Premium
Printable Zn 2 GeO 4 Microwires Based Flexible Photodetectors with Tunable Photoresponses
Author(s) -
Chen Shuai,
Lou Zheng,
Chen Di,
Shen Guozhen
Publication year - 2018
Publication title -
advanced materials technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.184
H-Index - 42
ISSN - 2365-709X
DOI - 10.1002/admt.201800050
Subject(s) - photodetector , materials science , electronics , fabrication , optoelectronics , flexible electronics , wearable technology , transistor , electronic circuit , wearable computer , sensitivity (control systems) , computer science , nanotechnology , electrical engineering , electronic engineering , embedded system , voltage , medicine , alternative medicine , pathology , engineering
Printed electronics have drawn considerable attention due to their unique features and broad applications in future portable and wearable electronic devices. Herein, a near‐field direct‐printing method is used to realize a precise manipulation of microwires in the level of the individual wire for depositioning in a desired position and direction. High‐performance flexible photodetectors are fabricated on printed aligned Zn 2 GeO 4 microwires arrays, which show excellent photoresponse, stability, and uniformity toward UV light irradiation. Studies find that the photocurrents can be easily tuned by adjusting the number of printed microwires, enabling a potential application in printable imaging sensors. Patterned flexible photodetector arrays are also fabricated with a high sensitivity (≈4 × 10 3 ), precise manipulation, tunable photoresponses, and a good tolerance toward mechanical deformations. This work paves the way toward efficient fabrication of printable electronic device and facilitates their practical applications in future printed electronics, such as flexible and wearable functional devices, electronic textiles, transistors, and circuits.