4.6 Article

A self-powered flexible-vision electronic skin based on piezophototronic GaN nanowires for rapid image recognition

Journal

JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 53, Issue 15, Pages -

Publisher

IOP PUBLISHING LTD
DOI: 10.1088/1361-6463/ab6b99

Keywords

self-powered; piezophototronic effect; GaN nanowire; electronic skin; rapid image recognition

Funding

  1. National Natural Science Foundation of China [11674048, 51872296]
  2. Open Fund of the State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-Sen University [OEMT-2018-KF-010, OEMT-2017-KF-02]
  3. Program for Shenyang Youth Science and Technology Innovation Talents [RC170269]

Ask authors/readers for more resources

A self-powered flexible-vision electronic skin for rapid image recognition has been fabricated from piezophototronic GaN nanowires. The basic structure of each photodetecting pixel consists of horizontally-aligned GaN nanowires crossing a cross-finger electrode, and 6 x 6 photodetecting pixels that form a patterned sensing matrix. The working mechanism is based on the piezophototronic effect, and the device can harvest a tiny amount of mechanical energy and directly output photodetecting signals without any external electrical power. The output piezoelectric voltage is significantly dependent on UV illumination, and the response is up to similar to 76 for 80 mu W cm(-2) light. The response and recovery times are very short. A practical application of the device for rapid image recognition has been simply demonstrated, and this shows the potential for realizing an artificial intelligent retina. This work can promote the development of wearable flexible electronics and expand the scope of self-powered nanosystems.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.6
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available