{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:YZY3ZCZLJPB45RYZCHFVIMYEGL","short_pith_number":"pith:YZY3ZCZL","schema_version":"1.0","canonical_sha256":"c671bc8b2b4bc3cec71911cb54330432cad2f747b6ada92299593ebd6522c855","source":{"kind":"arxiv","id":"1810.12262","version":1},"attestation_state":"computed","paper":{"title":"High Open Circuit Voltages in pin-Type Perovskite Solar Cells through Strontium Addition","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.app-ph","authors_text":"Bernd Rech, Christian M. Wolff, Dieter Neher, Fengshuo Zu, Jos\\'e A. M\\'arquez Prieto, Martin Stolterfoht, Norbert Koch, Pietro Caprioglio, Steve Albrecht, Thomas Unold","submitted_at":"2018-10-29T17:21:28Z","abstract_excerpt":"The incorporation of even small amounts of strontium (Sr) into lead-based quadruple cation hybrid perovskite solar cells results in a systematic increase of the open circuit voltage (Voc) in pin-type perovskite solar cells. We demonstrate via transient and absolute photoluminescence (PL) experiments how the incorporation of Sr significantly reduces the non-radiative recombination losses in the neat perovskite layer and specifically at the perovskite/C60 interface. We show that Sr segregates at the perovskite surface, where it induces important changes of morphology and energetics. Notably, the"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1810.12262","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-10-29T17:21:28Z","cross_cats_sorted":[],"title_canon_sha256":"0227aba7399777e0419de1ab18b7d8fdd4b2547954c603f0934e38a61991fb89","abstract_canon_sha256":"2744cf59de9d21ff0af6f188c770ae7c5072afedff4d50e75cd35b7363101eae"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:02:03.778031Z","signature_b64":"klahAz9l/+w2yn7araptq0Rs+MMqxJUq6+sBKJ4jg/FeOl0BDz1zugmaaJCv9Yy6M52XJ3WbSkABdsOcqeIDCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c671bc8b2b4bc3cec71911cb54330432cad2f747b6ada92299593ebd6522c855","last_reissued_at":"2026-05-18T00:02:03.777361Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:02:03.777361Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"High Open Circuit Voltages in pin-Type Perovskite Solar Cells through Strontium Addition","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.app-ph","authors_text":"Bernd Rech, Christian M. Wolff, Dieter Neher, Fengshuo Zu, Jos\\'e A. M\\'arquez Prieto, Martin Stolterfoht, Norbert Koch, Pietro Caprioglio, Steve Albrecht, Thomas Unold","submitted_at":"2018-10-29T17:21:28Z","abstract_excerpt":"The incorporation of even small amounts of strontium (Sr) into lead-based quadruple cation hybrid perovskite solar cells results in a systematic increase of the open circuit voltage (Voc) in pin-type perovskite solar cells. We demonstrate via transient and absolute photoluminescence (PL) experiments how the incorporation of Sr significantly reduces the non-radiative recombination losses in the neat perovskite layer and specifically at the perovskite/C60 interface. We show that Sr segregates at the perovskite surface, where it induces important changes of morphology and energetics. Notably, the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.12262","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1810.12262","created_at":"2026-05-18T00:02:03.777470+00:00"},{"alias_kind":"arxiv_version","alias_value":"1810.12262v1","created_at":"2026-05-18T00:02:03.777470+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.12262","created_at":"2026-05-18T00:02:03.777470+00:00"},{"alias_kind":"pith_short_12","alias_value":"YZY3ZCZLJPB4","created_at":"2026-05-18T12:33:04.347982+00:00"},{"alias_kind":"pith_short_16","alias_value":"YZY3ZCZLJPB45RYZ","created_at":"2026-05-18T12:33:04.347982+00:00"},{"alias_kind":"pith_short_8","alias_value":"YZY3ZCZL","created_at":"2026-05-18T12:33:04.347982+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/YZY3ZCZLJPB45RYZCHFVIMYEGL","json":"https://pith.science/pith/YZY3ZCZLJPB45RYZCHFVIMYEGL.json","graph_json":"https://pith.science/api/pith-number/YZY3ZCZLJPB45RYZCHFVIMYEGL/graph.json","events_json":"https://pith.science/api/pith-number/YZY3ZCZLJPB45RYZCHFVIMYEGL/events.json","paper":"https://pith.science/paper/YZY3ZCZL"},"agent_actions":{"view_html":"https://pith.science/pith/YZY3ZCZLJPB45RYZCHFVIMYEGL","download_json":"https://pith.science/pith/YZY3ZCZLJPB45RYZCHFVIMYEGL.json","view_paper":"https://pith.science/paper/YZY3ZCZL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1810.12262&json=true","fetch_graph":"https://pith.science/api/pith-number/YZY3ZCZLJPB45RYZCHFVIMYEGL/graph.json","fetch_events":"https://pith.science/api/pith-number/YZY3ZCZLJPB45RYZCHFVIMYEGL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YZY3ZCZLJPB45RYZCHFVIMYEGL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YZY3ZCZLJPB45RYZCHFVIMYEGL/action/storage_attestation","attest_author":"https://pith.science/pith/YZY3ZCZLJPB45RYZCHFVIMYEGL/action/author_attestation","sign_citation":"https://pith.science/pith/YZY3ZCZLJPB45RYZCHFVIMYEGL/action/citation_signature","submit_replication":"https://pith.science/pith/YZY3ZCZLJPB45RYZCHFVIMYEGL/action/replication_record"}},"created_at":"2026-05-18T00:02:03.777470+00:00","updated_at":"2026-05-18T00:02:03.777470+00:00"}