{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:KTJDOQZVDROW5FHOPSQVYPBPWC","short_pith_number":"pith:KTJDOQZV","schema_version":"1.0","canonical_sha256":"54d23743351c5d6e94ee7ca15c3c2fb087ae31e7847b94775d613fceecbc561a","source":{"kind":"arxiv","id":"2305.11815","version":1},"attestation_state":"computed","paper":{"title":"Bypassing the single junction limit with advanced photovoltaic architectures","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"physics.app-ph","authors_text":"Christoph J. Brabec, Dan Bornstein, Dirk Guldi, Karen Forberich, Larry L\\\"uer, Marius Peters, Vincent M. Le Corre","submitted_at":"2023-05-19T16:49:45Z","abstract_excerpt":"In single-junction photovoltaic (PV) devices, the maximum achievable power conversion efficiency (PCE) is mainly limited by thermalization and transmission losses, because polychromatic solar irradiation cannot be matched to a single bandgap. Several concepts are being investigated to reduce these losses, such as the classical vertical multijunction cells, 'lateral' tandem cells, and multi-exciton generation in the form of photon up- and down-conversion. While in theory, efficiencies exceeding 90% are possible (Landsberg or thermodynamic limit), there are severe practical limitations in terms "},"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":"2305.11815","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2023-05-19T16:49:45Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"49b229d5ea7313b86f42b7e32700c8337d18013e5f06ef7cffa78b1fd8ca8bff","abstract_canon_sha256":"33fde52406ec63083dc205f76d613e701e16dbb5fc7732397ec95c5977d904bd"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:11:51.577449Z","signature_b64":"gAWzR1YzjYbWsFBazGrgiNJlbyZgwAs/KyfFHfpvc2JV78Nd1bEvC6hdAWgtTKUouY3RchUNyzSlHi7uhihJDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"54d23743351c5d6e94ee7ca15c3c2fb087ae31e7847b94775d613fceecbc561a","last_reissued_at":"2026-07-05T06:11:51.576933Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:11:51.576933Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Bypassing the single junction limit with advanced photovoltaic architectures","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"physics.app-ph","authors_text":"Christoph J. Brabec, Dan Bornstein, Dirk Guldi, Karen Forberich, Larry L\\\"uer, Marius Peters, Vincent M. Le Corre","submitted_at":"2023-05-19T16:49:45Z","abstract_excerpt":"In single-junction photovoltaic (PV) devices, the maximum achievable power conversion efficiency (PCE) is mainly limited by thermalization and transmission losses, because polychromatic solar irradiation cannot be matched to a single bandgap. Several concepts are being investigated to reduce these losses, such as the classical vertical multijunction cells, 'lateral' tandem cells, and multi-exciton generation in the form of photon up- and down-conversion. While in theory, efficiencies exceeding 90% are possible (Landsberg or thermodynamic limit), there are severe practical limitations in terms "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.11815","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2305.11815/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2305.11815","created_at":"2026-07-05T06:11:51.576993+00:00"},{"alias_kind":"arxiv_version","alias_value":"2305.11815v1","created_at":"2026-07-05T06:11:51.576993+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2305.11815","created_at":"2026-07-05T06:11:51.576993+00:00"},{"alias_kind":"pith_short_12","alias_value":"KTJDOQZVDROW","created_at":"2026-07-05T06:11:51.576993+00:00"},{"alias_kind":"pith_short_16","alias_value":"KTJDOQZVDROW5FHO","created_at":"2026-07-05T06:11:51.576993+00:00"},{"alias_kind":"pith_short_8","alias_value":"KTJDOQZV","created_at":"2026-07-05T06:11:51.576993+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/KTJDOQZVDROW5FHOPSQVYPBPWC","json":"https://pith.science/pith/KTJDOQZVDROW5FHOPSQVYPBPWC.json","graph_json":"https://pith.science/api/pith-number/KTJDOQZVDROW5FHOPSQVYPBPWC/graph.json","events_json":"https://pith.science/api/pith-number/KTJDOQZVDROW5FHOPSQVYPBPWC/events.json","paper":"https://pith.science/paper/KTJDOQZV"},"agent_actions":{"view_html":"https://pith.science/pith/KTJDOQZVDROW5FHOPSQVYPBPWC","download_json":"https://pith.science/pith/KTJDOQZVDROW5FHOPSQVYPBPWC.json","view_paper":"https://pith.science/paper/KTJDOQZV","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2305.11815&json=true","fetch_graph":"https://pith.science/api/pith-number/KTJDOQZVDROW5FHOPSQVYPBPWC/graph.json","fetch_events":"https://pith.science/api/pith-number/KTJDOQZVDROW5FHOPSQVYPBPWC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KTJDOQZVDROW5FHOPSQVYPBPWC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KTJDOQZVDROW5FHOPSQVYPBPWC/action/storage_attestation","attest_author":"https://pith.science/pith/KTJDOQZVDROW5FHOPSQVYPBPWC/action/author_attestation","sign_citation":"https://pith.science/pith/KTJDOQZVDROW5FHOPSQVYPBPWC/action/citation_signature","submit_replication":"https://pith.science/pith/KTJDOQZVDROW5FHOPSQVYPBPWC/action/replication_record"}},"created_at":"2026-07-05T06:11:51.576993+00:00","updated_at":"2026-07-05T06:11:51.576993+00:00"}