{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T17:25:10Z","timestamp":1787073910981,"version":"build-2736575974"},"reference-count":70,"publisher":"American Chemical Society (ACS)","issue":"32","license":[{"start":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T00:00:00Z","timestamp":1785715200000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T00:00:00Z","timestamp":1785715200000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T00:00:00Z","timestamp":1785715200000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-045"}],"funder":[{"DOI":"10.13039\/501100002858","name":"China Postdoctoral Science Foundation","doi-asserted-by":"publisher","award":["2025M774192"],"award-info":[{"award-number":["2025M774192"]}],"id":[{"id":"10.13039\/501100002858","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["12274414"],"award-info":[{"award-number":["12274414"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Scientific Equipment Development Project and Youth Innovation Promotion Association Project of Chinese Academy of Sciences","award":["2020026"],"award-info":[{"award-number":["2020026"]}]},{"DOI":"10.13039\/501100012166","name":"National Key R&D Program of China","doi-asserted-by":"crossref","award":["2021YFA1600201"],"award-info":[{"award-number":["2021YFA1600201"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100012166","name":"National Key R&D Program of China","doi-asserted-by":"crossref","award":["2021YFF0704705"],"award-info":[{"award-number":["2021YFF0704705"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100012166","name":"National Key R&D Program of China","doi-asserted-by":"crossref","award":["2022YFA1403203"],"award-info":[{"award-number":["2022YFA1403203"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Major Research Plan of National Natural Science Foundation of China","award":["92263205"],"award-info":[{"award-number":["92263205"]}]},{"name":"Basic Research Program of the Chinese Academy of Sciences Based on Major Scientific Infrastructures","award":["JZHKYPT-2021-08"],"award-info":[{"award-number":["JZHKYPT-2021-08"]}]},{"name":"Anhui Provincial Major S&T Project","award":["s202305a12020005"],"award-info":[{"award-number":["s202305a12020005"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,8,18]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Bismuth-based chalcohalides are emerging as a promising family of materials for optoelectronics due to their intrinsically anisotropic optical and electronic properties. However, the lack of high-quality crystals has hindered access to their intrinsic physical properties. Here, we present the synthesis and comprehensive optoelectronic characterization of quasi-one-dimensional (1D) van der Waals (vdW) BiSeBr crystals. This work establishes a previously unreported synergy, the coexistence of ferroelectricity and self-trapped excitons (STEs) in a single quasi-1D semiconductor, and its exploitation for multifunctional polarization-sensitive photodetection. The low-dimensional chain structure of BiSeBr breaks inversion symmetry, giving rise to out-of-plane ferroelectric behavior and a second-harmonic generation signal. This symmetry breaking, together with strong electron\u2013phonon coupling, promotes the formation of self-trapped excitons. The wavelength-dependent linear dichroism reversal phenomenon reflects a k-space rotation of the dominant transition dipole moment orientation, a general feature of low-symmetry semiconductors that is further enhanced here by the ferroelectric structural distortion. The BiSeBr nanowire photodetector translates these physical mechanisms into device functionality. It exhibits broadband photoresponse from ultraviolet to near-infrared (350 to 1060 nm), with a responsivity of 2.4 \u00d7 104 A W\u20131, a specific detectivity of 3.3 \u00d7 1013 Jones, and a fast response time of 389 \u03bcs. The detector resolves a clear polarization sensitivity reversal between the visible and near-infrared regions. These results establish BiSeBr as a platform for broadband polarization-sensitive photodetection in which multifunctionality is not achieved by stacking disparate materials, but emerges from the intrinsic synergy between ferroelectricity and strong electron\u2013phonon coupling within a single quasi-one-dimensional vdW crystal.