{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:CWHAXV5N4MPQNUL27DTIV6IKJC","short_pith_number":"pith:CWHAXV5N","schema_version":"1.0","canonical_sha256":"158e0bd7ade31f06d17af8e68af90a489eb7b81a05abe206363512072dbf5dc1","source":{"kind":"arxiv","id":"1608.08653","version":1},"attestation_state":"computed","paper":{"title":"Design and Demonstration of Ultra Wide Bandgap AlGaN Tunnel Junctions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Andrew A. Allerman, Andrew M. Armstrong, Fatih Akyol, Michael W. Moseley, Siddharth Rajan, Sriram Krishnamoorthy, Yuewei Zhang","submitted_at":"2016-08-30T20:37:59Z","abstract_excerpt":"Ultra violet light emitting diodes (UV LEDs) face critical limitations in both the injection efficiency and light extraction efficiency due to the resistive and absorbing p-type contact layers. In this work, we investigate the design and application of polarization engineered tunnel junctions for ultra-wide bandgap AlGaN (Al mole fraction higher than 50%) materials towards highly efficient UV LEDs. We demonstrate that polarization-induced 3D charge is beneficial in reducing tunneling barriers especially for high composition AlGaN tunnel junctions. The design of graded tunnel junction structure"},"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":"1608.08653","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-08-30T20:37:59Z","cross_cats_sorted":[],"title_canon_sha256":"e0f0f0664281e1d4ba03964c1b478a9bd3027ac01fb8ebd919435cc62806acce","abstract_canon_sha256":"9178cf6163fb9108818ca617d44f890edb53f15332053778a024c7f4f199ed76"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:02:36.920443Z","signature_b64":"rm2lkU1+URmdGuksR5y+0R2t48y+tBXabgX7lBaVdQ6DR0HEWDrtixhFJPI7vSu6QfF1/36r6tX3CQeDcbhtAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"158e0bd7ade31f06d17af8e68af90a489eb7b81a05abe206363512072dbf5dc1","last_reissued_at":"2026-05-18T01:02:36.919750Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:02:36.919750Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Design and Demonstration of Ultra Wide Bandgap AlGaN Tunnel Junctions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Andrew A. Allerman, Andrew M. Armstrong, Fatih Akyol, Michael W. Moseley, Siddharth Rajan, Sriram Krishnamoorthy, Yuewei Zhang","submitted_at":"2016-08-30T20:37:59Z","abstract_excerpt":"Ultra violet light emitting diodes (UV LEDs) face critical limitations in both the injection efficiency and light extraction efficiency due to the resistive and absorbing p-type contact layers. In this work, we investigate the design and application of polarization engineered tunnel junctions for ultra-wide bandgap AlGaN (Al mole fraction higher than 50%) materials towards highly efficient UV LEDs. We demonstrate that polarization-induced 3D charge is beneficial in reducing tunneling barriers especially for high composition AlGaN tunnel junctions. The design of graded tunnel junction structure"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.08653","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":"1608.08653","created_at":"2026-05-18T01:02:36.919867+00:00"},{"alias_kind":"arxiv_version","alias_value":"1608.08653v1","created_at":"2026-05-18T01:02:36.919867+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.08653","created_at":"2026-05-18T01:02:36.919867+00:00"},{"alias_kind":"pith_short_12","alias_value":"CWHAXV5N4MPQ","created_at":"2026-05-18T12:30:09.641336+00:00"},{"alias_kind":"pith_short_16","alias_value":"CWHAXV5N4MPQNUL2","created_at":"2026-05-18T12:30:09.641336+00:00"},{"alias_kind":"pith_short_8","alias_value":"CWHAXV5N","created_at":"2026-05-18T12:30:09.641336+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/CWHAXV5N4MPQNUL27DTIV6IKJC","json":"https://pith.science/pith/CWHAXV5N4MPQNUL27DTIV6IKJC.json","graph_json":"https://pith.science/api/pith-number/CWHAXV5N4MPQNUL27DTIV6IKJC/graph.json","events_json":"https://pith.science/api/pith-number/CWHAXV5N4MPQNUL27DTIV6IKJC/events.json","paper":"https://pith.science/paper/CWHAXV5N"},"agent_actions":{"view_html":"https://pith.science/pith/CWHAXV5N4MPQNUL27DTIV6IKJC","download_json":"https://pith.science/pith/CWHAXV5N4MPQNUL27DTIV6IKJC.json","view_paper":"https://pith.science/paper/CWHAXV5N","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1608.08653&json=true","fetch_graph":"https://pith.science/api/pith-number/CWHAXV5N4MPQNUL27DTIV6IKJC/graph.json","fetch_events":"https://pith.science/api/pith-number/CWHAXV5N4MPQNUL27DTIV6IKJC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CWHAXV5N4MPQNUL27DTIV6IKJC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CWHAXV5N4MPQNUL27DTIV6IKJC/action/storage_attestation","attest_author":"https://pith.science/pith/CWHAXV5N4MPQNUL27DTIV6IKJC/action/author_attestation","sign_citation":"https://pith.science/pith/CWHAXV5N4MPQNUL27DTIV6IKJC/action/citation_signature","submit_replication":"https://pith.science/pith/CWHAXV5N4MPQNUL27DTIV6IKJC/action/replication_record"}},"created_at":"2026-05-18T01:02:36.919867+00:00","updated_at":"2026-05-18T01:02:36.919867+00:00"}