Organic Room-Temperature Phosphorescent Materials: From Static to Dynamic

Abstract

Dynamic room-temperature phosphorescence (RTP) in organic materials is highly sensitive toward changes of external stimulus, representing the expansion of static RTP materials with fixed properties, and has gradually captured considerable attention. Different from the big breakthroughs in static organic RTP materials, dynamic organic RTP materials remain a clear improvement over luminescent mechanisms and molecular design rule. Therefore, we have reviewed the progress of organic RTP materials from static to dynamic phosphorescence and provide insight into the dynamic behaviors of RTP lifetime, color, intensity, and efficiency under different external stimuli, especially changes to the excitation source, such as irradiation time, intensity, and excitation wavelengths. Subsequently, we present some viewpoints on this promising field to strengthen the understanding of dynamic RTP characteristics. This Perspective may be beneficial for the future development of smart materials with dynamic RTP.