Design,Synthesis And Performance Analysis Of Charge Transfer And Luminescent Organic Semiconductor Materials

Organic photoelectric semiconductor is an important part of organic functional materials,and an indispensable part in the preparation of organic light emitting transistors with high integration degree.Due to the existence of aggregation-caused quenching,the synthesis of high-mobility and high solid-state luminescent materials has always been a difficult problem in the field.Therefore,we want to design materials with good electrical and optical properties through the modification and regulation of multi-functional groups.What we want to do is finding the relationship between structure and material properties by means of material stacking mode,chemical structure and other factors.In this paper,two kinds of anthracene derivatives and one butylene derivative were designed,synthesized and tested for their mobility（μ）,and photoluminescence quantum yield（PLQY,Φ）.The relationship between its electrical and optical properties and the stacking mode and chemical structure of the material is also explored.The main content is as follows:（1）.Three new types of materials were synthesized from 2,6-diphenylanthracene by modification of n-hexyl,n-octyl and n-decyl(C₆-DPA,C₈-DPA,C₁₀-DPA).These materials have good solubility,mobility and PLQY at the same time.The highest mobility of C₆-DPA is 0.60 cm²?V^-1?s^-1,C₈-DPA is 0.28 cm²?V^-1?s^-1,C₁₀-DPA is 0.5Φ_6-DQA=65.8%.We can see from the test data that despite the structural change,the material still retains well electrical and optical properties which as we expect.（2）.Different 2,6-diquinoline anthracene（2-DQA,3-DQA,6-DQA）were synthesized by changing the reaction sites of quinoline.The electrical and optical properties of these materials were obtained by organic field electronic transistor fabrication and optical properties testing.The highest mobility of 2-DQA is 2.84 and analyzed the monocrystalline structures of three materials.We found that although the structure changed,the materials were all piled up in herringbone.Meanwhile,due to the change of nitrogen position,the hydrogen bond and other forces were affected,and the surface angles and other structures of different materials were all changed.In the future,more experiments will be conducted for analysis.This phenomenon leads to the difference of the photoelectric properties of anthracene derivatives with different quinoline reaction sites.This kind of anthracene derivative provides a model for us to explore the relationship between structure and performance.（3）.We prepared material 1,4-bis（6-quinoline）butylene（DQBD）by using luminescent material quinoline as the group,and obtained DQBD single crystal and DQBD-HCl single crystal by solution method.We analyzed the performance of DQBD in response to acid-stimulated fluorescence color,and carried out experiments on the spectral changes of DQBD under different potential of hydrogen potential of hydrogen by using buffer solution.It has been verified by experiments that DQBD is a potential reusable and accurate material for acid and base sensor preparation.At the same time,we found that DQBD-HCl single crystal met the basic conditions of topological chemical polymerization,and the topological chemical polymerization conditions were preliminarily explored,and the relevant research is still in progress.The exploration of topological chemical polymerization conditions is still in progress.