<\/jats:p>","DOI":"10.1021\/acsnano.6c08218","type":"journal-article","created":{"date-parts":[[2026,8,4]],"date-time":"2026-08-04T14:36:45Z","timestamp":1785854205000},"page":"22823-22837","source":"Crossref","is-referenced-by-count":0,"title":["Self-Trapped\nExcitons and Room-Temperature Ferroelectricity\nin Quasi-One-Dimensional Semiconductor BiSeBr for Polarization-Sensitive\nOptoelectronics"],"prefix":"10.1021","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5423-6295","authenticated-orcid":true,"given":"Wanli","family":"Zhu","sequence":"first","affiliation":[{"name":"Hefei Institutes of Physical Science, Chinese Academy of Sciences , , ,","place":["Hefei, China, 230031"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-1602-5939","authenticated-orcid":true,"given":"Weili","family":"Zhen","sequence":"additional","affiliation":[{"name":"Hefei Institutes of Physical Science, Chinese Academy of Sciences , , ,","place":["Hefei, China, 230031"]},{"name":"Beijing Institute of Technology , , ,","place":["Beijing, China, 100081"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rui","family":"Niu","sequence":"additional","affiliation":[{"name":"Hefei Institutes of Physical Science, Chinese Academy of Sciences , , ,","place":["Hefei, China, 230031"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weiting","family":"Miao","sequence":"additional","affiliation":[{"name":"Hefei Institutes of Physical Science, Chinese Academy of Sciences , , ,","place":["Hefei, China, 230031"]},{"name":"Beijing Institute of Technology , , ,","place":["Beijing, China, 100081"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1667-2632","authenticated-orcid":true,"given":"Xiangmin","family":"Meng","sequence":"additional","affiliation":[{"name":"Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , , ,","place":["Beijing, China, 100190"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4312-7012","authenticated-orcid":true,"given":"Wenka","family":"Zhu","sequence":"additional","affiliation":[{"name":"Hefei Institutes of Physical Science, Chinese Academy of Sciences , , ,","place":["Hefei, China, 230031"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianhui","family":"Zhou","sequence":"additional","affiliation":[{"name":"Hefei Institutes of Physical Science, Chinese Academy of Sciences , , ,","place":["Hefei, China, 230031"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6092-1344","authenticated-orcid":true,"given":"Jing","family":"Xia","sequence":"additional","affiliation":[{"name":"Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , , ,","place":["Beijing, China, 100190"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yongjian","family":"Wang","sequence":"additional","affiliation":[{"name":"Hefei Institutes of Physical Science, Chinese Academy of Sciences , , ,","place":["Hefei, China, 230031"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Changjin","family":"Zhang","sequence":"additional","affiliation":[{"name":"Hefei Institutes of Physical Science, Chinese Academy of Sciences , , ,","place":["Hefei, China, 230031"]},{"name":"Anhui University , , ,","place":["Hefei, China, 230601"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,8,3]]},"reference":[{"key":"2026081810310854000_cit1","doi-asserted-by":"publisher","first-page":"541","DOI":"10.1038\/s41586-018-0691-0","article-title":"Efficient and stable emission of\nwarm-white light from lead-free\nhalide double perovskites","volume":"563","author":"Luo","year":"2018","journal-title":"Nature"},{"key":"2026081810310854000_cit2","doi-asserted-by":"publisher","first-page":"23079","DOI":"10.1021\/acsnano.3c08748","article-title":"Small to Large Polaron\nBehavior Induced by Controlled\nInteractions in Perovskite Quantum Dot Solids","volume":"17","author":"Kim","year":"2023","journal-title":"ACS Nano"},{"key":"2026081810310854000_cit3","doi-asserted-by":"publisher","first-page":"2308487","DOI":"10.1002\/adma.202308487","article-title":"Highly bright and stable\nlead-free double perovskite white light-emitting\ndiodes","volume":"36","author":"Jin","year":"2024","journal-title":"Adv. Mater."},{"key":"2026081810310854000_cit4","doi-asserted-by":"publisher","first-page":"23437","DOI":"10.1021\/jacs.4c06621","article-title":"Revisiting sub-band gap emission mechanism\nin 2D halide perovskites: the role of defect states","volume":"146","author":"Levine","year":"2024","journal-title":"J. Am. Chem. Soc."},{"key":"2026081810310854000_cit5","doi-asserted-by":"publisher","first-page":"952","DOI":"10.1038\/s41566-025-01716-y","article-title":"Local lattice softening in semiconductor quantum dots\nfor efficient white light-emitting diode","volume":"19","author":"Wang","year":"2025","journal-title":"Nat.\nPhotonics"},{"key":"2026081810310854000_cit6","doi-asserted-by":"publisher","first-page":"13154","DOI":"10.1021\/ja507086b","article-title":"Intrinsic\nwhite-light emission from layered hybrid perovskites","volume":"136","author":"Dohner","year":"2014","journal-title":"J. Am. Chem. 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Sci."},{"key":"2026081810310854000_cit16","doi-asserted-by":"publisher","first-page":"489","DOI":"10.1038\/s41467-020-14365-2","article-title":"Large lattice\ndistortions and size-dependent bandgap modulation in epitaxial halide\nperovskite nanowires","volume":"11","author":"Oksenberg","year":"2020","journal-title":"Nat. Commun."},{"key":"2026081810310854000_cit17","doi-asserted-by":"publisher","first-page":"24549","DOI":"10.1021\/jacs.3c05657","article-title":"Synergistic role of\nwater and oxygen leads\nto degradation in formamidinium-based halide perovskites","volume":"145","author":"Hidalgo","year":"2023","journal-title":"J. Am. Chem. Soc."