Stamp‐Like Energy Harvester and Programmable Information Encrypted Display Based on Fully Printable Thermoelectric Devices

• DOI: 10.1002/adma.202207723
• Publication Date: 2022-11-29T13:29:59Z
• Authors: Xingzhong Zhang; Yue Hou; Yang Yang; Ziyu Wang; Xiaosa Liang; Qingqing He; Yufeng Xu; Xiaolong Sun; Hongyu Ma; Jing Liang; Yong Liu; Wei Wu; Hongyu Yu; Haizhong Guo; Rui Xiong
• Keywords: Thermoelectric generator

Abstract Thermoelectric (TE) devices exhibit considerable application potential in Internet of Things and personal health monitoring systems. However, TE self‐powered are expensive their fabrication process is complex. Therefore, large‐scale preparation the remains challenging. In this work, simple screen‐printing technology used to fabricate a user‐friendly high‐performance paper‐based device, which can be both stamp‐like generators infrared displays. When as generator, an output power 940.8 µW achieved with temperature difference 40 K. The programmable pattern based on array display could realize encryption anti‐counterfeiting properties. Moreover, visual extraction algorithm develop mobile for processing decoding quick response code information. These findings offer exciting approach using TEGs applications such energy harvesting devices, optical encryption, anti‐counterfeiting, dynamic display.