APPLICATION OF ELECTRICAL CONDUCTORS OF A SOLAR CELL

• Main Authors: ELFASSY NAOMI, LANDA BENZION, THYGELBAUM STANISLAV
• Format: Patent
• Language: English; Korean
• Published: 13.12.2022
• Subjects: BASIC ELECTRIC ELEMENTS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PRINTED CIRCUITS; SEMICONDUCTOR DEVICES

전도성 입자를 포함하는 조성물로 그루브를 로딩하는, 가요성 멤브레인에 그의 제1 표면 상에 형성된 그루브의 패턴을 제공하는 단계를 포함하는, 전기 전도체를 태양 전지에 도포하기 위한 방법이 개시된다. 조성물은 전기 전도성이거나 전기 전도성으로 제조될 수 있다. 멤브레인이 로딩되면, 멤브레인의 그루브가 있는 제1 표면은 태양 전지의 전방 및/또는 후방과 접촉하게 된다. 그 다음 압력이 태양 전지와 멤브레인 사이에 인가되어 그루브에 로딩된 조성물이 태양 전지에 부착된다. 멤브레인과 태양 전지가 분리되고 그루브 내의 조성물이 태양 전지 표면에 남는다. 그 다음, 조성물 내의 전기 전도성 입자는 소결되거나 그렇지않으면 융합되어 태양 전지 상에 전기 전도체의 패턴을 형성하며, 패턴은 멤브레인에 형성된 패턴에 대응한다. A method of applying a pattern of electrical conductors to an electrically insulating substrate is disclosed which comprises:a) providing a flexible membrane having a layer made of a formable plastics polymer capable of being embossed or cast, wherein a first surface of the membrane has a pattern of grooves embossed or cast therein, the pattern corresponding at least partially to a desired pattern of electrical conductors to be applied to the substrate;b) loading into the grooves of the first surface of the membrane a composition that includes, as composition components, electrically conductive particles and an adhesive, said loading being performed in two or more filling cycle(s) such that on completion of loading the composition substantially fills the grooves, level with the first surface of the membrane, and parts of the first surface between the grooves are substantially devoid of the composition;c) contacting the membrane with the substrate with the first surface of the membrane facing the substrate;d) applying pressure to the membrane to cause the composition loaded into the grooves in the first surface of the membrane to adhere to the substrate;e) separating the membrane from the substrate to transfer the composition from the grooves in the first surface of the membrane to the substrate; andf) applying sufficient energy to sinter the electrically conductive particles and to render electrically conductive the pattern of composition transferred to the substrate from the grooves;wherein the membrane is flexible enough to conform to the surface of the substrate so as to permit sufficiently intimate contact with the surface of the substrate so as to enable transfer of the composition loaded into the grooves in step (b) onto the substrate in step (e) in the absence of any adhesive layer on the substrate.