通过主客体能量传递机制的青绿色发光LED的制备及性能  

Preparation and properties of turquoise luminescent LED via host-guest energy transfer mechanism

作　　者：龙顺 马佳俊[1,2] 杨军校[1,2] Long Shun;Ma Jiajun;Yang Junxiao(State Key Laboratory of Environmental Friendly Energy Materials,Southwest University of Science and Technology,Mianyang 621010;School of Materials and Chemistry,Southwest University of Science and Technology,Mianyang 621010)

机构地区：[1]环境友好能源材料国家重点实验室,西南科技大学,绵阳621010 [2]西南科技大学材料与化学学院,绵阳621010

出　　处：《化工新型材料》2024年第9期129-135,共7页New Chemical Materials

基　　金：四川省自然科学基金(2022NSFSC0032);环境友好能源材料国家重点实验室开发基金(21fksy03,20fkdy03)。

摘　　要：绿光作为三基色之一,具有不可忽视的作用。通过Suzuki偶联反应合成了芘基多孔有机聚合物(Py-POP),采用傅里叶变换红外光谱仪、荧光分光光度计、N 2吸附-脱附实验、X射线衍射仪和扫描电子显微镜对其化学结构、晶体结构和微观形貌进行了表征。通过Hyperchem软件对Py-POP空间结构进行了模拟,模拟结果表明二乙烯基硅氧烷-双苯并环丁烯(DVSBCB)单体能够进入Py-POP孔道,先通过热开环反应得到预聚物Py-POP/pre-p-DVSBCB(pre-p-DVSBCB为二乙烯基硅氧烷-双苯并环丁烯预聚物),再进一步反应得到芘基交联固化物Py-POP/p-DVSBCB(p-DVSBCB为pre-p-DVSBCB的交联固化物),Py-POP/p-DVSBCB能够作为封装层和荧光层。由于pre-p-DVSBCB和p-DVSBCB具有紫外吸收-蓝光发射的特性,因此二者作为主体材料(Host)能够通过能量转移过程将蓝光转移到Py-POP客体材料(Ghost)。发光二极管(LED)光源性能测试结果表明,Host-Ghost能量传递体系能够减少蓝光,同时能够得到具有良好青绿色发光行为的LED光源。Green light,as one of the three primary colors,plays an undeniable role.Pyrene-based porous organic polymers(Py-POP)were synthesized by Suzuki coupling reaction.Their chemical structure,crystal structure and microscopic morphology were characterized by Fourier transform infrared spectrometer,fluorescence spectrophotometer,N 2 adsorption-desorption experiment,X-ray diffraction and scanning electron microscopy.The spatial structure of Py-POP was simulated using Hyperchem software,and the simulation results indicated that the divinylsiloxane dibenzocyclobutene(DVSBCB)monomer could enter the Py-POP pore channels,and the prepolymers Py-POP/pre-p-DVSBCB(pre-p-DVSBCB being a divinylsiloxane bisbenzocyclobutene prepolymer)were obtained through thermal ring-opening reaction,followed by further reaction to obtain pyrene-based crosslinked cured product Py-POP/p-DVSBCB(p-DVSBCB being the cross-linked cured product of pre-p-DVSBCB).The Py-POP/p-DVSBCB could serve as the packaging layer and fluorescent layer.Due to the UV absorption-blue light emission characteristics of pre-p-DVSBBCB and p-DVSBCB,they could serve as host materials and transfer blue light to Py-POP guest materials through energy transfer processes.The performance test of LED light sources indicated that the host-guest energy transfer system could effectively reduce blue light and obtain LED light sources with good turquoise emission behavior.

关 键 词：多孔有机聚合物 苯并环丁烯 能量传递 LED 

分 类 号：TQ152[化学工程—电化学工业] TM53[电气工程—电器]