{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T22:00:42Z","timestamp":1790287242155,"version":"4.1.0"},"reference-count":23,"publisher":"Optica Publishing Group","issue":"19","license":[{"start":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T00:00:00Z","timestamp":1790208000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR"},{"start":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T00:00:00Z","timestamp":1790208000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"name":"Natural Science Foundation of Tianjin","award":["20JCZDJC00060"],"award-info":[{"award-number":["20JCZDJC00060"]}]},{"name":"National Natural Science Foundation of China","award":["12374257"],"award-info":[{"award-number":["12374257"]}],"id":[{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"publisher"}]},{"name":"National Natural Science Foundation of China","award":["62404101"],"award-info":[{"award-number":["62404101"]}],"id":[{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Lett."],"published-print":{"date-parts":[[2026,10,1]]},"abstract":"<jats:p>\n                    Bipolar photoresponse photodetectors enable spectral discrimination and optical logic, but conventional devices often suffer from poor stability and complex fabrication. Here, we report a fully solid-state, chip-scale BaTiO\n                    <jats:sub>3<\/jats:sub>\n                    \/ZnO heterojunction photodetector with a simple structure, compact size, and precise wavelength discrimination. Under self-powered operation, it selectively detects 330\u202fnm and 395\u202fnm light with positive and negative photocurrents, showing responsivities of 6.7 and \u221226.1\u202fmA\/W, respectively. Fast response and narrow wavelength selectivity (\u223c67\u202fnm) are achieved via optimized pyroelectric current regulation. The interplay between the photovoltaic effect in the heterojunction and the polarization of the BaTiO\n                    <jats:sub>3<\/jats:sub>\n                    is investigated. Finally, a 5 \u00d7 5 BaTiO\n                    <jats:sub>3<\/jats:sub>\n                    \/ZnO array was further demonstrated for encrypted imaging. This work presents a compact, high-performance platform for precise light-wavelength discrimination, optical logic, and secure optical communication.\n                  <\/jats:p>","DOI":"10.1364\/ol.608553","type":"journal-article","created":{"date-parts":[[2026,9,4]],"date-time":"2026-09-04T16:00:12Z","timestamp":1788537612000},"page":"5458","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Bipolar photoresponse in a BaTiO\n                    <sub>3<\/sub>\n                    \/ZnO heterojunction photodetector for precise light-wavelength discrimination"],"prefix":"10.1364","volume":"51","author":[{"given":"Kai","family":"Tang","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00xsr9m91","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jialin","family":"Song","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00xsr9m91","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ang","family":"Li","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00xsr9m91","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haiming","family":"Zhang","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00xsr9m91","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mingming","family":"Jiang","sequence":"additional","affiliation":[{"name":"Nanjing University of Aeronautics and Astronautics"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,9,24]]},"reference":[{"key":"ol-51-19-5458-R1","doi-asserted-by":"publisher","first-page":"2202524","DOI":"10.1002\/adfm.202202524","type":"journal-article","volume":"32","author":"Fang","year":"2022","journal-title":"Adv. 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All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.","name":"copyright","label":"Copyright"}]}}