Photosensitive and Flexible Organic Field-Effect Transistors Based on Interface Trapping Effect and Their Application in 2D Imaging Array

Yingli Chu; Xiaohan Wu; Jingjing Lu; Dapeng Liu; Juan Du; Guoqian Zhang; Jia Huang

doi:10.1002/advs.201500435

Photosensitive and Flexible Organic Field-Effect Transistors Based on Interface Trapping Effect and Their Application in 2D Imaging Array

Adv Sci (Weinh). 2016 Feb 26;3(8):1500435. doi: 10.1002/advs.201500435. eCollection 2016 Aug.

Authors

Yingli Chu¹, Xiaohan Wu¹, Jingjing Lu¹, Dapeng Liu¹, Juan Du¹, Guoqian Zhang¹, Jia Huang¹

Affiliation

¹ School of Materials Science and Engineering Tongji University Shanghai 201804 P. R. China.

Abstract

Flexible organic phototransistors are fabricated using polylactide (PLA), a polar bio-material, as the dielectric material. The charge trapping effect induced by the polar groups of the PLA layer leads to a photosensitivity close to ≈10⁴. The excellent performance of this new device design is further demonstrated by incorporating the photo-transistors into a sensor array to successfully image a star pattern.

Keywords: flexible electronics; interface trapping effect; organic field‐effect transistors; photosensitive.