヤピラリー中の液体が同符号に帯電し，キヤピラリー先端にテイラーコーンと呼ばれるコーンが形成される．その後，同符号に帯電した液滴がクーロンカによる電気的な斥力によってコーンの表面張力を打ち破りジェットとなってスプレーされる．