{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:LEUZ524WX2A3EAHUGRW4EB4MCN","short_pith_number":"pith:LEUZ524W","canonical_record":{"source":{"id":"1711.08938","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-11-24T12:15:48Z","cross_cats_sorted":[],"title_canon_sha256":"8148f70f40af2247de62d41711e6ddaf5d76cda5f08c99ccd6684ac12cb59187","abstract_canon_sha256":"62d9cf537b3162610fb222c603766c15719191746b97832377c4f1da4725f256"},"schema_version":"1.0"},"canonical_sha256":"59299eeb96be81b200f4346dc2078c135fbd1208ec3b494c057c563a5c829328","source":{"kind":"arxiv","id":"1711.08938","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.08938","created_at":"2026-05-18T00:24:59Z"},{"alias_kind":"arxiv_version","alias_value":"1711.08938v1","created_at":"2026-05-18T00:24:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.08938","created_at":"2026-05-18T00:24:59Z"},{"alias_kind":"pith_short_12","alias_value":"LEUZ524WX2A3","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_16","alias_value":"LEUZ524WX2A3EAHU","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_8","alias_value":"LEUZ524W","created_at":"2026-05-18T12:31:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:LEUZ524WX2A3EAHUGRW4EB4MCN","target":"record","payload":{"canonical_record":{"source":{"id":"1711.08938","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-11-24T12:15:48Z","cross_cats_sorted":[],"title_canon_sha256":"8148f70f40af2247de62d41711e6ddaf5d76cda5f08c99ccd6684ac12cb59187","abstract_canon_sha256":"62d9cf537b3162610fb222c603766c15719191746b97832377c4f1da4725f256"},"schema_version":"1.0"},"canonical_sha256":"59299eeb96be81b200f4346dc2078c135fbd1208ec3b494c057c563a5c829328","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:24:59.370060Z","signature_b64":"VHdrqs7kSadt+c8fpTgBwsS7EVrkQDQPmv7icnbcKPHgKGEF2jomFKExqDKC3GjZeeKPMv1cev86zYSIYM2kAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"59299eeb96be81b200f4346dc2078c135fbd1208ec3b494c057c563a5c829328","last_reissued_at":"2026-05-18T00:24:59.369691Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:24:59.369691Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1711.08938","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":"2026-05-18T00:24:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1YbAICjRt0rxF3KI4b2o91KZBSK0u8CD4a58aIBr6Fo15h+Mksf6EX56IfWtS2z/Sw44hqrWWKnVknKY2huZCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T21:03:13.332131Z"},"content_sha256":"40ddbcec6023353ab015df05b094db2e01862f5842d4959fc4b7d3c5546d9712","schema_version":"1.0","event_id":"sha256:40ddbcec6023353ab015df05b094db2e01862f5842d4959fc4b7d3c5546d9712"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:LEUZ524WX2A3EAHUGRW4EB4MCN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A New Perspective on the Role of A-site Cation in Perovskite Solar Cells","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Chang Woo Myung, Geunsik Lee, Jeonghun Yun, Kwang S. Kim","submitted_at":"2017-11-24T12:15:48Z","abstract_excerpt":"As the race towards higher efficiency for inorganic/organic hybrid perovskite solar cells (PSCs) is becoming highly competitive, a design scheme to maximize carrier transport towards higher power efficiency has been urgently demanded. Here, we unravel a hidden role of A-site cation of PSCs in carrier transport which has been largely neglected, i.e., tuning the Frohlich electron-phonon (e-ph) coupling of longitudinal optical (LO) phonon by A-site cations. The key for steering Frohlich polaron is to control the interaction strength and the number of proton (or lithium) coordination to halide ion"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.08938","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":"2026-05-18T00:24:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ilx1L5IR/lu3uRDMHPNivwMszzOQMzzQviLLngWGTKCQYA1IYNZKAcODW0uTDMhp7bo65FM+HF1d5Fhukt8TBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T21:03:13.332500Z"},"content_sha256":"54b3cd802675fbb71c8e0f23aed871e77e849d4202611ffb8e01daf1ee91b33e","schema_version":"1.0","event_id":"sha256:54b3cd802675fbb71c8e0f23aed871e77e849d4202611ffb8e01daf1ee91b33e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LEUZ524WX2A3EAHUGRW4EB4MCN/bundle.json","state_url":"https://pith.science