{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:EGY3I3QZCGPF7R4UGYAVF3CZYF","short_pith_number":"pith:EGY3I3QZ","schema_version":"1.0","canonical_sha256":"21b1b46e19119e5fc794360152ec59c1677b8bf4b77f538e4398dae23f1b6752","source":{"kind":"arxiv","id":"1705.07970","version":1},"attestation_state":"computed","paper":{"title":"Atomic-scale Structural and Chemical Characterization of Hexagonal Boron Nitride Layers Synthesized at the Wafer-Scale with Monolayer Thickness Control","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.app-ph","authors_text":"Chih-I Wu, Deep Jariwala, Harry A. Atwater, Michelle C. Sherrott, Nai-Chang Yeh, Victor W. Brar, Wei-Hsiang Lin, Wei-Shiuan Tseng","submitted_at":"2017-05-22T19:46:17Z","abstract_excerpt":"Hexagonal boron nitride (h-BN) is a promising two-dimensional insulator with a large band gap and low density of charged impurities that is isostructural and isoelectronic with graphene. Here we report the chemical and atomic-scale structure of CVD-grown wafer-scale (~25 cm2) h-BN sheets ranging in thickness from 1-20 monolayers. Atomic-scale images of h-BN on Au and graphene/Au substrates obtained by scanning tunneling microscopy (STM) reveal high h-BN crystalline quality in monolayer samples. Further characterization of 1-20 monolayer samples indicates uniform thickness for wafer-scale areas"},"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":"1705.07970","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-05-22T19:46:17Z","cross_cats_sorted":[],"title_canon_sha256":"7bdcef34554b8f98577b0b5fc728577c797de03e3da3397b9dae86059378a3a2","abstract_canon_sha256":"342a9d03db88570536c0cdd10c7a1a3851f9fe6ec85694cd98b225f64b645f3e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:44:04.014222Z","signature_b64":"iy4tnOf+cfcvE8N1QNGgAfOnfH/igj494rvEkND/uQKoRm0e8r722NpRa7CEfjjBE8+isq5YuYIBfoFaer19Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"21b1b46e19119e5fc794360152ec59c1677b8bf4b77f538e4398dae23f1b6752","last_reissued_at":"2026-05-18T00:44:04.013742Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:44:04.013742Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Atomic-scale Structural and Chemical Characterization of Hexagonal Boron Nitride Layers Synthesized at the Wafer-Scale with Monolayer Thickness Control","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.app-ph","authors_text":"Chih-I Wu, Deep Jariwala, Harry A. Atwater, Michelle C. Sherrott, Nai-Chang Yeh, Victor W. Brar, Wei-Hsiang Lin, Wei-Shiuan Tseng","submitted_at":"2017-05-22T19:46:17Z","abstract_excerpt":"Hexagonal boron nitride (h-BN) is a promising two-dimensional insulator with a large band gap and low density of charged impurities that is isostructural and isoelectronic with graphene. Here we report the chemical and atomic-scale structure of CVD-grown wafer-scale (~25 cm2) h-BN sheets ranging in thickness from 1-20 monolayers. Atomic-scale images of h-BN on Au and graphene/Au substrates obtained by scanning tunneling microscopy (STM) reveal high h-BN crystalline quality in monolayer samples. Further characterization of 1-20 monolayer samples indicates uniform thickness for wafer-scale areas"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.07970","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":"1705.07970","created_at":"2026-05-18T00:44:04.013803+00:00"},{"alias_kind":"arxiv_version","alias_value":"1705.07970v1","created_at":"2026-05-18T00:44:04.013803+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.07970","created_at":"2026-05-18T00:44:04.013803+00:00"},{"alias_kind":"pith_short_12","alias_value":"EGY3I3QZCGPF","created_at":"2026-05-18T12:31:12.930513+00:00"},{"alias_kind":"pith_short_16","alias_value":"EGY3I3QZCGPF7R4U","created_at":"2026-05-18T12:31:12.930513+00:00"},{"alias_kind":"pith_short_8","alias_value":"EGY3I3QZ","created_at":"2026-05-18T12:31:12.930513+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/EGY3I3QZCGPF7R4UGYAVF3CZYF","json":"https://pith.science/pith/EGY3I3QZCGPF7R4UGYAVF3CZYF.json","graph_json":"https://pith.science/api/pith-number/EGY3I3QZCGPF7R4UGYAVF3CZYF/graph.json","events_json":"https://pith.science/api/pith-number/EGY3I3QZCGPF7R4UGYAVF3CZYF/events.json","paper":"https://pith.science/paper/EGY3I3QZ"},"agent_actions":{"view_html":"https://pith.science/pith/EGY3I3QZCGPF7R4UGYAVF3CZYF","download_json":"https://pith.science/pith/EGY3I3QZCGPF7R4UGYAVF3CZYF.json","view_paper":"https://pith.science/paper/EGY3I3QZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1705.07970&json=true","fetch_graph":"https://pith.science/api/pith-number/EGY3I3QZCGPF7R4UGYAVF3CZYF/graph.json","fetch_events":"https://pith.science/api/pith-number/EGY3I3QZCGPF7R4UGYAVF3CZYF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/EGY3I3QZCGPF7R4UGYAVF3CZYF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/EGY3I3QZCGPF7R4UGYAVF3CZYF/action/storage_attestation","attest_author":"https://pith.science/pith/EGY3I3QZCGPF7R4UGYAVF3CZYF/action/author_attestation","sign_citation":"https://pith.science/pith/EGY3I3QZCGPF7R4UGYAVF3CZYF/action/citation_signature","submit_replication":"https://pith.science/pith/EGY3I3QZCGPF7R4UGYAVF3CZYF/action/replication_record"}},"created_at":"2026-05-18T00:44:04.013803+00:00","updated_at":"2026-05-18T00:44:04.013803+00:00"}