{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9786804","patent":{"patent_number":"US-9786804","title":"Thin-film solar cell and production method for thin-film solar cell","assignee":null,"inventors":[],"filing_date":"2014-06-19T00:00:00.000Z","publication_date":"2017-10-10T00:00:00.000Z","cpc_codes":["H01L","H01L"],"num_claims":3,"abstract":"A thin-film solar cell comprising a substrate, a first electrode layer arranged upon the substrate, a p-type light absorption layer formed by a group I-III-IV2 compound arranged upon the first electrode layer, and an n-type second electrode layer arranged upon the p-type light absorption layer. The p-type light absorption layer includes Cu as a group 1 element and includes Ga and In as group III elements. The ratio of the atomic number between Cu and the group III elements in the entire p-type light absorption layer is lower than 1.0; the ratio of the atomic number between Ga and the group III elements in the surface on the second electrode layer side is no more than 0.13; and the ratio of the atomic number between Cu and the group III elements in the surface on the second electrode layer side is at least 1.0."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Thin-film solar cell and production method for thin-film solar cell","description":"A thin-film solar cell comprising a substrate, a first electrode layer arranged upon the substrate, a p-type light absorption layer formed by a group I-III-IV2 compound arranged upon the first electro","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9786804","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9786804","citation_suggestion":"Patentable. \"Thin-film solar cell and production method for thin-film solar cell\" (US-9786804). https://patentable.app/patents/US-9786804","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9786804","json":"https://patentable.app/api/llm-context/US-9786804","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:58:28.061Z"}