{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:WLAKWXUZ475JMQFBYDSZXZANJZ","short_pith_number":"pith:WLAKWXUZ","canonical_record":{"source":{"id":"1906.07351","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2019-06-18T02:45:28Z","cross_cats_sorted":[],"title_canon_sha256":"9c7a4ab708f3540424a31b83db5648caa56d663455d440143521e6d54432baaa","abstract_canon_sha256":"6867a5597b733d2507f090178d77e00885b457530dcdce994c6675fce5ed3a1f"},"schema_version":"1.0"},"canonical_sha256":"b2c0ab5e99e7fa9640a1c0e59be40d4e5763014729efc82f5fe068bbff73825d","source":{"kind":"arxiv","id":"1906.07351","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.07351","created_at":"2026-05-17T23:39:43Z"},{"alias_kind":"arxiv_version","alias_value":"1906.07351v1","created_at":"2026-05-17T23:39:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.07351","created_at":"2026-05-17T23:39:43Z"},{"alias_kind":"pith_short_12","alias_value":"WLAKWXUZ475J","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"WLAKWXUZ475JMQFB","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"WLAKWXUZ","created_at":"2026-05-18T12:33:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:WLAKWXUZ475JMQFBYDSZXZANJZ","target":"record","payload":{"canonical_record":{"source":{"id":"1906.07351","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2019-06-18T02:45:28Z","cross_cats_sorted":[],"title_canon_sha256":"9c7a4ab708f3540424a31b83db5648caa56d663455d440143521e6d54432baaa","abstract_canon_sha256":"6867a5597b733d2507f090178d77e00885b457530dcdce994c6675fce5ed3a1f"},"schema_version":"1.0"},"canonical_sha256":"b2c0ab5e99e7fa9640a1c0e59be40d4e5763014729efc82f5fe068bbff73825d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:39:43.054620Z","signature_b64":"eVXyNSjYuCL4Cwg0MW8CEHZkroYX1ml5YEAyY5IxzYvPS+U1OEGe9Yhmjgjm9BVvACQPWq/njyKbBebZpSyoCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b2c0ab5e99e7fa9640a1c0e59be40d4e5763014729efc82f5fe068bbff73825d","last_reissued_at":"2026-05-17T23:39:43.054035Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:39:43.054035Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1906.07351","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:39:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HPs7lROr+DFwrZkzy1o6gUm6soBGKdCNZx3jpcBbhzTAAIPOvMYZ/3tntItCRp/OH+3bM6VLDvr0L/4rOG2MAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T19:18:09.421468Z"},"content_sha256":"253dea8be66b4066871629343cd585968e4120e5274fce673dad4907a8f2dd3d","schema_version":"1.0","event_id":"sha256:253dea8be66b4066871629343cd585968e4120e5274fce673dad4907a8f2dd3d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:WLAKWXUZ475JMQFBYDSZXZANJZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Demonstration of Si based InAs/GaSb type-II superlattice p-i-n photodetector","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.app-ph","authors_text":"Baile Chen, Claudia Gonz\\'alez Burguete, Daqian Guo, Huiyun Liu, Jiang Wu, Jian Huang, Zhuo Deng, Zongheng Xie","submitted_at":"2019-06-18T02:45:28Z","abstract_excerpt":"In this paper, mid-wave infrared photodetection based on an InAs/GaSb type-II superlattice p-i-n photodetector grown directly on Si substrate is demonstrated and characterized. Excitation power dependence on integrated intensity from the photoluminescence measurements reveals a power coefficient of P~I0.74, indicating that defects related process is playing an important role in the predominant recombination channel for photogenerated carriers. At 70 K, the device exhibits a dark current density of 2.3 A/cm2 under -0.1 V bias. Arrhenius analysis of dark current shows activation energies much