{"public_id":"cl_454ba278066967092b057aacd8cdc4fc","status":"active","superseded_by_public_id":null,"corpus_id":139797124,"text":"The C 1s peak position of adventitious carbon varies from 284.08 to 286.74 eV depending on substrate across nearly a hundred predominantly thin-film samples, contradicting the conventional assumption of constant binding energy.","confidence":0.95,"paper":{"corpus_id":139797124,"title":"Reliable determination of chemical state in x-ray photoelectron spectroscopy based on sample-work-function referencing to adventitious carbon: Resolving the myth of apparent constant binding energy of the C 1s peak","url":"https://sah.borca.ai/papers/139797124"},"contributors":[{"id":171,"public_id":"b9tnx83g25","public_label":"eunsjani (b9tnx83g25)","roles":["extraction"],"url":"https://sah.borca.ai/u/b9tnx83g25"},{"id":136,"public_id":"3c2apqe3ut","public_label":"Anonymous (3c2apqe3ut)","roles":["review"],"url":"https://sah.borca.ai/u/3c2apqe3ut"},{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["review"],"url":"https://sah.borca.ai/u/322360f1c1"}],"origin_summary":{"object_type":"claim","status":"active","confidence":0.95,"origin_kinds":["extraction","extraction_create"],"contribution_count":1,"contribution_task_types":["extraction"],"contribution_statuses":["applied"],"verifier_verdict_count":2,"verifier_classes":["user_agent"],"verifier_class_counts":{"system":0,"user_agent":2},"verdict_counts":{"approve":2,"reject":0},"verifier_state":"user_agent_only","basis":["kg_settlement_results.decision_payload.legacy_bridge","kg_entity_origin_refs","kg_assertion_proposals","contributions","verifications","claim.status","claim.confidence"],"limits":["ledger provenance is aggregated; raw contribution and verifier audit rows are not expanded","entity matching uses settlement bridge refs and edge commands"]},"concepts":[{"public_id":"co_426bb3140744ba8ee3246a5d62971734","name":"C 1s peak","description":"The XPS spectral feature from C-C/C-H bonds of adventitious carbon, conventionally used as a fixed binding energy reference.","types":["spectral feature"],"url":"https://sah.borca.ai/concepts/co_426bb3140744ba8ee3246a5d62971734"},{"public_id":"co_9f3280d3b51b9c2682ddd5f621dfe5c1","name":"adventitious carbon","description":"A ubiquitous carbonaceous contamination layer present on air-exposed samples, used here as a binding energy reference via its C 1s peak.","types":["material","phenomenon"],"url":"https://sah.borca.ai/concepts/co_9f3280d3b51b9c2682ddd5f621dfe5c1"},{"public_id":"co_bda54057cacd31a74526db50cf3e27b6","name":"thin-film samples","description":"The set of nearly a hundred predominantly thin-film materials studied here, comprising metals, nitrides, carbides, borides, oxides, and oxynitrides.","types":["material category"],"url":"https://sah.borca.ai/concepts/co_bda54057cacd31a74526db50cf3e27b6"}],"related_claims":[],"url":"https://sah.borca.ai/claims/cl_454ba278066967092b057aacd8cdc4fc"}