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Nature!可打印超结构|协同显色|卷对卷制备

Nature!可打印超结构|协同显色|卷对卷制备
论文标题:可打印超组装实现协同显色
DOI:10.1038/s41586-026-10408-8
一句话摘要:研发卷对卷可打印超组装结构,耦合光子禁带与全反射效应,实现大面积、高稳定、多色调协同结构色。
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研究动机:痛点→创新思路
01
核心痛点
  1. 传统染料有毒、易褪色、不环保
  2. 人工结构色难以实现多尺度协同光学
  3. 微纳加工成本高、无法大面积量产
  4. 单一光学机制导致色彩单调、可调性差
创新思路
  1. 提出超组装(meta-assembly)新策略。
  2. 耦合纳米光子禁带(PBG)+微米全反射(TIR)
  3. 开发卷对卷增材纳米打印(R2R-ANP)
  4. 实现米级大面积、单像素定制协同显色。
1. 打印创制多尺度光学超材料。(a)多尺度超材料基元结构设计示意图;(b)基元结构在不同波长光作用下的场强分布;(c)打印创制超材料的制备流程和结构表征;(d)自主研发的卷对卷纳米集成打印装置示意图及打印结果
       
设计原理:机制→关键数据
02
1. 三层结构设计
  1. 纳米单元:PS纳米球(180–240 nm),六方密堆。
  2. 微米形貌:PDMS基凹面结构。
  3. 界面:纳米晶格+微凹面光学界面。
2. 双光学机制
  • 中心:PBG选择性反射,决定中心色相
  • 边缘:TIR多束干涉,决定边缘色相
  • 协同输出整体混合色
3. 制备关键参数
  • 油墨:甲酰胺基PS胶体墨,黏度3.84 mPa·s
  • 基底后退接触角:80–110°最优。
  • 产量:100%转化,超4000万单元/米级。
  • 跨度:纳米→宏观7个数量级
图 2 | 规模化元组装打印的原理
       
性能突破:数据→优势
03
1. 色彩调控能力
  • 纳米球直径:180→240 nm,中心色蓝→红连续调。
  • 微单元直径:14→26 μm,边缘色蓝→橙连续调。
  • 支持RGB混色,可打印全色域图案
2. 量产能力
  • 速度:卷对卷连续制造
  • 面积:1.2 m×0.4 m,含7×10¹³颗粒。
  • 分辨率:403225 DPI,单像素定制。
3. 超高稳定性
  • 光照:UV 24h不褪色(染料完全褪色)。
  • 温度:−18℃~240℃性能不变。
  • 耐溶剂:水/酸碱/乙醇/己烷浸泡24h稳定
  • 耐洗涤:洗衣机150分钟无衰减。
  • 力学:拉伸200%,弯折万次稳定。
       
光学机理:清晰分工
04
1. 中心显色:光子禁带(PBG)
  1. PS纳米球周期排列形成光子晶体
  2. 特定波长选择性反射
  3. 颜色由纳米球直径唯一决定。
2. 边缘显色:全反射干涉(TIR)
  1. 凹面界面将光局域束缚
  2. 多次反射产生光程差干涉
  3. 颜色由微凹面尺寸决定。
3. 协同效应
  • PBG与TIR场增强与模式竞争
  • 中心色角度不敏感
  • 边缘色角度可调
  • 单结构实现双模式、双色调
       
总结:突破、贡献与价值
05
一句话定位突破性
首次构建纳米–微米跨尺度超组装,将光子禁带与全反射光学协同,实现可打印、大面积、超稳定结构色。
核心贡献
  1. 提出超组装协同显色新原理,突破单一光学机制限制。
  2. 发明R2R卷对卷打印技术,实现米级结构色量产。
  3. 建立纳米尺寸+微米形貌双参数精准调色体系。
  4. 实现耐光/耐热/耐溶剂/耐洗/耐拉伸五高稳定。
应用价值
  1. 替代染料,用于环保印染、绿色显示、安全印刷
  2. 应用于智能可视化、信息加密、防伪标识
  3. 多尺度超材料、柔性光子器件提供量产新路线。
基本 文件 流程 错误 SQL 调试
  1. 请求信息 : 2026-04-28 19:14:15 HTTP/1.1 GET : https://www.yeyulingfeng.com/a/566077.html
  2. 运行时间 : 0.140495s [ 吞吐率:7.12req/s ] 内存消耗:4,715.32kb 文件加载:145
  3. 缓存信息 : 0 reads,0 writes
  4. 会话信息 : SESSION_ID=5e3126c98de9b5704f1e6b1b861280c4
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  1. CONNECT:[ UseTime:0.000677s ] mysql:host=127.0.0.1;port=3306;dbname=wenku;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000876s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000344s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000240s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000505s ]
  6. SELECT * FROM `set` [ RunTime:0.000216s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000601s ]
  8. SELECT * FROM `article` WHERE `id` = 566077 LIMIT 1 [ RunTime:0.011842s ]
  9. UPDATE `article` SET `lasttime` = 1777374855 WHERE `id` = 566077 [ RunTime:0.018844s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000889s ]
  11. SELECT * FROM `article` WHERE `id` < 566077 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001246s ]
  12. SELECT * FROM `article` WHERE `id` > 566077 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.002150s ]
  13. SELECT * FROM `article` WHERE `id` < 566077 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.002394s ]
  14. SELECT * FROM `article` WHERE `id` < 566077 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001842s ]
  15. SELECT * FROM `article` WHERE `id` < 566077 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001926s ]
0.144452s