当前位置: X-MOL 学术ChemistrySelect › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Synthesis and Luminescence Properties of a Novel Eu3+‐Containing Polysiloxane Copolymer
ChemistrySelect ( IF 1.9 ) Pub Date : 2018-06-01 , DOI: 10.1002/slct.201800395
Dongxin Li 1 , Jing Jia 1 , Bin Wang 1 , Husheng Jia 1 , Aiqin Zhang 1, 2 , Xuguang Liu 1 , Qianqian Shen 1 , Bingshe Xu 1
Affiliation  

Through pre‐coordination and subsequent polymerization from vinyl‐functionalized complex monomer with polysiloxane prepolymer (synthesized by vinyltrimethoxysilane and diphenylsilanediol), a novel anti‐ultraviolet Eu3+‐containing polysiloxane copolymer was obtained. FT‐IR spectra and UV/Visible absorption spectra prove the structure of the copolymer. TG‐DTG analyses indicate the copolymer keeps stable up to 321°C. When excited at 365 nm, the copolymer exhibits a stronger red emission at 612 nm. And the CIE coordinates (x=0.648, y=0.336) are very close to the National Television Standard Committee standard. Further, the red LEDs fabricated with the copolymer on 365 nm‐emitting chips display superior luminance (52110 cd/m2). Finally, 30‐day UV aging test only shows luminance loss of 6% and power efficiency loss of 7.3%, so the UV‐aging resistance of the copolymer is realized. All the results indicate that the Eu3+‐containing organosilicon copolymer is a promising anti‐ultraviolet red candidate.

中文翻译:

新型含Eu3 +的聚硅氧烷共聚物的合成与发光性能

通过乙烯基配位的复合单体与聚硅氧烷预聚物(由乙烯基三甲氧基硅烷和二苯基硅烷二醇合成)的预配位和随后的聚合反应,获得了一种新型的抗紫外线的含Eu 3+的聚硅氧烷共聚物。FT-IR光谱和UV /可见吸收光谱证明了共聚物的结构。TG-DTG分析表明,该共聚物在高达321°C的温度下保持稳定。当在365 nm激发时,该共聚物在612 nm处显示出更强的红色发射。CIE坐标(x = 0.648,y = 0.336)非常接近国家电视标准委员会的标准。此外,用该共聚物在365 nm发射芯片上制造的红色LED表现出卓越的亮度(52110 cd / m 2)。最后,经过30天的UV老化测试仅显示出6%的亮度损失和7.3%的功率效率损失,因此可实现共聚物的UV耐老化性。所有结果表明,含Eu 3+的有机硅共聚物是一种很有前途的抗紫外线红候选物。
更新日期:2018-06-01
down
wechat
bug