Linearly Polarized Emission from Shear-Induced Nematic Phase Upconversion Nanorods.

Linearly Polarized Emission from Shear-Induced Nematic Phase Upconversion Nanorods.
复制标题

剪切诱导向列相上转换纳米棒的线性偏振发射。

DOI:
10.1021/acs.nanolett.0c00601
复制
发表时间:
2020-05
期刊:
影响因子:
10.8
通讯作者:
Liu Yan Jun
Liu Yan Jun
中科院分区:
材料科学1区
文献类型:
--
作者:
He Huilin;Liu Jianxun;Li Ke;Yin Zhen;Wang Jiawei;Luo Dan;Liu Yan Jun

文献摘要

参考文献

被引文献

相似文献

由于发射极周围的各向异性晶体局部对称性,镧系元素掺杂的颗粒表现出独特的偏振相关发光。精确控制粒子的取向对开发发光偏振及其潜在应用具有重要意义。在这里,我们展示了一个简单的聚丙烯辅助剪切驱动的方法,以获得大规模的取向有序的上转换纳米棒,显示出液晶相。通过使用单分散的胶体纳米棒作为纳米墨水,具有低纵横比的上转换纳米棒沿着剪切方向与晶体c轴沿着良好地对准。排列的UCNRs的序参量可以达到0.95。上转换纳米棒表现出很强的偏振相关发光,在657 nm和661 nm处的4F 9/2能级的高偏振度分别为0.47和0.59。利用这些介观排列良好的上转换纳米棒,其独特的偏振发射是潜在的有用的一些跨学科的应用,如偏振敏感的生物探针和防伪。
Lanthanide-doped particles exhibit unique polarization-dependent luminescence due to the anisotropic crystalline local symmetry surrounding the emitter. Precise control of the orientation of particles shows great significance of exploiting the luminescent polarization and their potential applications. Here, we demonstrated a facile polypropylene-aided shear-driven method to obtain large-scale orientationally ordered upconversion nanorods, showing a liquid crystalline nematic phase. Upconversion nanorods with low aspect ratios were well-aligned with the crystalline c-axis along the shearing direction by using the monodispersed colloid nanorods as the nanoink. The order parameter of aligned UCNRs can reach up to 0.95. The nematic upconversion nanorods demonstrated strong polarization-dependent luminescence with the high degrees of polarization of 4F9/2 level at 657 nm and 661 nm being 0.47 and 0.59, respectively. Taking advantage of these mesoscopic well-aligned upconversion nanorods, their peculiar polarized emissions are potentially useful for some interdisciplinary applications such as polarization-sensitive bioprobes and anti-counterfeiting.
DOI: 10.3390/ma11101833
发表时间: 2018-09-26
期刊: Materials (Basel, Switzerland)
影响因子: --
作者:
Liu J;He H;Xiao D;Yin S;Ji W;Jiang S;Luo D;Wang B;Liu Y
通讯作者: Liu Y
DOI: 10.1002/advs.201700609
发表时间: 2018-03
期刊: Advanced science (Weinheim, Baden-Wurttemberg, Germany)
影响因子: --
作者:
Gu B;Zhang Q
通讯作者: Zhang Q
DOI: 10.1021/jacs.8b03983
发表时间: 2018-08-01
影响因子: 15
作者:
Chaudan, Elodie;Kim, Jongwook;Gacoin, Thierry
通讯作者: Gacoin, Thierry
DOI: 10.1021/acs.nanolett.8b00396
发表时间: 2018-04
期刊: Nano letters
影响因子: 10.8
作者:
Shuo Shi;Ling-Dong Sun;Yingxian Xue;Hao Dong;Ke Wu;Shize Guo;Botao Wu;Chunhua Yan
通讯作者: Shuo Shi;Ling-Dong Sun;Yingxian Xue;Hao Dong;Ke Wu;Shize Guo;Botao Wu;Chunhua Yan
DOI: 10.1021/acsnano.5b07949
发表时间: 2016-06-01
期刊: ACS NANO
影响因子: 17.1
作者:
Cunningham, Patrick D.;Souza, Joao B., Jr.;Talapin, Dmitri V.
通讯作者: Talapin, Dmitri V.