Power-based upconversion luminescence color regulation (PUCR) is especially suitable for developing dynamic luminescence anti-counterfeiting owing to its straightforward usage. However, it remains a challenge to achieve visually remarkable Ho-based PUCR. Herein, favorable PUCR behavior is achieved by codoping Yb and Ho into the LuMoO lattice. It has been demonstrated that the ultrashort lifetime of the Ho:I level and the anomalous three-photon nature of green emission are essential. The former causes high-purity red emission at low power, while the latter enables power-responsive tuning from red to green. Compared with ErMoO:4% Tm we recently reported that LuMoO:90% Yb/1% Ho, thanks to the high solubility of Yb ions, showed a ∼25-fold enhancement in emission intensity. This new material is potentially applicable in dynamic luminescence anti-counterfeiting.
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