/pith/LEUZ524WX2A3EAHUGRW4EB4MCN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LEUZ524WX2A3EAHUGRW4EB4MCN/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":"2026-05-19T21:03:13Z","links":{"resolver":"https://pith.science/pith/LEUZ524WX2A3EAHUGRW4EB4MCN","bundle":"https://pith.science/pith/LEUZ524WX2A3EAHUGRW4EB4MCN/bundle.json","state":"https://pith.science/pith/LEUZ524WX2A3EAHUGRW4EB4MCN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LEUZ524WX2A3EAHUGRW4EB4MCN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:LEUZ524WX2A3EAHUGRW4EB4MCN","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":"62d9cf537b3162610fb222c603766c15719191746b97832377c4f1da4725f256","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-11-24T12:15:48Z","title_canon_sha256":"8148f70f40af2247de62d41711e6ddaf5d76cda5f08c99ccd6684ac12cb59187"},"schema_version":"1.0","source":{"id":"1711.08938","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.08938","created_at":"2026-05-18T00:24:59Z"},{"alias_kind":"arxiv_version","alias_value":"1711.08938v1","created_at":"2026-05-18T00:24:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.08938","created_at":"2026-05-18T00:24:59Z"},{"alias_kind":"pith_short_12","alias_value":"LEUZ524WX2A3","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_16","alias_value":"LEUZ524WX2A3EAHU","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_8","alias_value":"LEUZ524W","created_at":"2026-05-18T12:31:28Z"}],"graph_snapshots":[{"event_id":"sha256:54b3cd802675fbb71c8e0f23aed871e77e849d4202611ffb8e01daf1ee91b33e","target":"graph","created_at":"2026-05-18T00:24:59Z","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":"As the race towards higher efficiency for inorganic/organic hybrid perovskite solar cells (PSCs) is becoming highly competitive, a design scheme to maximize carrier transport towards higher power efficiency has been urgently demanded. Here, we unravel a hidden role of A-site cation of PSCs in carrier transport which has been largely neglected, i.e., tuning the Frohlich electron-phonon (e-ph) coupling of longitudinal optical (LO) phonon by A-site cations. The key for steering Frohlich polaron is to control the interaction strength and the number of proton (or lithium) coordination to halide ion","authors_text":"Chang Woo Myung, Geunsik Lee, Jeonghun Yun, Kwang S. Kim","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-11-24T12:15:48Z","title":"A New Perspective on the Role of A-site Cation in Perovskite Solar Cells"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.08938","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":"sha256:40ddbcec6023353ab015df05b094db2e01862f5842d4959fc4b7d3c5546d9712","target":"record","created_at":"2026-05-18T00:24:59Z","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":"62d9cf537b3162610fb222c603766c15719191746b97832377c4f1da4725f256","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-11-24T12:15:48Z","title_canon_sha256":"8148f70f40af2247de62d41711e6ddaf5d76cda5f08c99ccd6684ac12cb59187"},"schema_version":"1.0","source":{"id":"1711.08938","kind":"arxiv","version":1}},"canonical_sha256":"59299eeb96be81b200f4346dc2078c135fbd1208ec3b494c057c563a5c829328","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"59299eeb96be81b200f4346dc2078c135fbd1208ec3b494c057c563a5c829328","first_computed_at":"2026-05-18T00:24:59.369691Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:24:59.369691Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VHdrqs7kSadt+c8fpTgBwsS7EVrkQDQPmv7icnbcKPHgKGEF2jomFKExqDKC3GjZeeKPMv1cev86zYSIYM2kAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:24:59.370060Z","signed_message":"canonical_sha256_bytes"},"source_id":"1711.08938","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:40ddbcec6023353ab015df05b094db2e01862f5842d4959fc4b7d3c5546d9712","sha256:54b3cd802675fbb71c8e0f23aed871e77e849d4202611ffb8e01daf1ee91b33e"],"state_sha256":"e9f7fda605e1de4c869e92efa5257f188396ea117dfab16147c831df2c869153"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A/QoHXY+5Ang1uHPLaNsj+9w3aghUq4Gx+Ad+bKS70LwMAhiRLghiLrp3u3BxW7IXvLHvN9eabP8Tqp+yp1WCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T21:03:13.334567Z","bundle_sha256":"e0a38f56ee3103ac6afde61de7fbac2357e292c77ee8aabcc2c78cc60cbdd329"}}