{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T14:06:06Z","timestamp":1790690766088,"version":"4.1.0"},"reference-count":61,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T00:00:00Z","timestamp":1790640000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T00:00:00Z","timestamp":1790640000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/100020595","name":"National Science and Technology Council","doi-asserted-by":"publisher","award":["115\u20102221\u2010E\u2010110\u2010009\u2010and114\u20102221\u2010E\u2010110\u2010052\u2010"],"award-info":[{"award-number":["115\u20102221\u2010E\u2010110\u2010009\u2010and114\u20102221\u2010E\u2010110\u2010052\u2010"]}],"id":[{"id":"10.13039\/100020595","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Small"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Methylammonium\/bromide\u2010free perovskite solar cells (PSCs) with mixed A\u2010site cations of varying ionic radii often suffer from uncontrolled crystallization and a restricted spectral response, limiting further improvements in both power conversion efficiency (PCE) and stability. Herein, \u03c0\u2010conjugated terpyridine\u2010zinc(II) (ZnTPY) coordination nanosheets (CONASHs) are introduced as multifunctional additives for heterogeneous nucleation and down\u2010conversion, offering a versatile platform that simultaneously promotes the crystal quality of triple\u2010cation formamidinium\/cesium\/rubidium lead iodide perovskites and improves short\u2010wavelength photon utilization. Synthesized via bottom\u2010up liquid\u2010liquid interfacial coordination, ZnTPY CONASHs can be ultrasonically fragmented into pieces enriched with unsaturated terpyridine moieties, which form multidentate chelates with PbI\n                    <jats:sub>2<\/jats:sub>\n                    to generate ZnTPY\u2010[PbI\n                    <jats:sub>6\u2010x<\/jats:sub>\n                    ]\n                    <jats:sup>4\u2212<\/jats:sup>\n                    octahedral heteronuclei. These adducts promote low\u2010barrier heterogeneous nucleation in perovskites, which synergistically suppresses defect densities and prolongs photocarrier lifetimes, thereby enhancing both crystallinity and environmental stability. In parallel, the intramolecular charge\u2010transfer absorption and subsequent visible emission of CONASHs facilitate down\u2010conversion, which augments the external quantum efficiency in the 300\u2013590\u00a0nm range and optimizes ultraviolet light harvesting in the ZnTPY\u2010modified perovskites. Consequently, the PSCs with ZnTPY additive achieve a champion PCE of 22.50%, compared to 20.94% for the control, along with improved outdoor stability. These findings highlight the substantial practical potential of the CONASH\u2010induced strategy for future PSC applications.\n                  <\/jats:p>","DOI":"10.1002\/smll.76016","type":"journal-article","created":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T13:22:07Z","timestamp":1790688127000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Coordination Nanosheets\u2010Mediated Crystallization and Light Management for Efficient and Operationally Durable Methylammonium\/Bromide\u2010Free Perovskite Solar Cells"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9134-3890","authenticated-orcid":false,"given":"Dhruba B.","family":"Khadka","sequence":"first","affiliation":[{"name":"Photovoltaic Materials Group Center For GREEN Research on Energy and Environmental Materials National Institute for Materials Science (NIMS)  Tsukuba Ibaraki 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(R.O.C)"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-9564-4476","authenticated-orcid":false,"given":"Wei\u2010Hsien","family":"Wu","sequence":"additional","affiliation":[{"name":"Department of Photonics National Sun Yat\u2010sen University  Kaohsiung Taiwan (R.O.C)"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8065-7875","authenticated-orcid":false,"given":"Masatoshi","family":"Yanagida","sequence":"additional","affiliation":[{"name":"Photovoltaic Materials Group Center For GREEN Research on Energy and Environmental Materials National Institute for Materials Science (NIMS)  Tsukuba Ibaraki Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2164-5468","authenticated-orcid":false,"given":"Yasuhiro","family":"Shirai","sequence":"additional","affiliation":[{"name":"Photovoltaic Materials Group Center For GREEN Research on Energy and 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