le"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.07351","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:39:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L3FQR6p5gQITkUK8GFeCktNvnsCxwKnmB9LYdgGHIUhdMFeALoI7eMJ+xvRdNo5FN4yAwtvxDusx2bd+udc3AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T19:18:09.422177Z"},"content_sha256":"7f25e688fd7f6c364271fabbb35089c269232a6e8271a5f4cd9d30135e16f797","schema_version":"1.0","event_id":"sha256:7f25e688fd7f6c364271fabbb35089c269232a6e8271a5f4cd9d30135e16f797"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WLAKWXUZ475JMQFBYDSZXZANJZ/bundle.json","state_url":"https://pith.science/pith/WLAKWXUZ475JMQFBYDSZXZANJZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WLAKWXUZ475JMQFBYDSZXZANJZ/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-25T19:18:09Z","links":{"resolver":"https://pith.science/pith/WLAKWXUZ475JMQFBYDSZXZANJZ","bundle":"https://pith.science/pith/WLAKWXUZ475JMQFBYDSZXZANJZ/bundle.json","state":"https://pith.science/pith/WLAKWXUZ475JMQFBYDSZXZANJZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WLAKWXUZ475JMQFBYDSZXZANJZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:WLAKWXUZ475JMQFBYDSZXZANJZ","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"6867a5597b733d2507f090178d77e00885b457530dcdce994c6675fce5ed3a1f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2019-06-18T02:45:28Z","title_canon_sha256":"9c7a4ab708f3540424a31b83db5648caa56d663455d440143521e6d54432baaa"},"schema_version":"1.0","source":{"id":"1906.07351","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.07351","created_at":"2026-05-17T23:39:43Z"},{"alias_kind":"arxiv_version","alias_value":"1906.07351v1","created_at":"2026-05-17T23:39:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.07351","created_at":"2026-05-17T23:39:43Z"},{"alias_kind":"pith_short_12","alias_value":"WLAKWXUZ475J","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"WLAKWXUZ475JMQFB","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"WLAKWXUZ","created_at":"2026-05-18T12:33:30Z"}],"graph_snapshots":[{"event_id":"sha256:7f25e688fd7f6c364271fabbb35089c269232a6e8271a5f4cd9d30135e16f797","target":"graph","created_at":"2026-05-17T23:39:43Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"In this paper, mid-wave infrared photodetection based on an InAs/GaSb type-II superlattice p-i-n photodetector grown directly on Si substrate is demonstrated and characterized. Excitation power dependence on integrated intensity from the photoluminescence measurements reveals a power coefficient of P~I0.74, indicating that defects related process is playing an important role in the predominant recombination channel for photogenerated carriers. At 70 K, the device exhibits a dark current density of 2.3 A/cm2 under -0.1 V bias. Arrhenius analysis of dark current shows activation energies much le","authors_text":"Baile Chen, Claudia Gonz\\'alez Burguete, Daqian Guo, Huiyun Liu, Jiang Wu, Jian Huang, Zhuo Deng, Zongheng Xie","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2019-06-18T02:45:28Z","title":"Demonstration of Si based InAs/GaSb type-II superlattice p-i-n photodetector"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.07351","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:253dea8be66b4066871629343cd585968e4120e5274fce673dad4907a8f2dd3d","target":"record","created_at":"2026-05-17T23:39:43Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"6867a5597b733d2507f090178d77e00885b457530dcdce994c6675fce5ed3a1f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2019-06-18T02:45:28Z","title_canon_sha256":"9c7a4ab708f3540424a31b83db5648caa56d663455d440143521e6d54432baaa"},"schema_version":"1.0","source":{"id":"1906.07351","kind":"arxiv","version":1}},"canonical_sha256":"b2c0ab5e99e7fa9640a1c0e59be40d4e5763014729efc82f5fe068bbff73825d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b2c0ab5e99e7fa9640a1c0e59be40d4e5763014729efc82f5fe068bbff73825d","first_computed_at":"2026-05-17T23:39:43.054035Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:39:43.054035Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eVXyNSjYuCL4Cwg0MW8CEHZkroYX1ml5YEAyY5IxzYvPS+U1OEGe9Yhmjgjm9BVvACQPWq/njyKbBebZpSyoCQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:39:43.054620Z","signed_message":"canonical_sha256_bytes"},"source_id":"1906.07351","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:253dea8be66b4066871629343cd585968e4120e5274fce673dad4907a8f2dd3d","sha256:7f25e688fd7f6c364271fabbb35089c269232a6e8271a5f4cd9d30135e16f797"],"state_sha256":"78f8bd727adf64be8a7a31f248c4bd2a70c9d8baabe81f6fd943982cb7421827"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xykNwJmTf/hmWvf1Sz8zIjQntNuN9rRTJF2eJjaUmHbUXth4ihYxeqvBmnwcS5fINZZ/QKn9cCsp7rd18UqYCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T19:18:09.424935Z","bundle_sha256":"14597bd544511aef12924df0589c6f5324e8da9af008ece0c8d80e2422fb5479"}}