Research Progress on Cellulose-based Room-temperature Phosphorescence Materials
Organic room temperature phosphorescence(RTP)materials showed enormous application prospects in the fields of optoelectronic devices,bioimaging,information encryption and anti-counterfeiting,and had received extensive attention in recent years.Converting cellulose into RTP materials could effectively solve a series of problems of traditional RTP materials,such as complex synthesis,high cost,difficulty in large-scale preparation,low processing performance,lack of renewability and environmental pollution,and provided a new way for the high-value utilization of cellulose at the same time.This paper reviewed the design ideas of cellulose-based RTP materials,the aggregation of heteroatoms or unsaturated groups in cellulose that could emit RTP by themselves,and their properties that could be enhanced by reasonable modification.Cellulose contains a large number of active hydroxyl groups,which can form hydrogen bond/covalent bond networks,and provides a rigid environment,which is served as a good matrix for the construction of organic RTP materials.Cellulose could be converted into carbon dots(CDs)with RTP properties as a carbon source.The cellulose-based RTP systems with special phosphorescent properties such as color-changing,stimulus-responsive,and circularly polarized phosphorescence were mainly introduced,and their intrinsic structure-activity relationships and potential applications were also discussed.Finally,the key challenges of cellulose-based RTP materials in terms of material properties,functionality and applications were summarized and the future development prospects were prospected.
万方数据
维普
