本文關(guān)鍵詞： 藍(lán)光材料 環(huán)三磷腈 蒽 Suzuki反應(yīng) 星狀結(jié)構(gòu)　出處：《北京理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：有機(jī)發(fā)光二極管(OLED)具有啟動電壓低、高亮度、寬視覺、響應(yīng)快速以及自發(fā)光等特點(diǎn)， OLED的研究引起了研究者的高度關(guān)注。 為了實(shí)現(xiàn)全彩顯示，，OLED發(fā)光層中紅、綠、藍(lán)三基色的有機(jī)發(fā)光材料的性能需要同步。然而，由于藍(lán)光的寬帶隙特性，藍(lán)色有機(jī)發(fā)光材料相對于紅色和綠色有機(jī)發(fā)光材料在壽命、效率和光譜純度方面的差距較大。 本文針對有機(jī)藍(lán)色發(fā)光材料所面臨的壽命、發(fā)光效率和光譜純度方面的不足，設(shè)計(jì)了一種新型有機(jī)藍(lán)色發(fā)光材料——以三聚磷腈為核、蒽為發(fā)光基團(tuán)的星形高分子。將環(huán)磷腈球狀空間結(jié)構(gòu)、熱穩(wěn)定性等特點(diǎn)與蒽的高藍(lán)光純度和效率結(jié)合起來，來實(shí)現(xiàn)所設(shè)計(jì)的新型有機(jī)藍(lán)光材料在穩(wěn)定性、藍(lán)光的效率和純度方面協(xié)同。 設(shè)計(jì)了三條合成路線，并進(jìn)行了實(shí)驗(yàn)驗(yàn)證。結(jié)果顯示，我們設(shè)計(jì)的采用蒽硼酸進(jìn)行Suzuki反應(yīng)、逐步合成的路線具有可行性。 蒽硼酸是重要的中間體，因此在實(shí)驗(yàn)過程中對蒽硼酸的合成進(jìn)行了合成工藝的優(yōu)化，包括反應(yīng)物的配比和后處理重結(jié)晶試劑的選擇。研究結(jié)果顯示蒽硼酸合成原料的最佳配比為正丁基鋰：9-溴蒽：硼酸三異丙酯=1.2:1:1.5。后處理采用四氯化碳試劑進(jìn)行重結(jié)晶，實(shí)際產(chǎn)率78%。 對Suzuki反應(yīng)的催化體系進(jìn)行了優(yōu)化，最終優(yōu)化的條件為：使用四三苯基磷鈀作催化劑，通過改變加料順序來嚴(yán)格控制無氧的條件，使用甲醇重結(jié)晶的后處理方式來提高產(chǎn)率，實(shí)際產(chǎn)率為52%。 對目標(biāo)化合物進(jìn)行了初步的性能測試，包括紫外吸收光譜、熒光發(fā)射光譜。
[Abstract]:Organic light emitting diode ( OLED ) has the characteristics of low starting voltage , high brightness , wide vision , fast response and self - emission , and the research of OLED has attracted the attention of researchers . However , due to the wide band gap characteristics of blue light , the gap between the blue organic light emitting material and the red and green organic light emitting materials in terms of life , efficiency and spectral purity is large . In this paper , we designed a novel organic blue luminescent material , which uses tripolyphosphazenes as the core and anthracene as the luminescent group , and combines the characteristics of the spherical space structure and the thermal stability of the cyclophosphazenes with the high blue purity and the efficiency of anthracene to realize the cooperation of the novel organic blue material in the aspects of stability , blue light efficiency and purity . Three synthetic routes were designed and verified by experiments . The results showed that the route of stepwise synthesis was feasible by the Suzuki reaction of anthracene boronic acid . Anthracene boric acid is an important intermediate . Therefore , the synthesis of anthracene boronic acid is optimized during the experiment , including the ratio of reactants and the choice of post - treatment recrystallization reagents . The results show that the optimal mixture ratio of the raw materials of anthracene boronic acid is n - butyl lithium : 9 - bromoanthracene : triisopropyl borate = 1.2 : 1 : 1.5 . The post - treatment uses carbon tetrachloride reagent to recrystallize , the actual yield is 78 % . The catalytic system of Suzuki reaction was optimized . The optimized conditions were as follows : using tetratriphenylphosphonium palladium as catalyst , strictly controlling the conditions of oxygen - free conditions by changing the feeding sequence , using the post - treatment method of methanol recrystallization to improve the yield and the actual yield of 52 % . The target compound was subjected to a preliminary performance test , including UV absorption spectrum , fluorescence emission spectrum .

【學(xué)位授予單位】：北京理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TN383.1

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 李恒;任天輝;鐘慶華;鄭飛t

本文編號：1548143