Abstract:
PURPOSE:To enable easy continuous accumulation of not only the same kind but also different kind of monomolecular films by providing a partition wall for segmenting the liquid surface on which molecules for film forming is spread to a plurality and a means for generating liquid flow. CONSTITUTION:A partition wall 8 for segmenting the liquid surface on which molecules for film forming are spread to a plurality and a means 7 for generating liquid flow are provided to a water tank 3 so that water is admitted by the device 7 into the partitioned blocks from near the center toward the outside periphery. For example, monomolecular films of different materials are preliminarily spread on the water surface in each block. The monomolecular films are accumulated on a substrate by using a vertical dipping method in certain block and thereafter the similar operation is repeated in another block, by which the hetero-accumulated films (the constituting molecules of the monomolecular films vary in the accumulating direction) are easily formed. As a result, the realization of the continuous accumulation and further the easy accumulation of the different kind of the monomolecular films are made possible.
Abstract:
PURPOSE:To permit easy continuous accumulation of monomolecular films and to improve the attaining rate of accumulation by providing a means for generating liquid flow and a means for decelerating the liquid flow in a liquid tank in which molecules for film forming are spread. CONSTITUTION:A means 7 for generating liquid flow and a means for decelerating said liquid flow are provided in a liquid tank 3 in which molecules for film forming are spread. For example, the depth of a water tank in a region 11 including a dropping region 9 where the surface pressure of monomolecular films 2 are formed is made as shallow as 1cm and the depth of the water tank in an accumulating region 10 is made as deep as 10cm. As a result, even if the flow rate in the region 11 for forming the surface pressure is made to 20cm/sec, the flow rate in the region 10 is about 1/10 said flow rate. The yield is increased to 50-100% when the monomolecular films are accumulated on a substrate. The continuous accumulation of the monomolecular films is thus made easy and the attaining rate of the accumulation is improved as well.
Abstract:
PURPOSE:To provide easily a monomolecular film cumulated continuously, by providing with liquid-flow generating means in the liquid bath for expanding film forming molecules, and by controlling surface pressure of the monomolecular film so as to attain a desired surface density. CONSTITUTION:On forming a thin film bearing optical functions which a logical device, a memory device and a photoelectric converting device, etc. have, the thin film consisting of organic molecules is formed with a monomolecular cumulation method. Water from a water flow generating means 7 is flowed into a water bath 3, the water surface is dammed by a barrier 8 being placed on the water bath 3 so as to overflow the excess water, and organic solution is dripped onto the water surface being dammed to form a film. That is to say, the solution of 0.1ml in which stearic acid is being melted in a solvent of chloroform at a rate of 1X10 M/l is dripped onto the dripping area 9 in the upstream surface pressure forming area 11 at a rate of 20cm/sec to produce a cumulated film on the cumulation area 10 in the monomolecular film 2 forming area near the barrier 8. Thereafter, the film 2 is transferred onto a substrate and then the cumulating operation is repeated.
Abstract:
PURPOSE:To make small the rotation of molecular and improve accummulation rate at the time of transferring single molecular film from the liquid surface by providing a level difference to the liquid surface where molecular is developed and forming a single molecular film or single molecular accummulation film consisting of such molecular on a carrier. CONSTITUTION:In the case of using a partitioning plate 5 as a means for giving level difference to the liquid surfaces where single molecular film is developed, after a cylinder 2 is set, the liquids 3 and 4 are supplied from the poring hole to the cylinder 1 and the portions A and B of container 1 partitioned by the partitioning plate 5. For example, the liquid surface of liquid 3 in the part B of container 1 is set lower than the liquid surface of liquid 4 in the part A and the liquids 3, 4 are supplied, the single molecular film is developed on the respective liquid surfaces of liquids 3, 4 and the cylinder 2 is rotated counterclockwise. Thereby, a single molecular accummulated film consisting of single molecular film in the predetermined accummulation degree having the improved accummulation coefficient can be formed on the cylinder 2.
Abstract:
Method and apparatus for continuously forming and depositing a layer of monomolecular amphiphilic molecules on a substrate. The apparatus of the present invention includes static mechanical means comprising a pump which is supported outside the lower portion of the tank (310) and connected by conduits to compartment (310a) which is designed as a continuous chute around compartment (310b). It is in compartment (310b) that the compressed monomolecular layer films are deposited onto a substrate. The water flows in the direction indicated by arrows. The pump pulls the transport liquid through a conduit and out of compartment (310b), and pushes said liquid through other conduits and into compartment (310a) which is separated from compartment (310b) by continuous chute (310d). The compartment (310c) receives the monomolecular layer solution.
Abstract:
A movable barrier and an auxiliary movable barrier are disposed inside a trough and they can be driven freely with their interrelationship kept constant. The amount of a moving monomolecular film is the same for both of them to prevent disturbance of the flow of the monomolecular film and deposition on a substrate is carried out at a uniform molecular density. The width of the substrate is the same as the length of the movable barrier or the width of the auxiliary movable barrier.