Micropatterning of the Ferroelectric Phase in a Poly(vinylidene difluoride) Film by Plasmonic Heating with Gold Nanocages.
Micropatterning of the Ferroelectric Phase in a Poly(vinylidene difluoride) Film by Plasmonic Heating with Gold Nanocages.
复制标题
DOI：
10.1002/anie.201605405
复制
发表时间：
2016-10-24
影响因子：
16.6
通讯作者：
Xia, Younan
中科院分区：
文献类型：
--
作者：
Li, Jianhua;Yang, Miaoxin;Sun, Xiaojun;Yang, Xuan;Xue, JiaJia;Zhu, Chunlei;Liu, Hong;Xia, Younan
具有图案化铁电结构域的聚合物薄膜具有广泛的应用前景，包括制造触觉传感器、红外探测器和非易失性存储器。在这里，我们报道了利用金纳米笼(AuNC)作为等离子体纳米结构，利用它们的光热效应在聚偏氟乙烯(PVDF)薄膜中诱导铁电-顺电相变。这项技术允许我们在短短几秒钟内产生铁电PVDF的图案化磁区。AuNCs的掺入显著提高了铁电薄膜在近红外辐射下的热释电响应。我们还展示了这种图案化铁电薄膜在近红外传感/成像中的应用。利用等离子体激元辅助的相变技术，在几秒钟内通过掺入非常小的(0.08%重量分数)铁电薄膜，在几秒钟内将铁电薄膜排列成排列的磁区。进入膜中的金纳米笼的数量。铁电域的图案化阵列可以用作红外传感/成像的离散像素。
Polymer thin films with patterned ferroelectric domains are attractive for a broad range of applications, including the fabrication of tactile sensors, infrared detectors, and non-volatile memories. Here we report the use of gold nanocages (AuNCs) as plasmonic nanostructures to induce ferroelectric-paraelectric phase transition in a poly(vinylidene fluoride) (PVDF) thin film by leveraging their photothermal effect. This technique allows us to generate patterned domains of ferroelectric PVDF within just a few seconds. The incorporation of AuNCs significantly enhanced the pyroelectric response of the ferroelectric film under near-infrared irradiation. We also demonstrated the use of such patterned ferroelectric films for near-infrared sensing/imaging. Plasmon-assisted phase transition was used to pattern a freestanding ferroelectric thin film into arrayed domains in a few seconds by incorporating a very small (0.08% by wt.) amount of Au nanocages into the film. The patterned array of ferroelectric domains could serve as discrete pixels for infrared sensing/imaging.
登录
查看更多内容
影响因子：
15
作者：
Moon, Geon Dae;Choi, Sung-Wook;Cai, Xin;Li, Weiyang;Cho, Eun Chul;Jeong, Unyong;Wang, Lihong V.;Xia, Younan
通讯作者：
Xia, Younan
影响因子：
11.9
作者：
Luo, Bingcheng;Wang, Xiaohui;Li, Longtu
通讯作者：
Li, Longtu
影响因子：
17.1
作者：
Liu, Yuanming;Weiss, Dirk N.;Li, Jiangyu
通讯作者：
Li, Jiangyu
影响因子：
27.8
作者：
Zabek, Daniel;Taylor, John;Bowen, Chris R.
通讯作者：
Bowen, Chris R.
影响因子：
17.1
作者：
Nguyen, Son C.;Zhang, Qiao;Alivisatos, A. Paul
通讯作者：
Alivisatos, A. Paul