{"doi":"10.1002/adma.202506957","title":"Bright Chromium‐Sensitized Lanthanide NIR‐II Mechanoluminescence in a Piezoelectric Oxide","abstract":"<jats:title>Abstract</jats:title>\n                  <jats:p>\n                    Near‐infrared (NIR) luminescent materials are critical components of high‐performance optical devices for frontier applications in anti‐counterfeiting, non‐destructive analysis, and deep‐tissue imaging. In this work, a bright Cr\n                    <jats:sup>3+</jats:sup>\n                    ‐sensitized lanthanide NIR‐II mechanoluminescence (ML) is developed in piezoelectric β‐Ga\n                    <jats:sub>2</jats:sub>\n                    O\n                    <jats:sub>3</jats:sub>\n                    . Specifically, a nearly complete energy transfer (ET) from highly doped Cr\n                    <jats:sup>3+</jats:sup>\n                    ions to Yb\n                    <jats:sup>3+</jats:sup>\n                    and Er\n                    <jats:sup>3+</jats:sup>\n                    acceptors is observed, resulting in pronounced ML at 1002 and 1542 nm. The NIR‐II luminescence intensity is further improved by cation alloying due to the promotion of octahedral distortion, culminating in 5.9‐ and 3.0‐fold stronger ML emissions compared to the well‐established CaZnOS:Yb\n                    <jats:sup>3+</jats:sup>\n                    and CaZnOS:Er\n                    <jats:sup>3+</jats:sup>\n                    , respectively. Furthermore, mechanistic investigations revealed that the ML behavior with high dopant concentration is enabled by strain‐induced piezoelectric potential without the involvement of trapping states, thus exhibiting exceptional cycling stability. Finally, an innovative multi‐level encryption framework is established for information protection with wavelength‐selective readout capabilities by optical or mechanical excitation.\n                  </jats:p>","journal":"Advanced Materials","year":2025,"id":672998,"datarank":0.4636563680037475,"base_score":3.091042453358316,"endowment":3.091042453358316,"self_citation_contribution":0.4636563680037475,"citation_network_contribution":0.0,"self_endowment_contribution":0.4636563680037475,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":21,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":1019571,"name":"Yang Guo","orcid":"0000-0002-8512-7638","position":1,"is_corresponding":false},{"id":316198,"name":"Zhen Song","orcid":null,"position":2,"is_corresponding":false},{"id":1748131,"name":"Dengfeng Peng","orcid":"0000-0002-9714-2317","position":3,"is_corresponding":false},{"id":1752995,"name":"Quanlin Liu","orcid":"0000-0003-3533-7140","position":4,"is_corresponding":false},{"id":869031,"name":"Feng Wang","orcid":"0000-0001-9471-4386","position":5,"is_corresponding":false},{"id":1758389,"name":"Shengqiang Liu","orcid":null,"position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"resolved":true,"title":"Bright Chromium‐Sensitized Lanthanide NIR‐II Mechanoluminescence in a Piezoelectric Oxide","abstract":"<jats:title>Abstract</jats:title>\n                  <jats:p>\n                    Near‐infrared (NIR) luminescent materials are critical components of high‐performance optical devices for frontier applications in anti‐counterfeiting, non‐destructive analysis, and deep‐tissue imaging. In this work, a bright Cr\n                    <jats:sup>3+</jats:sup>\n                    ‐sensitized lanthanide NIR‐II mechanoluminescence (ML) is developed in piezoelectric β‐Ga\n                    <jats:sub>2</jats:sub>\n                    O\n                    <jats:sub>3</jats:sub>\n                    . Specifically, a nearly complete energy transfer (ET) from highly doped Cr\n                    <jats:sup>3+</jats:sup>\n                    ions to Yb\n                    <jats:sup>3+</jats:sup>\n                    and Er\n                    <jats:sup>3+</jats:sup>\n                    acceptors is observed, resulting in pronounced ML at 1002 and 1542 nm. The NIR‐II luminescence intensity is further improved by cation alloying due to the promotion of octahedral distortion, culminating in 5.9‐ and 3.0‐fold stronger ML emissions compared to the well‐established CaZnOS:Yb\n                    <jats:sup>3+</jats:sup>\n                    and CaZnOS:Er\n                    <jats:sup>3+</jats:sup>\n                    , respectively. Furthermore, mechanistic investigations revealed that the ML behavior with high dopant concentration is enabled by strain‐induced piezoelectric potential without the involvement of trapping states, thus exhibiting exceptional cycling stability. Finally, an innovative multi‐level encryption framework is established for information protection with wavelength‐selective readout capabilities by optical or mechanical excitation.\n                  </jats:p>","is_dataset_classified":null,"base_score":2.9444389791664403,"endowment":2.9444389791664403,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"40801223","pmcid":null,"openalex_id":"https://openalex.org/W4413112286","authors":[],"funders":[{"funder_name":"National Natural Science Foundation of China","grant_id":"52372134","title":null},{"funder_name":"National Natural Science Foundation of China","grant_id":"62275170","title":null},{"funder_name":"Research Grants Council, University Grants Committee","grant_id":"11211922","title":null},{"funder_name":"Key-Area Research and Development Program of Guangdong Province","grant_id":"2024B0101080001","title":null},{"funder_name":"Guangdong Provincial Science Fund for Distinguished Young Scholars","grant_id":"2022B1515020054","title":null},{"funder_name":"Shenzhen Fundamental Research Project","grant_id":"JCYJ20240813141624033","title":null},{"funder_name":"Scientific Research Foundation as Phase II construction of high-level University 2035 plan of Shenzhen University","grant_id":"0000050101","title":null},{"funder_name":"proof-of-concept project of Shenzhen University","grant_id":"000003011313","title":null},{"funder_name":"Medical-Engineering Interdisciplinary Research Foundation of Shenzhen University","grant_id":"2023YG031","title":null}],"total_grants":9,"fwci":4.6808,"citation_percentile":0.96164586,"influential_citations":0,"citation_trend":[{"year":2025,"count":2},{"year":2026,"count":16}],"oa_status":"hybrid","license":"cc-by","oa_locations":[{"url":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/adma.202506957","host_type":"journal"},{"url":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/adma.202506957","host_type":"publisher"},{"url":"https://advanced.onlinelibrary.wiley.com/doi/pdf/10.1002/adma.202506957","host_type":"publisher"},{"url":"https://advanced.onlinelibrary.wiley.com/doi/full-xml/10.1002/adma.202506957","host_type":"publisher"},{"url":"https://doi.org/10.1002/adma.202506957","host_type":"journal"},{"url":"https://pubmed.ncbi.nlm.nih.gov/40801223","host_type":"repository"},{"url":"https://hdl.handle.net/2031/89a7439a-9522-4798-990e-5701c69367bf","host_type":"repository"}],"fields_of_study":["Luminescence Properties of Advanced Materials","Luminescence and Fluorescent Materials","Nanoplatforms for cancer theranostics"],"mesh_terms":[],"keywords":["Mechanoluminescence","Materials science","Piezoelectricity","Lanthanide","Chromium","Chromium oxide","Oxide","Optoelectronics","Composite material","Metallurgy","Luminescence","Organic chemistry","Ion","NIR‐II","energy transfer","piezoelectric"],"sdg_mappings":[],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-08-16T12:01:54.852307Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}