Rewritable color nanoprints in antimony trisulfide films

被引：110

作者：

Liu, Hailong ^{[1
]}

Dong, Weiling ^{[1
]}

Wang, Hao ^{[1
]}

Lu, Li ^{[1
]}

Ruan, Qifeng ^{[1
]}

Tan, You Sin ^{[1
]}

Simpson, Robert E. ^{[1
]}

Yang, Joel K. W. ^{[1
,2
]}

机构：

[1] Singapore Univ Technol & Design, 8 Somapah Rd, Singapore 487372, Singapore

[2] Innovis, Inst Mat Res & Engn IMRE, 2 Fusionopolis Way,08-03, Singapore 138634, Singapore

来源：

SCIENCE ADVANCES | 2020年 / 6卷 / 51期

基金：

新加坡国家研究基金会;

关键词：

HEAT;

D O I：

10.1126/sciadv.abb7171

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Materials that exhibit large and rapid switching of their optical properties in the visible spectrum hold the key to color-changing devices. Antimony trisulfide (Sb2S3) is a chalcogenide material that exhibits large refractive index changes of similar to 1 between crystalline and amorphous states. However, little is known about its ability to endure multiple switching cycles, its capacity for recording high-resolution patterns, nor the optical properties of the crystallized state. Unexpectedly, we show that crystalline Sb2S3 films that are just 20 nm thick can produce substantial birefringent phase retardation. We also report a high-speed rewritable patterning approach at sub-diffraction resolutions (>40,000 dpi) using 780-nm femtosecond laser pulses. Partial reamorphization is demonstrated and then used to write and erase multiple microscale color images with a wide range of colors over a similar to 120-nm band in the visible spectrum. These solid-state, rapid-switching, and ultrahigh-resolution color-changing devices could find applications in nonvolatile ultrathin displays.

引用

页数：8