Dual-function perovskite light-emitting/sensing devices for optical interactive display

Songman Ju; Yangbin Zhu; Hailong Hu; Yang Liu; Zhongwei Xu; Jinping Zheng; Chaomin Mao; Yongshen Yu; Kaiyu Yang; Lihua Lin; Tailiang Guo; Fushan Li

doi:10.1038/s41377-022-01036-8

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Dual-function perovskite light-emitting/sensing devices for optical interactive display

Original Articles

- Dual-function perovskite light-emitting/sensing devices for optical interactive display
- Light: Science & Applications Vol. 11, Issue 12, Pages: 2952-2960(2022)
- Affiliations：
  
  1.Institute of Optoelectronic Technology, Fuzhou University, Fuzhou 350116, China
  2.Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350116, China
  3.School of Intelligent Manufacturing and Electronic Engineering, Wenzhou University of Technology, Wenzhou 325035, China
  4.The Straits Institute of Flexible Electronics (SIFE, Future Technologies), Fujian Normal University, Fuzhou 350117, China
- Author bio：
  
  Fushan Li (fsli@fzu.edu.cn)
- Funds：
- DOI：10.1038/s41377-022-01036-8
  CLC：
- Published：31 December 2022，
  
  Published Online：22 November 2022，
  
  Received：24 July 2022，
  
  Revised：01 November 2022，
  
  Accepted：09 November 2022
- Accepted：
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Ju, S. M. et al. Dual-function perovskite light-emitting/sensing devices for optical interactive display. Light: Science & Applications, 11, 2952-2960 (2022).
DOI：

Ju, S. M. et al. Dual-function perovskite light-emitting/sensing devices for optical interactive display. Light: Science & Applications, 11, 2952-2960 (2022). DOI： 10.1038/s41377-022-01036-8.

摘要

Abstract

Interactive display devices integrating multiple functions have become a development trend of display technology.The excellent luminescence properties of perovskite quantum dots (PQDs) make it an ideal luminescent material forthe next generation of wide-color gamut displays. Here we design and fabricate dual-function light-sensing/displayinglight-emitting devices based on PQDs. The devices can display information as an output port

and simultaneouslysense outside light signals as an input port and modulate the display information in a non-contact mode. The dualfunctions were attributed to the device designs: (1) the hole transport layer in the devices also acts as the light-sensinglayer to absorb outside light signals; (2) the introduced hole trapping layer interface can trap holes originating fromthe light-sensing layer

and thus tune the charge transport properties and the light-emitting intensities. The sensingand display behavior of the device can be further modulated by light signals with different time and spaceinformation. This fusion of sensing and display functions has broad prospects in non-contact interactive screens andcommunication ports.

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