Single Pixel Black Phosphorus Photodetector for Near-Infrared Imaging

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

19 Scopus Citations
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Author(s)

  • Jinshui Miao
  • Bo Song
  • Zhihao Xu
  • Le Cai
  • Suoming Zhang
  • Chuan Wang

Detail(s)

Original languageEnglish
Article number1702082
Journal / PublicationSmall
Volume14
Issue number2
Online published22 Nov 2017
Publication statusPublished - 11 Jan 2018
Externally publishedYes

Abstract

Infrared imaging systems have wide range of military or civil applications and 2D nanomaterials have recently emerged as potential sensing materials that may outperform conventional ones such as HgCdTe, InGaAs, and InSb. As an example, 2D black phosphorus (BP) thin film has a thickness-dependent direct bandgap with low shot noise and noncryogenic operation for visible to mid-infrared photodetection. In this paper, the use of a single-pixel photodetector made with few-layer BP thin film for near-infrared imaging applications is demonstrated. The imaging is achieved by combining the photodetector with a digital micromirror device to encode and subsequently reconstruct the image based on compressive sensing algorithm. Stationary images of a near-infrared laser spot (λ = 830 nm) with up to 64 × 64 pixels are captured using this single-pixel BP camera with 2000 times of measurements, which is only half of the total number of pixels. The imaging platform demonstrated in this work circumvents the grand challenges of scalable BP material growth for photodetector array fabrication and shows the efficacy of utilizing the outstanding performance of BP photodetector for future high-speed infrared camera applications.

Research Area(s)

  • 2D semiconductors, black phosphorus, compressive sensing, near-infrared imaging, photodetectors

Citation Format(s)

Single Pixel Black Phosphorus Photodetector for Near-Infrared Imaging. / Miao, Jinshui; Song, Bo; Xu, Zhihao; Cai, Le; Zhang, Suoming; Dong, Lixin; Wang, Chuan.

In: Small, Vol. 14, No. 2, 1702082, 11.01.2018.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal