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Herein, we propose a synergistic strategy that integrates trap engineering and F\u00f6rster resonance energy transfer (FRET) process for dynamically adjusting the emission color and lifetime. Expired rice\u2010derived carbon dots@Zn\u2010doping alumina (CDs@Zn\n                    <jats:italic>\n                      <jats:sub>x<\/jats:sub>\n                    <\/jats:italic>\n                    Al\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>3<\/jats:sub>\n                    ) composites with standout RTP properties are designed and fabricated using an in situ preparation strategy. In situ Zn\n                    <jats:sup>2+<\/jats:sup>\n                    doping is employed to engineer trap states within amorphous Al\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>3<\/jats:sub>\n                    , which not only optimizes the energy level structure of confined CDs but also enables precise modulation of phosphorescence color and lifetime. The optimized CDs@Zn\n                    <jats:sub>1.5%<\/jats:sub>\n                    Al\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>3<\/jats:sub>\n                    composite achieves an ultralong green RTP duration of up to 22 s. Furthermore, by introducing newly synthesized red\u2010emissive TPA\u2010\u03b2\u2010CD\u2010aggregates with excellent aggregation\u2010induced emission (AIE) performance as an energy acceptor, efficient singlet\u2010to\u2010singlet and triplet\u2010to\u2010singlet FRET (SS\u2010FRET\/TS\u2010FRET) pathways are established. Tuning the doping ratio allows dynamic control over the competition between these pathways, resulting in finely adjustable multicolor RTP emissions. This work demonstrates a versatile platform for creating color\u2010tunable, ultralong RTP materials and showcases their direct application in time\u2010gated, multilevel security encryption.\n                  <\/jats:p>","DOI":"10.1002\/adma.73441","type":"journal-article","created":{"date-parts":[[2026,5,21]],"date-time":"2026-05-21T07:16:03Z","timestamp":1779347763000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Zinc\u2010Doping Trap Engineering and FRET Synergy Enable Multicolor Room\u2010Temperature Phosphorescence in Rice\u2010Derived Carbon Dots Confined in Amorphous Alumina for Advanced Encryption"],"prefix":"10.1002","volume":"38","author":[{"given":"Xiaokang","family":"Zhang","sequence":"first","affiliation":[{"name":"Country College of Chemistry and Material Science Shandong Agricultural University  Taian Shandong 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China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,5,21]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/Adma.202401220"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1021\/Acsanm.5c01578"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/Adma.202418335"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/Adma.202403775"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/Adfm.202207296"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/Smll.202201223"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/Adfm.202509988"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/J.Cej.2025.159246"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1039\/D3mh01034a"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1007\/S11783\u2010020\u20101227\u2010Z"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1107\/S2052252518015786"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/J.Jwpe.2023.103677"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1002\/Anie.202107295"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/J.Cclet.2024.110676"},{"key":"e_1_2_8_16_1","doi-asserted-by":"publisher","DOI":"10.1007\/S11426\u2010025\u20102684\u20102"},{"key":"e_1_2_8_17_1","doi-asserted-by":"publisher","DOI":"10.1038\/S41467\u2010019\u201013843\u20106"},{"key":"e_1_2_8_18_1","doi-asserted-by":"publisher","DOI":"10.1021\/Accountsmr.2c00233"},{"key":"e_1_2_8_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/J.Colsurfa.2021.127788"},{"key":"e_1_2_8_20_1","doi-asserted-by":"publisher","DOI":"10.1002\/Anie.202103200"},{"key":"e_1_2_8_21_1","doi-asserted-by":"publisher","DOI":"10.1002\/Anie.202011553"},{"key":"e_1_2_8_22_1","doi-asserted-by":"publisher","DOI":"10.1016\/J.Snb.2023.133946"},{"key":"e_1_2_8_23_1","doi-asserted-by":"publisher","DOI":"10.1007\/S11664\u2010020\u201008121\u2010X"},{"key":"e_1_2_8_24_1","doi-asserted-by":"publisher","DOI":"10.1016\/J.Ceramint.2020.05.125"},{"key":"e_1_2_8_25_1","doi-asserted-by":"publisher","DOI":"10.1016\/J.Ceramint.2015.09.169"},{"key":"e_1_2_8_26_1","doi-asserted-by":"publisher","DOI":"10.1016\/J.Apsusc.2020.146301"},{"key":"e_1_2_8_27_1","doi-asserted-by":"publisher","DOI":"10.1016\/J.Apsusc.2017.11.040"},{"key":"e_1_2_8_28_1","doi-asserted-by":"publisher","DOI":"10.1016\/J.Spmi.2016.03.043"},{"key":"e_1_2_8_29_1","doi-asserted-by":"publisher","DOI":"10.1021\/Acs.Inorgchem.4c03356"},{"key":"e_1_2_8_30_1","doi-asserted-by":"publisher","DOI":"10.1186\/S11671\u2010017\u20102160\u20103"},{"key":"e_1_2_8_31_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0169\u20104332(96)00685\u2010X"},{"key":"e_1_2_8_32_1","doi-asserted-by":"publisher","DOI":"10.1007\/S13399\u2010019\u201000503\u20104"},{"key":"e_1_2_8_33_1","doi-asserted-by":"publisher","DOI":"10.1002\/Adma.201200164"},{"key":"e_1_2_8_34_1","doi-asserted-by":"publisher","DOI":"10.1007\/S11426\u2010016\u20100022\u2010Y"},{"key":"e_1_2_8_35_1","doi-asserted-by":"publisher","DOI":"10.1007\/S10971\u2010018\u20104820\u2010X"},{"key":"e_1_2_8_36_1","doi-asserted-by":"publisher","DOI":"10.1021\/Cm5003669"},{"key":"e_1_2_8_37_1","doi-asserted-by":"publisher","DOI":"10.1021\/Nn300760g"},{"key":"e_1_2_8_38_1","doi-asserted-by":"publisher","DOI":"10.1016\/J.Mseb.2020.114955"},{"key":"e_1_2_8_39_1","doi-asserted-by":"publisher","DOI":"10.1002\/Adfm.202210102"},{"key":"e_1_2_8_40_1","doi-asserted-by":"publisher","DOI":"10.1021\/Acsami.4c13645"},{"key":"e_1_2_8_41_1","doi-asserted-by":"publisher","DOI":"10.1007\/S40820\u2010021\u201000718\u2010Z"},{"key":"e_1_2_8_42_1","doi-asserted-by":"publisher","DOI":"10.1007\/S10973\u2010019\u201009213\u20105"},{"key":"e_1_2_8_43_1","doi-asserted-by":"publisher","DOI":"10.1007\/S12209\u2010019\u201000225\u20108"},{"key":"e_1_2_8_44_1","doi-asserted-by":"publisher","DOI":"10.1016\/J.Cej.2025.163281"},{"key":"e_1_2_8_45_1","doi-asserted-by":"publisher","DOI":"10.1002\/Adom.202302682"},{"key":"e_1_2_8_46_1","doi-asserted-by":"publisher","DOI":"10.1002\/Adfm.202414178"},{"key":"e_1_2_8_47_1","doi-asserted-by":"publisher","DOI":"10.1039\/D4ta04110k"},{"key":"e_1_2_8_48_1","doi-asserted-by":"publisher","DOI":"10.1016\/J.Mtphys.2021.100369"},{"key":"e_1_2_8_49_1","doi-asserted-by":"publisher","DOI":"10.1021\/Acs.Inorgchem.4c01519"},{"key":"e_1_2_8_50_1","doi-asserted-by":"publisher","DOI":"10.1021\/Acsami.5c01735"},{"key":"e_1_2_8_51_1","doi-asserted-by":"publisher","DOI":"10.1016\/J.Colsurfa.2024.134087"}],"container-title":["Advanced 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