{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:UCJNI53QHU2XT4AH4K2RWJUVJB","short_pith_number":"pith:UCJNI53Q","schema_version":"1.0","canonical_sha256":"a092d477703d3579f007e2b51b26954862a5c7edf30dcc5d624f4f240fc7be85","source":{"kind":"arxiv","id":"1509.07224","version":1},"attestation_state":"computed","paper":{"title":"Triplet-Polaron Interaction Induced Upconversion from Triplet to Singlet: a New Way to Obtain Highly Efficient OLEDs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.chem-ph","authors_text":"Ablikim Obolda, Chuanyou He, Feng Li, Hongwei Ma, Jiajun Ren, Qiming Peng, Tian Zhang, Zhigang Shuai","submitted_at":"2015-09-24T03:28:56Z","abstract_excerpt":"The triplet harvesting is a main challenge in organic light-emitting devices (OLEDs), due to the radiative decay of triplet is spin-forbidden. Here, we designed and synthesized two D-A type molecules, TPA-TAZ and TCP. The OLEDs based on them exhibit deep-blue emission and the singlet formation ratios are higher than the simple spin-statistics of 25 %. Specially, a TPA-TAZ-based OLED achieves a maximum EQE of 6.8 %, which is the largest value of the undoped OLEDs with CIE(y)< 0.06 (the EBU blue standard) up to date. Comprehensive experiments eliminate the triplet-harvesting processes of thermal"},"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":"1509.07224","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2015-09-24T03:28:56Z","cross_cats_sorted":[],"title_canon_sha256":"6dda1423778365cb056369de61ef3947bbfa62eab73593a443d638af7c957af6","abstract_canon_sha256":"e9f514213a430108df2a7d9c6523d115ff1d83f89e46c6d235129391f05d3605"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:32:09.522325Z","signature_b64":"yy+sq9gYoswU44U8MeDzPwccsRPBKkXP/UtrgzYaqM2DAVbNbhbkcc9UdGCqkBxM4KVMBXkTpifhftlqyN9cDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a092d477703d3579f007e2b51b26954862a5c7edf30dcc5d624f4f240fc7be85","last_reissued_at":"2026-05-18T01:32:09.521807Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:32:09.521807Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Triplet-Polaron Interaction Induced Upconversion from Triplet to Singlet: a New Way to Obtain Highly Efficient OLEDs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.chem-ph","authors_text":"Ablikim Obolda, Chuanyou He, Feng Li, Hongwei Ma, Jiajun Ren, Qiming Peng, Tian Zhang, Zhigang Shuai","submitted_at":"2015-09-24T03:28:56Z","abstract_excerpt":"The triplet harvesting is a main challenge in organic light-emitting devices (OLEDs), due to the radiative decay of triplet is spin-forbidden. Here, we designed and synthesized two D-A type molecules, TPA-TAZ and TCP. The OLEDs based on them exhibit deep-blue emission and the singlet formation ratios are higher than the simple spin-statistics of 25 %. Specially, a TPA-TAZ-based OLED achieves a maximum EQE of 6.8 %, which is the largest value of the undoped OLEDs with CIE(y)< 0.06 (the EBU blue standard) up to date. Comprehensive experiments eliminate the triplet-harvesting processes of thermal"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.07224","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":"1509.07224","created_at":"2026-05-18T01:32:09.521887+00:00"},{"alias_kind":"arxiv_version","alias_value":"1509.07224v1","created_at":"2026-05-18T01:32:09.521887+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.07224","created_at":"2026-05-18T01:32:09.521887+00:00"},{"alias_kind":"pith_short_12","alias_value":"UCJNI53QHU2X","created_at":"2026-05-18T12:29:44.643036+00:00"},{"alias_kind":"pith_short_16","alias_value":"UCJNI53QHU2XT4AH","created_at":"2026-05-18T12:29:44.643036+00:00"},{"alias_kind":"pith_short_8","alias_value":"UCJNI53Q","created_at":"2026-05-18T12:29:44.643036+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/UCJNI53QHU2XT4AH4K2RWJUVJB","json":"https://pith.science/pith/UCJNI53QHU2XT4AH4K2RWJUVJB.json","graph_json":"https://pith.science/api/pith-number/UCJNI53QHU2XT4AH4K2RWJUVJB/graph.json","events_json":"https://pith.science/api/pith-number/UCJNI53QHU2XT4AH4K2RWJUVJB/events.json","paper":"https://pith.science/paper/UCJNI53Q"},"agent_actions":{"view_html":"https://pith.science/pith/UCJNI53QHU2XT4AH4K2RWJUVJB","download_json":"https://pith.science/pith/UCJNI53QHU2XT4AH4K2RWJUVJB.json","view_paper":"https://pith.science/paper/UCJNI53Q","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1509.07224&json=true","fetch_graph":"https://pith.science/api/pith-number/UCJNI53QHU2XT4AH4K2RWJUVJB/graph.json","fetch_events":"https://pith.science/api/pith-number/UCJNI53QHU2XT4AH4K2RWJUVJB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/UCJNI53QHU2XT4AH4K2RWJUVJB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/UCJNI53QHU2XT4AH4K2RWJUVJB/action/storage_attestation","attest_author":"https://pith.science/pith/UCJNI53QHU2XT4AH4K2RWJUVJB/action/author_attestation","sign_citation":"https://pith.science/pith/UCJNI53QHU2XT4AH4K2RWJUVJB/action/citation_signature","submit_replication":"https://pith.science/pith/UCJNI53QHU2XT4AH4K2RWJUVJB/action/replication_record"}},"created_at":"2026-05-18T01:32:09.521887+00:00","updated_at":"2026-05-18T01:32:09.521887+00:00"}