A butterfly-inspired hierarchical light-trapping structure towards a high-performance polarization-sensitive perovskite photodetector

Yan Zhan, Yang Wang, Qunfeng Cheng, Chang Li, Kaixuan Li, Huizeng Li, Jingsong Peng, Bo Lu, Yu Wang, Yanlin Song, Lei Jiang, Mingzhu Li

Research output: Contribution to journalArticleResearchpeer-review

11 Citations (Scopus)

Abstract

Extensive applications for photodetectors have led to demand for high-responsivity polarization-sensitive light detection. Inspired by the elaborate architecture of butterfly Papilio paris, a 1D nanograting bonded porous 2D photonic crystal perovskite photodetector (G-PC-PD) using a commercial DVD master and 2D crystalline colloidal arrays template was fabricated. The coupling effect from grating diffraction and reflection of the PC stopband renders the enhanced light harvesting of G-PC-PD. The porous scaffold and nanoimprinting process afford a highly crystalline perovskite film. White light responsivity and detectivity of G-PC-PD are up to 12.67 A W−1 and 3.22×1013 Jones (6∼7 times that of a pristine perovskite photodetector). The highly ordered nanograting arrays of G-PC-PD enable polarization-sensitive light detection with a rate of −0.72 nA deg−1. This hierarchical perovskite integrated nanograting and 2D PC architecture opens a new avenue to high-performance optoelectronic devices.

Original languageEnglish
Pages (from-to)16456-16462
Number of pages7
JournalAngewandte Chemie - International Edition
Volume58
Issue number46
DOIs
Publication statusPublished - 11 Nov 2019
Externally publishedYes

Keywords

  • coupling effect
  • light-trapping structures
  • perovskites
  • photodetectors
  • polarized light detection

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