当前位置: X-MOL 学术Macromol. Rapid Commun. › 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.)
Luminescent and Robust Perovskite–Silicone Elastomers Prepared by Light Induced Thiol–Ene Reaction
Macromolecular Rapid Communications ( IF 4.6 ) Pub Date : 2020-12-03 , DOI: 10.1002/marc.202000606
Mengdong Guo 1 , Yue Huang 1 , Jinfeng Cao 1 , Yunfan Xu 1 , Shilong Lu 1 , Shengyu Feng 1
Affiliation  

The preparation of a series of luminescent perovskite–silicone elastomer (PSE) composites by embedding inorganic lead halide perovskite nanocrystals (CsPbBr3 NCs) into networks constructed by trimethylolpropane tris(2‐mercaptoacetate) and sulfone‐containing silicone copolymers with vinyl side groups (PSMVS) is reported herein. The networks are obtained by an environmentally friendly thiol–ene cross‐linking reaction under 30 W household LED light. The conducted analysis shows that the prepared PSEs display strong green fluorescence due to encapsulation of CsPbBr3 NCs, which constitute a luminescent center in sulfone‐containing silicone networks. Using PSMVS as basic polymers instead of commercial polysiloxanes endows PSEs with enhanced mechanical strength and excellent luminescent stability at high temperatures. The PSEs show robust tensile stress and >650% elongation. Additionally, the construction of colorful ultraviolet light‐emitting diodes (UV‐LEDs) by an in situ cross‐linking process is described.

中文翻译:

光诱导的硫醇-烯反应制备的发光和鲁棒的钙钛矿-硅橡胶弹性体

通过将无机卤化物钙钛矿纳米晶体(CsPbBr 3 NCs)嵌入由三羟甲基丙烷三(2-巯基乙酸酯)和含砜的带有乙烯基侧基的聚硅氧烷共聚物(PSMVS )构成的网络中,制备一系列发光的钙钛矿-有机硅弹性体(PSE)复合材料)在此处报告。该网络是通过在30 W家用LED灯下进行的环保硫醇-烯交联反应获得的。进行的分析表明,所制备的PSE由于CsPbBr 3的包封而显示出强烈的绿色荧光。NCs,构成含砜有机硅网络中的发光中心。使用PSMVS作为基础聚合物代替市售的聚硅氧烷,可赋予PSE更高的机械强度和高温下优异的发光稳定性。PSE表现出强大的拉伸应力和> 650%的伸长率。此外,还描述了通过原位交联过程构造彩色紫外发光二极管(UV-LED)的过程。
更新日期:2020-12-03
down
wechat
bug