Designing the Iridescences of Biopolymers by Assembly of Photonic Crystal Superlattices,Advanced Optical Materials

当前位置： X-MOL 学术 › Adv. Opt. Mater. › 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.)

Designing the Iridescences of Biopolymers by Assembly of Photonic Crystal Superlattices
Advanced Optical Materials ( IF 8.0 ) Pub Date : 2018-03-12 , DOI: 10.1002/adom.201800066
Yu Wang ₁ , Meng Li ₁ , Elena Colusso ₁ , Wenyi Li ₁ , Fiorenzo G. Omenetto _{1,

2,

3}

Affiliation

Structural color in naturally occurring systems is generally constituted by nanoscale lattices of biopolymers that generate beautiful iridescences through their regular structures, often interspersed with defects or period mismatch. Taking inspiration from both formats and materials found in Nature, a series of large‐scale, highly reflective biopolymer‐based photonic crystal superlattices constituted by stacking layers of 3D nanoscale lattices with different periodicity is presented. These silk photonic crystal superlattices (SPCSs) are fully composed of naturally derived structural proteins (silk fibroin) and exhibit brilliant structural color while being mechanically flexible. Multi‐stopbands over broad wavelength ranges or single‐stopbands with narrowband spectral responses can be readily realized and precisely controlled by manipulating the hierarchy of the lattice stacks or the repetition periods of the assembled colloidal monolayers. The unique ability to vary the silk protein conformation allows to vary the lattice and controllably “design” the iridescences of the SPCSs with water vapor adding versatility to this biopolymer‐based photonic structure.

中文翻译：

通过组装光子晶体超晶格设计生物聚合物的虹彩

天然存在的系统中的结构颜色通常由生物聚合物的纳米级晶格构成，这些纳米晶格通过其规则结构产生美丽的虹彩，并经常散布着缺陷或周期不匹配。从《自然》中的格式和材料中汲取灵感，提出了一系列大型，高反射率的基于生物聚合物的光子晶体超晶格，该超晶格由堆叠具有不同周期性的3D纳米级晶格层构成。这些丝光子晶体超晶格（SPCS）完全由天然衍生的结构蛋白（丝素蛋白）组成，在机械柔韧性的同时，展现出鲜艳的结构颜色。通过操纵晶格堆叠的层次结构或组装的胶体单层的重复周期，可以轻松实现并精确控制宽波长范围内的多阻带或具有窄带光谱响应的单阻带。改变丝蛋白构象的独特能力允许改变晶格，并通过水蒸气可控地“设计” SPCS的虹彩，从而为这种基于生物聚合物的光子结构增加了多功能性。

更新日期：2018-03-12

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11