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Traditional thick polycrystalline scintillators suffer from severe internal light scattering, which limits imaging resolution and low\u2010dose detection capability. Here, we present a pixelated scintillation screen with a waveguide architecture based on a Si\u2010SiO\n                    <jats:sub>2<\/jats:sub>\n                    array (SOA) template, in which crystalline Cs\n                    <jats:sub>5<\/jats:sub>\n                    Cu\n                    <jats:sub>3<\/jats:sub>\n                    Cl\n                    <jats:sub>6<\/jats:sub>\n                    I\n                    <jats:sub>2<\/jats:sub>\n                    , a low\u2010dimensional perovskite\u2010like halide, is used as the scintillation medium. The low\u2010refractive\u2010index SiO\n                    <jats:sub>2<\/jats:sub>\n                    layer enables total internal reflection (TIR) for vertical photon guidance, while the Si substrate provides both high x\u2010ray transmittance and visible light absorption, effectively reducing optical crosstalk. Using a vacuum\u2010assisted infiltration process, Cs\n                    <jats:sub>5<\/jats:sub>\n                    Cu\n                    <jats:sub>3<\/jats:sub>\n                    Cl\n                    <jats:sub>6<\/jats:sub>\n                    I\n                    <jats:sub>2<\/jats:sub>\n                    is infiltrated and recrystallized within the SOA channels, yielding a well\u2010confined scintillator structure that suppresses lateral scattering and enhances vertical photon transport. Compared to conventional film\u2010based scintillators, the SOA\u2010based design exhibits markedly improved imaging performance, achieving a spatial resolution of 20.10 lp\u00b7mm\n                    <jats:sup>\u22121<\/jats:sup>\n                    and a minimum detectable dose of 35 nGy\u00b7s\n                    <jats:sup>\u22121<\/jats:sup>\n                    . In addition, the fabrication process is highly scalable, allowing flexible construction of scintillator arrays with tailored pixel sizes and layouts. This approach provides a promising strategy for next\u2010generation x\u2010ray imaging with simultaneously high resolution and low\u2010dose sensitivity.\n                  <\/jats:p>","DOI":"10.1002\/smtd.70877","type":"journal-article","created":{"date-parts":[[2026,7,22]],"date-time":"2026-07-22T06:31:46Z","timestamp":1784701906000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Pixelated Scintillator Arrays with Si\u2010SiO\n                    <sub>2<\/sub>\n                    Waveguiding Architecture for High\u2010Resolution x\u2010ray Imaging"],"prefix":"10.1002","volume":"10","author":[{"given":"Xinlin","family":"Li","sequence":"first","affiliation":[{"name":"School of Physical Science and Technology Laboratory of Optoelectronic Materials and Detection Technology Guangxi Key Laboratory for Relativistic Astrophysics Guangxi University  Nanning China"},{"name":"Center On Nanoenergy Research Guangxi University  Nanning China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiaxing","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Physical Science and Technology Laboratory of Optoelectronic Materials and Detection Technology Guangxi Key Laboratory for Relativistic Astrophysics Guangxi University  Nanning China"},{"name":"Center On Nanoenergy Research Guangxi University  Nanning China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junxin","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Physical Science and Technology Laboratory of Optoelectronic Materials and Detection Technology Guangxi Key Laboratory for Relativistic Astrophysics Guangxi University  Nanning China"},{"name":"Center On Nanoenergy Research Guangxi University  Nanning China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaodan","family":"Mei","sequence":"additional","affiliation":[{"name":"School of Physical Science and Technology Laboratory of Optoelectronic Materials and Detection Technology Guangxi Key Laboratory for Relativistic Astrophysics Guangxi University  Nanning China"},{"name":"Center On Nanoenergy Research Guangxi University  Nanning China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junchun","family":"Li","sequence":"additional","affiliation":[{"name":"School of Materials Science and Engineering Hefei University of Technology  Hefei China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9689-6061","authenticated-orcid":false,"given":"Guoqing","family":"Tong","sequence":"additional","affiliation":[{"name":"School of Materials Science and Engineering Hefei University of Technology  Hefei China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hongbang","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Physical Science and Technology Laboratory of Optoelectronic Materials and Detection Technology Guangxi Key Laboratory for Relativistic Astrophysics Guangxi University  Nanning China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tao","family":"Lin","sequence":"additional","affiliation":[{"name":"School of Physical Science and Technology Laboratory of Optoelectronic Materials and Detection Technology Guangxi Key Laboratory for Relativistic Astrophysics Guangxi University  Nanning China"},{"name":"Center On Nanoenergy Research Guangxi University  Nanning China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,7,21]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.34133\/2021\/9892152"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1089\/3dp.2018.0060"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.compscitech.2017.10.023"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1038\/s43586\u2010021\u201000015\u20104"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsenergylett.0c02430"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41586\u2010018\u20100451\u20101"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.201801743"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/adom.202002144"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1002\/advs.202205536"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.matt.2020.11.015"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsami.3c05856"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jlumin.2022.118910"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1088\/1674\u20101137\/38\/11\/116003"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.201904711"},{"key":"e_1_2_8_16_1","doi-asserted-by":"publisher","DOI":"10.1038\/srep37254"},{"key":"e_1_2_8_17_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202001215"},{"key":"e_1_2_8_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.mser.2019.100518"},{"key":"e_1_2_8_19_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsnano.8b09484"},{"key":"e_1_2_8_20_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202303738"},{"key":"e_1_2_8_21_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cej.2024.158648"},{"key":"e_1_2_8_22_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202312053"},{"key":"e_1_2_8_23_1","doi-asserted-by":"publisher","DOI":"10.1039\/d3nr02841k"},{"key":"e_1_2_8_24_1","doi-asserted-by":"publisher","DOI":"10.1007\/s12274\u2010022\u20104205\u2010x"},{"key":"e_1_2_8_25_1","doi-asserted-by":"publisher","DOI":"10.1002\/adom.202101194"},{"key":"e_1_2_8_26_1","doi-asserted-by":"publisher","DOI":"10.1002\/mp.16167"},{"key":"e_1_2_8_27_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202417248"},{"key":"e_1_2_8_28_1","doi-asserted-by":"publisher","DOI":"10.1021\/acscentsci.2c01495"},{"key":"e_1_2_8_29_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.jpcc.2c03453"},{"key":"e_1_2_8_30_1","doi-asserted-by":"publisher","DOI":"10.1109\/tns.2015.2391197"},{"key":"e_1_2_8_31_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cej.2024.151908"},{"key":"e_1_2_8_32_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202405499"},{"key":"e_1_2_8_33_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41566\u2010023\u201001204\u20101"},{"key":"e_1_2_8_34_1","doi-asserted-by":"publisher","DOI":"10.1002\/eem2.70238"},{"key":"e_1_2_8_35_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.mattod.2022.04.009"},{"key":"e_1_2_8_36_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jallcom.2025.178916"},{"key":"e_1_2_8_37_1","doi-asserted-by":"crossref","unstructured":"W. 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