{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:J62ST5XX67RE5YIBNONB2C7ERG","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":"3c236edc5030585084ef7ad9a0bf3dbd9464e2051ab4965203996241c19763eb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-07-04T18:11:50Z","title_canon_sha256":"4d5117915033b1aad958f410291d0a73e468fff291604d87bd8c867e9ea322e0"},"schema_version":"1.0","source":{"id":"1707.01121","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.01121","created_at":"2026-05-18T00:01:00Z"},{"alias_kind":"arxiv_version","alias_value":"1707.01121v2","created_at":"2026-05-18T00:01:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.01121","created_at":"2026-05-18T00:01:00Z"},{"alias_kind":"pith_short_12","alias_value":"J62ST5XX67RE","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"J62ST5XX67RE5YIB","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"J62ST5XX","created_at":"2026-05-18T12:31:21Z"}],"graph_snapshots":[{"event_id":"sha256:d1ddc003f0b678982ada1cf4f3512f7770196d609c0e034d15e05bbd03784733","target":"graph","created_at":"2026-05-18T00:01:00Z","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-growth or post-deposition treatment of $Cu_{2}ZnSnS_{4}$ (CZTS) absorber layer had led to improved photovoltaic efficiency, however, the underlying physical mechanism of such improvements are less studied. In this study, the thermodynamics of Na and K related defects in CZTS are investigated from first principle approach using hybrid functional, with chemical potential of Na and K established from various phases of their polysulphides. Both Na and K predominantly substitute on Cu sites similar to their behavior in $Cu(In,Ga)Se_{2}$, in contrast to previous results using the generalized grad","authors_text":"Jingzhao Zhang, Junyi Zhu, Kinfai Tse, Manhoi Wong, Michael Scarpulla, Yiou Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-07-04T18:11:50Z","title":"Defect Properties of Na and K in Cu2ZnSnS4 from Hybrid Functional Calculation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.01121","kind":"arxiv","version":2},"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:e52a2a2dfad4bc381fe13e7ad261d02b59ad6d177e0e0e0ae5f68ed8130ec449","target":"record","created_at":"2026-05-18T00:01:00Z","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":"3c236edc5030585084ef7ad9a0bf3dbd9464e2051ab4965203996241c19763eb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-07-04T18:11:50Z","title_canon_sha256":"4d5117915033b1aad958f410291d0a73e468fff291604d87bd8c867e9ea322e0"},"schema_version":"1.0","source":{"id":"1707.01121","kind":"arxiv","version":2}},"canonical_sha256":"4fb529f6f7f7e24ee1016b9a1d0be489bf6cec5a66832ecc5cf80268eb214695","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4fb529f6f7f7e24ee1016b9a1d0be489bf6cec5a66832ecc5cf80268eb214695","first_computed_at":"2026-05-18T00:01:00.542191Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:01:00.542191Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9U4ZXY3A9yb+eC4geUQ4/KRuzi1OlZ3nRF4v+JWJ3XSMECrGIWeqeXf5ghaHf7nFcFkU/paInSGWGrMPHqa9DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:01:00.542725Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.01121","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e52a2a2dfad4bc381fe13e7ad261d02b59ad6d177e0e0e0ae5f68ed8130ec449","sha256:d1ddc003f0b678982ada1cf4f3512f7770196d609c0e034d15e05bbd03784733"],"state_sha256":"21a5e174f49b3a607b6a6624479f9b84de5f01105e5730de4b1a008b76a217ab"}