Deviceization of high-performance and flexible Ag2Se films for electronic skin and servo rotation angle control

被引：25

作者：

Chen, Yue-Xing ^{[1
]}

Shi, Xiao-Lei ^{[2
,3
]}

Zhang, Jun-Ze ^{[1
]}

Nisar, Mohammad ^{[1
]}

Zha, Zhong-Zhao ^{[1
]}

Zhong, Zi-Nan ^{[1
]}

Li, Fu ^{[1
]}

Liang, Guang-Xing ^{[1
]}

Luo, Jing-Ting ^{[1
]}

Li, Meng ^{[2
,3
]}

Cao, Tianyi ^{[2
,3
]}

Liu, Wei-Di ^{[2
,3
]}

Xu, Dong-Yan ^{[4
]}

Zheng, Zhuang-Hao ^{[1
]}

Chen, Zhi-Gang ^{[2
,3
]}

机构：

[1] Shenzhen Univ, Minist Educ & Guangdong Prov, Coll Phys & Optoelect Engn, Shenzhen Key Lab Adv Thin Films & Applicat,Key La, Shenzhen 518060, Guangdong, Peoples R China

[2] Queensland Univ Technol, Sch Chem & Phys, ARC Res Hub Zeroemiss Power Generat Carbon Neutra, Brisbane, Qld 4000, Australia

[3] Queensland Univ Technol, Ctr Mat Sci, Brisbane, Qld 4000, Australia

[4] Chinese Univ Hong Kong, Dept Mech & Automat Engn, Hong Kong, Peoples R China

来源：

NATURE COMMUNICATIONS | 2024年 / 15卷 / 01期

基金：

澳大利亚研究理事会; 中国国家自然科学基金;

关键词：

THERMOELECTRIC-MATERIALS; COMPOSITE;

D O I：

10.1038/s41467-024-52680-0

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：

Ag2Se shows significant potential for near-room-temperature thermoelectric applications, but its performance and device design are still evolving. In this work, we design a novel flexible Ag2Se thin-film-based thermoelectric device with optimized electrode materials and structure, achieving a high output power density of over 65 W m-2 and a normalized power density up to 3.68 mu W cm-2 K-2 at a temperature difference of 42 K. By fine-tuning vapor selenization time, we strengthen the (013) orientation and carrier mobility of Ag2Se films, reducing excessive Ag interstitials and achieving a power factor of over 29 mu W cm-1 K-2 at 393 K. A protective layer boosts flexibility of the thin film, retaining 90% performance after 1000 bends at 60 degrees. Coupled with p-type Sb2Te3 thin films and rational simulations, the device shows rapid human motion response and precise servo motor control, highlighting the potential of high-performance Ag2Se thin films in advanced applications.

引用

页数：13

共 79 条

[21] Substrate-Free Thermoelectric 25 ?m-Thick Ag2Se Films with High Flexibility and In-Plane zT of 0.5 at Room Temperature [J].