{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:CZ72FCAU4U2EQPMUJJXGMWSTJB","short_pith_number":"pith:CZ72FCAU","schema_version":"1.0","canonical_sha256":"167fa28814e534483d944a6e665a534877f43dbd837e668b710ab13dca3f6c60","source":{"kind":"arxiv","id":"1502.03773","version":1},"attestation_state":"computed","paper":{"title":"Optical control of internal electric fields in band-gap graded InGaN nanowires","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"A.T.M. Golam Sarwar, A.W. Holleitner, D. W. McComb, F. Yang, N. Erhard, R. C. Myers","submitted_at":"2015-02-12T19:04:24Z","abstract_excerpt":"InGaN nanowires are suitable building blocks for many future optoelectronic devices. We show that a linear grading of the indium content along the nanowire axis from GaN to InN introduces an internal electric field evoking a photocurrent. Consistent with quantitative band structure simulations we observe a sign change in the measured photocurrent as a function of photon flux. This negative differential photocurrent opens the path to a new type of nanowire-based photodetector. We demonstrate that the photocurrent response of the nanowires is as fast as 1.5 ps."},"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":"1502.03773","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-02-12T19:04:24Z","cross_cats_sorted":[],"title_canon_sha256":"d263db75dc76b9465a6a32253108df84247494373e27999c0ff1fe82915565a7","abstract_canon_sha256":"d06f1dc24061f479f52890339ce54df8fc663badda92a755573df2241e196823"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:03.546082Z","signature_b64":"7VpkSa9Mqgm9vbtNwc9agtSHSedv8y+e7aTEOTPWfYHcqRlURkQmkBLc3Re6LyOTMT9mJ4v4Lny/Mq6W35eCCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"167fa28814e534483d944a6e665a534877f43dbd837e668b710ab13dca3f6c60","last_reissued_at":"2026-05-18T01:41:03.545474Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:03.545474Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Optical control of internal electric fields in band-gap graded InGaN nanowires","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"A.T.M. Golam Sarwar, A.W. Holleitner, D. W. McComb, F. Yang, N. Erhard, R. C. Myers","submitted_at":"2015-02-12T19:04:24Z","abstract_excerpt":"InGaN nanowires are suitable building blocks for many future optoelectronic devices. We show that a linear grading of the indium content along the nanowire axis from GaN to InN introduces an internal electric field evoking a photocurrent. Consistent with quantitative band structure simulations we observe a sign change in the measured photocurrent as a function of photon flux. This negative differential photocurrent opens the path to a new type of nanowire-based photodetector. We demonstrate that the photocurrent response of the nanowires is as fast as 1.5 ps."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.03773","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":"1502.03773","created_at":"2026-05-18T01:41:03.545565+00:00"},{"alias_kind":"arxiv_version","alias_value":"1502.03773v1","created_at":"2026-05-18T01:41:03.545565+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.03773","created_at":"2026-05-18T01:41:03.545565+00:00"},{"alias_kind":"pith_short_12","alias_value":"CZ72FCAU4U2E","created_at":"2026-05-18T12:29:17.054201+00:00"},{"alias_kind":"pith_short_16","alias_value":"CZ72FCAU4U2EQPMU","created_at":"2026-05-18T12:29:17.054201+00:00"},{"alias_kind":"pith_short_8","alias_value":"CZ72FCAU","created_at":"2026-05-18T12:29:17.054201+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/CZ72FCAU4U2EQPMUJJXGMWSTJB","json":"https://pith.science/pith/CZ72FCAU4U2EQPMUJJXGMWSTJB.json","graph_json":"https://pith.science/api/pith-number/CZ72FCAU4U2EQPMUJJXGMWSTJB/graph.json","events_json":"https://pith.science/api/pith-number/CZ72FCAU4U2EQPMUJJXGMWSTJB/events.json","paper":"https://pith.science/paper/CZ72FCAU"},"agent_actions":{"view_html":"https://pith.science/pith/CZ72FCAU4U2EQPMUJJXGMWSTJB","download_json":"https://pith.science/pith/CZ72FCAU4U2EQPMUJJXGMWSTJB.json","view_paper":"https://pith.science/paper/CZ72FCAU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1502.03773&json=true","fetch_graph":"https://pith.science/api/pith-number/CZ72FCAU4U2EQPMUJJXGMWSTJB/graph.json","fetch_events":"https://pith.science/api/pith-number/CZ72FCAU4U2EQPMUJJXGMWSTJB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CZ72FCAU4U2EQPMUJJXGMWSTJB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CZ72FCAU4U2EQPMUJJXGMWSTJB/action/storage_attestation","attest_author":"https://pith.science/pith/CZ72FCAU4U2EQPMUJJXGMWSTJB/action/author_attestation","sign_citation":"https://pith.science/pith/CZ72FCAU4U2EQPMUJJXGMWSTJB/action/citation_signature","submit_replication":"https://pith.science/pith/CZ72FCAU4U2EQPMUJJXGMWSTJB/action/replication_record"}},"created_at":"2026-05-18T01:41:03.545565+00:00","updated_at":"2026-05-18T01:41:03.545565+00:00"}