Mechanoluminescence (ML) is a classical optical phenomenon that is induced by mechanical stimulus, and it can be applied to stress sensors, imaging, self‐powered display/lighting and anti‐counterfeiting. However, the realization of determining the magnitude of stress in real time by the changes of colors for stress‐induced display/lighting has been fundamentally challenging. Herein, the superior manipulation of colors from blue to red continuously by pressure or concentration is achieved in Bi,Mn co‐activated CaZnOS for the first time. CaZnOS:Bi3+,0.1% Mn2+ exhibits the ML color from red, orange, white, and cyan with the pressure from 0 to 5000 N. Moreover, ML color manipulation from cyan to red light is also achieved with difference in Mn2+ concentration. It is of note that there is a reversible phase transition of CaZnOS according to in situ X‐ray diffraction and Raman spectra at high pressure. Moreover, the correlation between crystal structure and ML properties, as well as the ML mechanism are established and discussed in detail. In conclusion, the present results demonstrate the Bi,Mn co‐activated CaZnOS as a novel ML material achieving multi‐color manipulation with great potential applications in the fields of novel mechanically stress‐induced display, ultrasound monitoring, and particularly advanced anti‐counterfeiting technology.

When Ca2+ is substituted with Sr2+, the optical band gap of (Ca, Sr)ZnOS:Mn2+ becomes narrower and the trap depths becomes deeper, which leads to ML enhanced. The monitoring of ultrasonic intensity was achieved by using this ML material.

Mechanoluminescence materials that emit light under mechanical stimulation have attracted widespread attention in sensing, anti-counterfeiting and imaging applications. In this study, a series of novel Sr1-xBixZnSO (0.001≤x≤0.1) samples were synthesized by the method of high temperature solid-state reaction. It is worth noting that the distortion degree of SrO3S3 octahedron was increased with increasing Bi 3+ concentration, and the color manipulated Sr1-xBixZnSO which can emit different photoluminescence (blue to dark blue and finally red) and mechanoluminescence (orange to red) colors are obtained. Moreover, the deep traps can stably store and provide electronic 2 supplement to shallow traps released under mechanical stimulated. Therefore, devices made of SrZnSO: Bi 3+ phosphor and polydimethylsiloxane (PDMS) can be used as thermomechano-opto three-mode anti-counterfeiting. The ML intensity is linear to the external load, can be utilized for stress sensing or imaging.

Much attention has been paid to exploit novel mechanoluminescnece (ML) phosphors, however, there is few reports about how to improve contrast in imaging and applicability in practice. In this work,...