Dynamic multicolor emissions of multimodal phosphors by Mn2+ trace doping in self-activated CaGa4O7

Abstract The manipulation of excitation modes and resultant emission colors in luminescent materials holds pivotal importance for encrypting information in anti-counterfeiting applications. Despite considerable achievements in multimodal and multicolor luminescent materials, existing options generally suffer from static monocolor emission under fixed external stimulation, rendering them vulnerability to replication. Achieving dynamic multimodal luminescence within a single material presents a promising yet challenging solution. Here, we report the development of a phosphor exhibiting dynamic multicolor photoluminescence (PL) and photo-thermo-mechanically responsive multimodal emissions through the…

• TS
  Taishan Scholar Foundation of Shandong Province

  Award: tsqn202211057
• NN
  National Natural Science Foundation of China

  Awards: 12374387, 62375248, N_PolyU502/21, CRS_PolyU504/22, 11774189, 11774189, 12374387, and U22A20135, U22A20135
• NS
  Natural Science Foundation of Guangdong Province

  Award: 2023A1515012219
• HK
  Hong Kong Polytechnic University

  Award: 1-ZE2V
• CS
  China Scholarship Council
• NS
  Natural Science Foundation of Shandong Province

  Award: ZR2023MA075
• FR
  Fundamental Research Funds for the Central Universities

  Awards: 209202141002, 202364006