{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T03:01:54Z","timestamp":1792033314331,"version":"4.4.0"},"reference-count":59,"publisher":"Wiley","issue":"21","license":[{"start":{"date-parts":[[2025,4,3]],"date-time":"2025-04-03T00:00:00Z","timestamp":1743638400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2025,4,3]],"date-time":"2025-04-03T00:00:00Z","timestamp":1743638400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["advanced.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Advanced Materials"],"published-print":{"date-parts":[[2025,5]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Chiral hybrid metal halides show great promise for nonlinear optical (NLO) applications like circularly polarized second harmonic generation (SHG). The inherent toxicity of lead is a concern for the widespread adoption of frequently explored lead\u2010based chiral hybrid halides. Here, we report the second and third\u2010order NLO properties of lead\u2010free 0D chiral compounds, (\n                    <jats:italic>R<\/jats:italic>\n                    \u2010\/\n                    <jats:italic>S<\/jats:italic>\n                    \u2010MBA)\n                    <jats:sub>4<\/jats:sub>\n                    Bi\n                    <jats:sub>2<\/jats:sub>\n                    I\n                    <jats:sub>10<\/jats:sub>\n                    , and their achiral counterpart, (\n                    <jats:italic>R<\/jats:italic>\n                    ac\u2010MBA)\n                    <jats:sub>4<\/jats:sub>\n                    Bi\n                    <jats:sub>2<\/jats:sub>\n                    I\n                    <jats:sub>10<\/jats:sub>\n                    (MBA: methylbenzylammonium) under excitation wavelength ranging 1360\u20131590\u00a0nm. Chiral (\n                    <jats:italic>R<\/jats:italic>\n                    \u2010\/\n                    <jats:italic>S<\/jats:italic>\n                    \u2010MBA)\n                    <jats:sub>4<\/jats:sub>\n                    Bi\n                    <jats:sub>2<\/jats:sub>\n                    I\n                    <jats:sub>10<\/jats:sub>\n                    exhibits strong SHG along with stronger third harmonic generation (THG). The chiral crystals showed high sensitivity to the handedness of circularly polarized pump light (\n                    <jats:italic>g<\/jats:italic>\n                    <jats:sub>\n                      <jats:italic>SHG<\/jats:italic>\n                      \u2212\n                      <jats:italic>CD<\/jats:italic>\n                    <\/jats:sub>\n                    \u2248 9% at 1510\u00a0nm). The THG response shows resonance enhancement matching the excitonic absorption. Achiral (\n                    <jats:italic>R<\/jats:italic>\n                    ac\u2010MBA)\n                    <jats:sub>4<\/jats:sub>\n                    Bi\n                    <jats:sub>2<\/jats:sub>\n                    I\n                    <jats:sub>10<\/jats:sub>\n                    exhibits the maximum THG response (\u03c7\n                    <jats:sup>(3)<\/jats:sup>\n                    = 1.05 \u00d7 10\u207b\u00b9\u2078\u00a0m\n                    <jats:sup>2<\/jats:sup>\n                    \u00a0V\n                    <jats:sup>\u2212<\/jats:sup>\n                    <jats:sup>2<\/jats:sup>\n                    )\n                    <jats:sub>.<\/jats:sub>\n                    Z\u2010scan measurements with non\u2010resonant femtosecond pulse excitation at 800\u00a0nm yield high nonlinear absorption coefficients (\u03b2) and nonlinear refractive index (n\n                    <jats:sub>2<\/jats:sub>\n                    ) for all three samples, with (\n                    <jats:italic>R<\/jats:italic>\n                    ac\u2010MBA)\n                    <jats:sub>4<\/jats:sub>\n                    Bi\n                    <jats:sub>2<\/jats:sub>\n                    I\n                    <jats:sub>10<\/jats:sub>\n                    exhibiting the highest values. These hybrid chiral metal halides, with efficient second and third\u2010order nonlinearity, and high optical stability, are potential candidates for NLO applications such as Kerr\u2010based optical switching, circularly polarized up\u2010conversion, and communication.\n                  <\/jats:p>","DOI":"10.1002\/adma.202501022","type":"journal-article","created":{"date-parts":[[2025,4,4]],"date-time":"2025-04-04T22:08:16Z","timestamp":1743804496000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":38,"title":["Nonlinear Optical Properties of 0D Chiral Hybrid Bismuth Iodides"],"prefix":"10.1002","volume":"37","author":[{"given":"Aman","family":"Chaturvedi","sequence":"first","affiliation":[{"name":"Department of Chemistry Indian Institute of Science Education and Research (IISER) Pune  Pune 411008 India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Parikshit Kumar","family":"Rajput","sequence":"additional","affiliation":[{"name":"Department of Chemistry Indian Institute of Science Education and Research (IISER) Pune  Pune 411008 India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2708-1803","authenticated-orcid":false,"given":"Shabnum","family":"Maqbool","sequence":"additional","affiliation":[{"name":"Department of Chemistry Indian Institute of Science Education and Research (IISER) Pune  Pune 411008 India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2308-334X","authenticated-orcid":false,"given":"Angshuman","family":"Nag","sequence":"additional","affiliation":[{"name":"Department of Chemistry Indian Institute of Science Education and Research (IISER) Pune  Pune 411008 India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1215-179X","authenticated-orcid":false,"given":"Pankaj","family":"Mandal","sequence":"additional","affiliation":[{"name":"Department of Chemistry Indian Institute of Science Education and Research (IISER) Pune  Pune 411008 India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,4,3]]},"reference":[{"key":"e_1_2_8_1_1","first-page":"1","volume-title":"Nonlinear Optics","author":"Boyd R. 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