A novel oligomer PPV derivative(OPPV)is reported,which is designed to contain the oxadiazole function segment in the main chain.Photoluminescence of the OPPV thin Him originates from aggregated states.In a double laye...A novel oligomer PPV derivative(OPPV)is reported,which is designed to contain the oxadiazole function segment in the main chain.Photoluminescence of the OPPV thin Him originates from aggregated states.In a double layer device consisting of poly phenylene vinylene(PPV)and OPPV,emission only from PPV layer was observed and the efficiency of the device was improved by about one order of magnitude compared with the single layer PPV device,this indicates the electron transport characteristic of OPPV.In the OPPV/Tb complex device^OPPV functions as the hole transport layer.A possible explanation is proposed.展开更多
A dye laser based on the soluble conjugated polymer,Poly[1,8-octanedioxy-2,6-dimethoxy-1,4-phenylene-1,2-ethenylene-1,4-phenylene-1,2-ethenylene-3,5-dimethoxy-1,4-phenylene],has been fabricated.The laser was pumped by...A dye laser based on the soluble conjugated polymer,Poly[1,8-octanedioxy-2,6-dimethoxy-1,4-phenylene-1,2-ethenylene-1,4-phenylene-1,2-ethenylene-3,5-dimethoxy-1,4-phenylene],has been fabricated.The laser was pumped by light pulses from the third harmonic radiation of an Nd:YAG laser.The lasing was observed in the blue wavelength region with the peak at 450 nm.The threshold energy is about 19μJ.The energy conversion yield of the laser is about 3.4%.The maximum peak power of the laser output pulse arrives at about 20kW.展开更多
基金Supported by the National Natural Science Foundation of China under Grant No.29992530.
文摘A novel oligomer PPV derivative(OPPV)is reported,which is designed to contain the oxadiazole function segment in the main chain.Photoluminescence of the OPPV thin Him originates from aggregated states.In a double layer device consisting of poly phenylene vinylene(PPV)and OPPV,emission only from PPV layer was observed and the efficiency of the device was improved by about one order of magnitude compared with the single layer PPV device,this indicates the electron transport characteristic of OPPV.In the OPPV/Tb complex device^OPPV functions as the hole transport layer.A possible explanation is proposed.
基金Supported by the National Natural Science Foundation of China under Grant No.79577018the Key Project of Chinese Academy of Sciences for the Ninth Five-Year Plan,and the Hundreds of Talents Program in Chinese Academy of Sciences.
文摘A dye laser based on the soluble conjugated polymer,Poly[1,8-octanedioxy-2,6-dimethoxy-1,4-phenylene-1,2-ethenylene-1,4-phenylene-1,2-ethenylene-3,5-dimethoxy-1,4-phenylene],has been fabricated.The laser was pumped by light pulses from the third harmonic radiation of an Nd:YAG laser.The lasing was observed in the blue wavelength region with the peak at 450 nm.The threshold energy is about 19μJ.The energy conversion yield of the laser is about 3.4%.The maximum peak power of the laser output pulse arrives at about 20kW.
