Application Of Hybrid Perylene Diimides In Detection And Luminescent Solar Concentrators

Perylene bisimides (PBIs) composed of π-π conjugated system has attract many academic attention due to their excellent properties since synthesis by Friedlander in1913. Based on PBIs, the main point of our work is as following:influence of substituents on assembly and spectrum has been researched after the POSS added the PBIs. And then a PA sensor has been designed. At last, a PBI derivate with a large range of absorption wavelength is used to luminescent solar concentrators. The achievements are as following:·1. Base on POSS substituted PBIs, a new sensor to PA has been designed with the help of the LiAlH4and AlCl3. The carbonyl groups of PBI is eliminated and a new electron-donating center is formed. The new molecule make the energy transfer possible due to the existing overlap of the spectrum with PA. High sensitivity and selectivity are reached because of the special structure of the molecule.We manage to designing the solid sensor because of its strong solid fluorescence.·2In order to know the influence of substituents of PBI, the two other molecules, DMPBI and DCPBI has been synthesized and characterized on their solubility, absorption and quantum efficiency of efficiency. Comparison of above properties is also made between two compounds in solution and films.·3As a solar material, Red305has been synthesized and used to fabricate luminescent solar concentrator (LSC) by soaking in the end of this article. Comparison is made for efficiency between LSCs containing the organic dye and rare earth dyes LSCs. The excellent properties of red305have been obtained and the relation between the efficiency of LSC and concentration of dyes has been investigated. Results will be helpful in application of LSCs.