{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T08:06:01Z","timestamp":1789977961767,"version":"4.0.1"},"reference-count":58,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T00:00:00Z","timestamp":1789948800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T00:00:00Z","timestamp":1789948800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100003452","name":"Innovation and Technology Commission","doi-asserted-by":"publisher","award":["GHP\/394\/22GD"],"award-info":[{"award-number":["GHP\/394\/22GD"]}],"id":[{"id":"10.13039\/501100003452","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100007567","name":"City University of Hong Kong","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100007567","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["advanced.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Advanced Materials"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Mixed tin\u2010lead (Sn\u2013Pb) perovskite solar cells (PSCs) have great potential for photovoltaics and infrared photodetector (PD) applications. However, their performance and reliability are severely limited by non\u2010radiative recombination, both within the perovskite bulk and at the interface between the perovskite and hole transporting layer (HTL). In HTL\u2010free architectures, the buried perovskite\/ITO interface becomes the dominant extraction and recombination bottleneck, yet remains insufficiently engineered. Herein, we report an efficient HTL\u2010free mixed Sn\u2013Pb optoelectronic device by introducing isoniazid (INH) into the perovskite film (FA\n                    <jats:sub>0.6<\/jats:sub>\n                    MA\n                    <jats:sub>0.3<\/jats:sub>\n                    Cs\n                    <jats:sub>0.1<\/jats:sub>\n                    Pb\n                    <jats:sub>0.5<\/jats:sub>\n                    Sn\n                    <jats:sub>0.5<\/jats:sub>\n                    I\n                    <jats:sub>3<\/jats:sub>\n                    ) to in situ form a dipole interface and establish a built\u2010in electric field, thereby suppressing the interface\/bulk non\u2010radiative recombination and promoting hole extraction. The INH molecule can coordinate with Sn\n                    <jats:sup>2+<\/jats:sup>\n                    to modulate film crystallization, and the hydrazide group acts as a potent reducing agent, mitigating the Sn\n                    <jats:sup>2+<\/jats:sup>\n                    oxidation and passivating the defects. As a result, the optimized HTL\u2010free Sn\u2013Pb PSCs achieved a champion power conversion efficiency (PCE) of 23.71%, with improved stability that retained 80% of their initial efficiency after 2250\u00a0h in an N\n                    <jats:sub>2<\/jats:sub>\n                    glovebox. Additionally, this strategy enabled high\u2010performance HTL\u2010free PDs with a remarkable specific detectivity beyond 10\n                    <jats:sup>14<\/jats:sup>\n                    Jones at 920\u00a0nm. This work provides a strategic pathway for developing efficient HTL\u2010free Sn\u2013Pb perovskite optoelectronic devices.\n                  <\/jats:p>","DOI":"10.1002\/adma.75076","type":"journal-article","created":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T07:26:56Z","timestamp":1789975616000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Efficient Hole Transport Layer\u2010Free Mixed Sn\u2013Pb Perovskite Solar Cells and Photodetectors via In Situ Dipole Engineering"],"prefix":"10.1002","author":[{"given":"Hui","family":"Liu","sequence":"first","affiliation":[{"name":"Department of Materials Science and Engineering City University of Hong Kong  Hong Kong China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jisen","family":"Zhang","sequence":"additional","affiliation":[{"name":"Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy 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