{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:GY2YASEG7XPIJBBSP5A7WDBESG","short_pith_number":"pith:GY2YASEG","schema_version":"1.0","canonical_sha256":"3635804886fdde8484327f41fb0c24918ae9a12662018e4b3bff05b0c393724c","source":{"kind":"arxiv","id":"1208.0885","version":1},"attestation_state":"computed","paper":{"title":"Nitrogen-Functionalized Graphene Nanoflakes (GNFs:N): Tunable Photoluminescence and Electronic Structures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. Ganguly, A. Kumar, B. Y. Wang, C. H. Chuang, C. W. Chen, C. W. Pao, H.-J. Lin, H. M. Tsai, H. Yamane, J. W. Chiou, K.-H. Chen, L.-C. Chen, L. Liu, M.-H. Tsai, N. Kosugi, P. Papakonstantinou, S. C. Chen, Sekhar C. Ray, S. I. Peng, T. K. Sham, T. Regier, W. F. Pong, Y. C. Shao, Y. C. Yeh, Y. F. Wang","submitted_at":"2012-08-04T04:39:33Z","abstract_excerpt":"This study investigates the strong photoluminescence (PL) and X-ray excited optical luminescence observed in nitrogen-functionalized 2D graphene nanoflakes (GNFs:N), which arise from the significantly enhanced density of states in the region of {\\pi} states and the gap between {\\pi} and {\\pi}* states. The increase in the number of the sp2 clusters in the form of pyridine-like N-C, graphite-N-like, and the C=O bonding and the resonant energy transfer from the N and O atoms to the sp2 clusters were found to be responsible for the blue shift and the enhancement of the main PL emission feature. Th"},"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":"1208.0885","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-08-04T04:39:33Z","cross_cats_sorted":[],"title_canon_sha256":"add02097b7feb165c1359d17e03d641ffeaf40b9f807092eb5398b43f081270b","abstract_canon_sha256":"047ba45da16e3544e417653a521f8de2447ee474f1fa5c6042c1cfa309aa7727"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:49:21.234260Z","signature_b64":"nOIQSkPsKp3DHJcSWLVp5+gwv4UWqHHZZfEPFf/dwC2FEtThu6g2i5UihvauWqMChUXfE2EVPV6eFdLAYEQXCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3635804886fdde8484327f41fb0c24918ae9a12662018e4b3bff05b0c393724c","last_reissued_at":"2026-05-18T03:49:21.233590Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:49:21.233590Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Nitrogen-Functionalized Graphene Nanoflakes (GNFs:N): Tunable Photoluminescence and Electronic Structures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. Ganguly, A. Kumar, B. Y. Wang, C. H. Chuang, C. W. Chen, C. W. Pao, H.-J. Lin, H. M. Tsai, H. Yamane, J. W. Chiou, K.-H. Chen, L.-C. Chen, L. Liu, M.-H. Tsai, N. Kosugi, P. Papakonstantinou, S. C. Chen, Sekhar C. Ray, S. I. Peng, T. K. Sham, T. Regier, W. F. Pong, Y. C. Shao, Y. C. Yeh, Y. F. Wang","submitted_at":"2012-08-04T04:39:33Z","abstract_excerpt":"This study investigates the strong photoluminescence (PL) and X-ray excited optical luminescence observed in nitrogen-functionalized 2D graphene nanoflakes (GNFs:N), which arise from the significantly enhanced density of states in the region of {\\pi} states and the gap between {\\pi} and {\\pi}* states. The increase in the number of the sp2 clusters in the form of pyridine-like N-C, graphite-N-like, and the C=O bonding and the resonant energy transfer from the N and O atoms to the sp2 clusters were found to be responsible for the blue shift and the enhancement of the main PL emission feature. Th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.0885","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":"1208.0885","created_at":"2026-05-18T03:49:21.233711+00:00"},{"alias_kind":"arxiv_version","alias_value":"1208.0885v1","created_at":"2026-05-18T03:49:21.233711+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.0885","created_at":"2026-05-18T03:49:21.233711+00:00"},{"alias_kind":"pith_short_12","alias_value":"GY2YASEG7XPI","created_at":"2026-05-18T12:27:06.952714+00:00"},{"alias_kind":"pith_short_16","alias_value":"GY2YASEG7XPIJBBS","created_at":"2026-05-18T12:27:06.952714+00:00"},{"alias_kind":"pith_short_8","alias_value":"GY2YASEG","created_at":"2026-05-18T12:27:06.952714+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/GY2YASEG7XPIJBBSP5A7WDBESG","json":"https://pith.science/pith/GY2YASEG7XPIJBBSP5A7WDBESG.json","graph_json":"https://pith.science/api/pith-number/GY2YASEG7XPIJBBSP5A7WDBESG/graph.json","events_json":"https://pith.science/api/pith-number/GY2YASEG7XPIJBBSP5A7WDBESG/events.json","paper":"https://pith.science/paper/GY2YASEG"},"agent_actions":{"view_html":"https://pith.science/pith/GY2YASEG7XPIJBBSP5A7WDBESG","download_json":"https://pith.science/pith/GY2YASEG7XPIJBBSP5A7WDBESG.json","view_paper":"https://pith.science/paper/GY2YASEG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1208.0885&json=true","fetch_graph":"https://pith.science/api/pith-number/GY2YASEG7XPIJBBSP5A7WDBESG/graph.json","fetch_events":"https://pith.science/api/pith-number/GY2YASEG7XPIJBBSP5A7WDBESG/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GY2YASEG7XPIJBBSP5A7WDBESG/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GY2YASEG7XPIJBBSP5A7WDBESG/action/storage_attestation","attest_author":"https://pith.science/pith/GY2YASEG7XPIJBBSP5A7WDBESG/action/author_attestation","sign_citation":"https://pith.science/pith/GY2YASEG7XPIJBBSP5A7WDBESG/action/citation_signature","submit_replication":"https://pith.science/pith/GY2YASEG7XPIJBBSP5A7WDBESG/action/replication_record"}},"created_at":"2026-05-18T03:49:21.233711+00:00","updated_at":"2026-05-18T03:49:21.233711+00:00"}