Multiple logic gates system based on dual‐wavelength triggered enhancing upconversion luminescence of Gd2(MoO4)3:Yb3+/Er3+

Abstract

AbstractA complex UC logic system using 1470 and 1550 nm dual‐wavelength as triggering signals has been developed to implement multilevel logic operations. Gd2(MoO4)3:Yb3+/Er3+ upconversion luminescence material can achieve significantly emission enhancement upon simultaneous excitation of 1470 and 1550 nm dual‐wavelength due to the synergistic effect of two kinds of photons realizing better match with energy level. The influences of excitation power and low temperature on dual‐wavelength enhancement effect are also in‐depth researched. Multiple logic combination operations including two‐output (YES + OR, AND + XOR, AND + INHIBIT, YES + INHIBIT) and three‐output (AND + YES + OR) are developed in this Gd2(MoO4)3:Yb3+/Er3+ UC logic system by employing 1470 and 1550 nm excitation resources as input signals and detecting the change of relative intensity of green, red emission and red/green intensity ratio. It is notable that two outputs and three outputs signals in this UC emission system can simultaneously execute different logic operations, which could greatly enlarge the capacity of logic information base and enhance the ability of information processing. These results not only provide a good enlightenment for the design of complex logic systems but also are indispensable for development of various functional devices.