Interactive Color‐Changing Electronic Skin Based on Flexible and Piezoelectrically Tunable Quantum Dots Light‐Emitting Diodes. Issue 7 (20th February 2020)

• Record Type: Journal Article
• Authors: Hu, Han‐Wen; Shen, Tien‐Lin; Lin, Tai‐Yuan; Chen, Yang‐Fang
• Is Part Of: Advanced optical materials. Volume 8:Issue 7(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-02-20
• Subjects: electronic skin -- flexible light emitting diodes -- user‐interactive devices; Optical materials -- Periodicals; Photonics -- Periodicals; 620.11295
• DOI: 10.1002/adom.201901715
• Languages: English
• ISSNs: 2195-1071

Abstract

Abstract: Inspired by animals in nature, such as chameleons, frogs, and cephalopods, the remarkable capability of changing one's skin color has drawn considerable interests due to its wide applications in camouflage, warning methods, and visual communications. Today, research on electronic skins (e‐skins), imitating biological skin by quantifying external stimuli, to mimic this unique color‐changing function has been achieved based on the integration of a matrix of displays and sensors; however, integrated systems possess bulky and complicated fabrication processes. Here, the first attempt to demonstrate a single user‐interactive e‐skin device with color‐changing response upon applied external strain is made, while using a cost‐effective and space‐saving method, which promises to open new possibilities for the development of next‐generation e‐skins with visual response. Abstract : User‐interactive e‐skin devices with color‐changing response upon applied external strain, based on a single device are demonstrated. These unique features are accomplished by the mixed quantum dots as the emission layer of the quantum dots light emitting diode and the implementation of a piezoelectric thin film. The fabrication process is cost‐effective and space‐saving compared with previous reports of a discrete displays and sensors array.