# US 12,004,414 B2 · Method for manufacturing device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,004,414 B2 - Document ID: US12004414B2 - Status: Granted - Kind: B2 - Application number: 16/972,518 - Filed: 2019-09-18 - Published: 2021-09-02 - Granted: 2024-06-04 - Earliest claimed: 2018-09-18 - Assignees: LG Chem, Ltd. - Applicants: LG Chem, Ltd. - Inventors: Yongnam Kim; Jong Seok Kim; Yun Hye Hahm; Seiyong Kim - Web page: https://patentgrep.com/patent/US12004414B2 ## CPC - H10F 77/244: {made of transparent conductive layers, e.g. transparent conductive oxide [TCO] layers} - H10F 71/138: {Manufacture of transparent electrodes, e.g. transparent conductive oxides [TCO] or indium tin oxide [ITO] electrodes} - H10F 77/211: {for photovoltaic cells} - H10K 30/82: Transparent electrodes, e.g. indium tin oxide [ITO] electrodes - H10K 30/821: {comprising carbon nanotubes} - H10K 71/50: Forming devices by joining two substrates together, e.g. lamination techniques - H10K 85/50: Organic perovskites; Hybrid organic-inorganic perovskites [HOIP], e.g. CH3NH3PbI3 - H10K 30/10: comprising heterojunctions between organic semiconductors and inorganic semiconductors - H10K 30/40: comprising a p-i-n structure, e.g. having a perovskite absorber between p-type and n-type charge transport layers - H10K 30/50: Photovoltaic [PV] devices - Y02E 10/549: Organic PV cells - Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product - H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS ## Abstract A method for manufacturing a device, the method including: preparing a first laminate including a first buffer layer and a second buffer layer; preparing a second laminate including a third buffer layer provided on a carbon electrode; and attaching the first laminate to the second laminate so that the second buffer layer is in contact with the third buffer layer. ## Claims ### Claim 1 A method for manufacturing a device, the method comprising: preparing a first laminate comprising a first buffer layer and a second buffer layer; preparing a second laminate comprising a third buffer layer provided on a carbon electrode; and attaching the first laminate to the second laminate so that the second buffer layer is in contact with the third buffer layer, wherein the carbon electrode comprises a first carbon material and a second carbon material which are different from each other, and wherein when attaching the first laminate to the second laminate, both the second buffer layer and the third buffer layer are in a semi-cured state. ### Claim 2 (depends on 1) The method of claim 1, wherein the first laminate further comprises a first electrode and an exciton generation layer, and preparing the first laminate comprises: providing the first buffer layer on the first electrode; providing the exciton generation layer on the first buffer layer; and providing the second buffer layer on the exciton generation layer. ### Claim 3 (depends on 2) The method of claim 2, wherein the exciton generation layer is a light absorbing layer. ### Claim 4 (depends on 3) The method of claim 3, wherein the light absorbing layer comprises a compound having a perovskite structure. ### Claim 5 (depends on 1) The method of claim 1, wherein the preparing of the second laminate comprises: preparing the carbon electrode; applying a composition for forming the third buffer layer onto the carbon electrode; and semi-curing the composition to form the third buffer layer. ### Claim 6 (depends on 5) The method of claim 5, wherein the semi-curing of the composition for forming a third buffer layer comprises photo curing or thermally curing the composition. ### Claim 7 (depends on 1) The method of claim 1, wherein the first and second carbon materials are independently one or more selected from the group consisting of carbon nanotube (CNT), graphite, graphene, graphene oxide, activated carbon, mesoporous carbon, carbon fiber, conductive carbon black, and carbon nano wire. ### Claim 8 (depends on 7) The method of claim 7, wherein the carbon electrode further comprises a binder. ### Claim 9 (depends on 1) A device manufactured by the manufacturing method according to claim 1. ### Claim 10 (depends on 9) The device of claim 9, wherein the device comprises: a first electrode; the first buffer layer provided on the first electrode; an exciton generation layer provided on the first buffer layer; the second buffer layer provided on the exciton generation layer; the third buffer layer provided on the second buffer layer; and the carbon electrode provided on the third buffer layer. ### Claim 11 (depends on 9) The device of claim 9, wherein the device comprises: a first electrode; the first buffer layer provided on the first electrode; an exciton generation layer provided on the first buffer layer; a fourth buffer layer provided on the exciton generation layer; and the carbon electrode provided on the fourth buffer layer. ### Claim 12 (depends on 1) The method of claim 1, wherein the attaching of the first laminate to the second laminate further comprises performing curing during or after the attaching of the first laminate to the second laminate. ### Claim 13 (depends on 1) The method of claim 1, wherein the first buffer layer is composed of a single layer or multiple layers. ### Claim 14 (depends on 1) The method of claim 1, wherein the device is selected from the group consisting of an organic-inorganic hybrid solar cell, an organic solar cell, an organic light emitting diode (OLED), and an organic photodiode. ### Claim 15 (depends on 1) The method of claim 1, wherein the first buffer layer comprises one or more selected from the group consisting of a Cu-based inorganic material, a metal oxide, and a fullerene derivative. ### Claim 16 (depends on 1) The method of claim 1, wherein the second buffer layer and the third buffer layer each comprises one or more selected from the group consisting of an inorganic material, an organic compound, and a polymer.