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However, the preparation of compact perovskite thick films with large area is still challenging due to the limitation of feasible ink formulation and pinholes caused by solvent volatilization. Post\u2010treatment and hot\u2010pressing are usually involved to improve the film quality, which is however unsuitable for subsequent integration. In this work, a homogeneous bridging strategy is developed to prepare compact perovskite films directly. A stable perovskite slurry with suitable viscosity consisting of undissolved grains and supersaturated solution is formed by adding a weak coordination solvent to the pre\u2010synthesized microcrystalline powders. Small perovskite grains in situ grow from the saturated solution during the annealing, filling the pinholes and connecting the surrounding original grains. As a result, large\u2010area perovskite thick film with tight grain arrangement and ultralow current drift is blade\u2010coated to achieve X\u2010ray imaging. The optimal device displays an impressive mobility\u2010lifetime product of 2.2\u00a0\u00d7\u00a010\n                    <jats:sup>\u22123<\/jats:sup>\n                    \u00a0cm\n                    <jats:sup>2<\/jats:sup>\n                    \u00a0V\n                    <jats:sup>\u22121<\/jats:sup>\n                    and a champion ratio of sensitivity to the dark current density of 2.23\u00a0\u00d7\u00a010\n                    <jats:sup>11<\/jats:sup>\n                    \u00a0\u00b5C\u00a0Gy\n                    <jats:sub>air<\/jats:sub>\n                    <jats:sup>\u22121<\/jats:sup>\n                    \u00a0A\n                    <jats:sup>\u22121<\/jats:sup>\n                    . This work provides a simple and effective route to prepare high\u2010quality perovskite thick films, which is instructive for the development of perovskite\u2010based X\u2010ray flat\u2010panel detectors.\n                  <\/jats:p>","DOI":"10.1002\/smll.202305357","type":"journal-article","created":{"date-parts":[[2023,8,27]],"date-time":"2023-08-27T22:27:16Z","timestamp":1693175236000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":42,"title":["Homogeneous Bridging Induces Compact and Scalable Perovskite Thick Films for X\u2010Ray Flat\u2010Panel Detectors"],"prefix":"10.1002","volume":"19","author":[{"given":"Yingjun","family":"Chai","sequence":"first","affiliation":[{"name":"MIIT Key Laboratory of Advanced Display Material and Devices School of Material Science and Engineering Nanjing University of Science and Technology  Nanjing 210094 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Laboratory of Advanced Display Material and Devices School of Material Science and Engineering Nanjing University of Science and Technology  Nanjing 210094 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wanqiu","family":"Yang","sequence":"additional","affiliation":[{"name":"MIIT Key Laboratory of Advanced Display Material and Devices School of Material Science and Engineering Nanjing University of Science and Technology  Nanjing 210094 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chongkang","family":"Li","sequence":"additional","affiliation":[{"name":"MIIT Key Laboratory of Advanced Display Material and Devices School of Material Science and Engineering Nanjing University of Science and Technology  Nanjing 210094 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0281-3617","authenticated-orcid":false,"given":"Haibo","family":"Zeng","sequence":"additional","affiliation":[{"name":"MIIT 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