The demand for multidimensional stimulus sensing devices that can be used for the real-time monitoring of the equipment status in complex working environments has led to investigations on multifunctional optoelectroni...The demand for multidimensional stimulus sensing devices that can be used for the real-time monitoring of the equipment status in complex working environments has led to investigations on multifunctional optoelectronic materials.Nevertheless,the exploitation of all-in-one materials with multimode and multicolor luminescence capacities is still immature.Given the abundant transitions in lanthanide ions and the stress-responsive ability of piezoelectric crystals,multi-activator-doped piezoelectric materials are promising candidates for multifunctional detection based on luminescence characteristics.Herein,we report a novel multidimensional stimulus-sensitive material constructed via combining dual luminescence centers(Bi^(3+)/Er^(3+))with piezoelectric LiTaO_(3),thus realizing opto-mechano-thermo-responsive luminescence in a single material.Particularly the photoluminescence is allochroic(cyangreen-yellow)under diverse excitation sources(ultraviolet-blue-near infrared radiation).Its mechanoluminescence performance shows a linear relation with the applied load,allowing its application in stress sensing.In addition,the thermally coupled levels of Er^(3+)dopants endow the LiTaO_(3)material with temperature sensing capacity relying on the fluorescence intensity ratio.These findings provide a new method for designing optical function materials and integrated optoelectronic devices toward radiative,stress,and temperature sensing applications.展开更多
基金supported by the National Natural Science Foundation of China(Grant No.51572195)the Shanghai Sailing Program(20YF1456300).
文摘The demand for multidimensional stimulus sensing devices that can be used for the real-time monitoring of the equipment status in complex working environments has led to investigations on multifunctional optoelectronic materials.Nevertheless,the exploitation of all-in-one materials with multimode and multicolor luminescence capacities is still immature.Given the abundant transitions in lanthanide ions and the stress-responsive ability of piezoelectric crystals,multi-activator-doped piezoelectric materials are promising candidates for multifunctional detection based on luminescence characteristics.Herein,we report a novel multidimensional stimulus-sensitive material constructed via combining dual luminescence centers(Bi^(3+)/Er^(3+))with piezoelectric LiTaO_(3),thus realizing opto-mechano-thermo-responsive luminescence in a single material.Particularly the photoluminescence is allochroic(cyangreen-yellow)under diverse excitation sources(ultraviolet-blue-near infrared radiation).Its mechanoluminescence performance shows a linear relation with the applied load,allowing its application in stress sensing.In addition,the thermally coupled levels of Er^(3+)dopants endow the LiTaO_(3)material with temperature sensing capacity relying on the fluorescence intensity ratio.These findings provide a new method for designing optical function materials and integrated optoelectronic devices toward radiative,stress,and temperature sensing applications.