},{"key":"2026081810310854000_cit18","doi-asserted-by":"publisher","first-page":"14","DOI":"10.1038\/s41524-018-0071-1","article-title":"Bismuth and antimony-based\noxyhalides and chalcohalides as potential optoelectronic materials","volume":"4","author":"Ran","year":"2018","journal-title":"Npj Comput. 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Mater."},{"key":"2026081810310854000_cit21","doi-asserted-by":"publisher","first-page":"9851","DOI":"10.1021\/acsnano.1c00781","article-title":"Spectrum of exfoliable 1D van der\nWaals molecular wires and their electronic properties","volume":"15","author":"Zhu","year":"2021","journal-title":"ACS Nano"},{"key":"2026081810310854000_cit22","doi-asserted-by":"publisher","first-page":"2201577","DOI":"10.1002\/adfm.202201577","article-title":"Unprecedented wavelength dependence of an antimony\nchalcohalide photovoltaic device","volume":"32","author":"Nishikubo","year":"2022","journal-title":"Adv. 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Mater."},{"key":"2026081810310854000_cit27","doi-asserted-by":"publisher","first-page":"214106","DOI":"10.1103\/PhysRevB.93.214106","article-title":"Ab initio approach to structural,\nelectronic, and ferroelectric properties of antimony sulphoiodide","volume":"93","author":"Amoroso","year":"2016","journal-title":"Phys. Rev. B"},{"key":"2026081810310854000_cit28","doi-asserted-by":"publisher","first-page":"37","DOI":"10.1080\/00150199808213496","article-title":"Origin of ferroelectricity\nin SbSI","volume":"219","author":"Audzijonis","year":"1998","journal-title":"Ferroelectrics"},{"key":"2026081810310854000_cit29","doi-asserted-by":"publisher","first-page":"74","DOI":"10.1016\/j.mattod.2022.03.015","article-title":"One-dimensional\nvan der Waals quantum materials","volume":"55","author":"Balandin","year":"2022","journal-title":"Mater. Today"},{"key":"2026081810310854000_cit30","doi-asserted-by":"publisher","first-page":"9764","DOI":"10.1021\/jacs.9b02365","article-title":"Disphenoidal\nzero-dimensional lead, tin, and germanium\nhalides: highly emissive singlet and triplet self-trapped excitons\nand X-ray scintillation","volume":"141","author":"Morad","year":"2019","journal-title":"J. Am. Chem. Soc."},{"key":"2026081810310854000_cit31","doi-asserted-by":"publisher","first-page":"15435","DOI":"10.1002\/anie.201907503","article-title":"Intrinsic\nself-trapped emission in\n0D lead-free (C4H14N2) 2In2Br10 single crystal","volume":"58","author":"Zhou","year":"2019","journal-title":"Angew. Chem., Int. Ed."},{"key":"2026081810310854000_cit32","doi-asserted-by":"publisher","first-page":"4137","DOI":"10.1021\/acs.nanolett.0c04169","article-title":"Zone-folded longitudinal acoustic\nphonons driving self-trapped state emission in colloidal CdSe nanoplatelet\nsuperlattices","volume":"21","author":"Sui","year":"2021","journal-title":"Nano Lett."},{"key":"2026081810310854000_cit33","doi-asserted-by":"publisher","first-page":"9123","DOI":"10.1021\/jacs.1c03064","article-title":"Giant Huang\u2013Rhys\nfactor for electron capture by the iodine\nintersitial in perovskite solar cells","volume":"143","author":"Whalley","year":"2021","journal-title":"J. Am.\nChem. 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Mater."},{"key":"2026081810310854000_cit37","doi-asserted-by":"publisher","first-page":"311","DOI":"10.1038\/s41566-022-00970-8","article-title":"Cavity-enhanced linear dichroism in a van der Waals\nantiferromagnet","volume":"16","author":"Zhang","year":"2022","journal-title":"Nat. Photonics"},{"key":"2026081810310854000_cit38","doi-asserted-by":"publisher","first-page":"846","DOI":"10.1038\/s41563-019-0416-2","article-title":"High-resolution remote thermometry\nand thermography\nusing luminescent low-dimensional tin-halide perovskites","volume":"18","author":"Yakunin","year":"2019","journal-title":"Nat. Mater."},{"key":"2026081810310854000_cit39","doi-asserted-by":"publisher","first-page":"046903","DOI":"10.1103\/PhysRevLett.133.046903","article-title":"Ab Initio self-trapped\nexcitons","volume":"133","author":"Bai","year":"2024","journal-title":"Phys. Rev. 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Nano Mater."},{"key":"2026081810310854000_cit42","doi-asserted-by":"publisher","first-page":"1867","DOI":"10.1016\/j.scib.2023.08.004","article-title":"Dual-band real-time\nobject identification via polarization reversal\nbased on 2D GeSe image sensor","volume":"68","author":"Yu","year":"2023","journal-title":"Sci. Bull."},{"key":"2026081810310854000_cit43","doi-asserted-by":"publisher","first-page":"2307769","DOI":"10.1002\/adma.202307769","article-title":"Polarization Reversal\nof Group IV\u2013VI Semiconductors with Pucker-Like\nStructure: Mechanism Dissecting and Function Demonstration","volume":"36","author":"Yu","year":"2024","journal-title":"Adv. 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