A Butterfly‐Inspired Hierarchical Light‐Trapping Structure towards a High‐Performance Polarization‐Sensitive Perovskite Photodetector

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 m...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2019-11, Vol.58 (46), p.16456-16462
Main Authors: Zhan, Yan, Wang, Yang, Cheng, Qunfeng, Li, Chang, Li, Kaixuan, Li, Huizeng, Peng, Jingsong, Lu, Bo, Wang, Yu, Song, Yanlin, Jiang, Lei, Li, Mingzhu
Format: Article
Language:English
Subjects:
Architecture
Arrays
coupling effect
Crystal structure
Crystallinity
light-trapping structures
Optical disks
Optoelectronic devices
Perovskites
photodetectors
Photometers
Photonic crystals
Polarization
polarized light detection
Structural hierarchy
White light
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Summary: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. The elaborate architecture of the butterfly Papilio paris served as inspiration for the fabrication of a 1D nanograting bonded porous 2D photonic crystal perovskite photodetector (G‐PC‐PD). The coupling effect from grating diffraction and reflection of a PC stopband induces enhanced light harvesting, and the unidirectional 1D nanograting arrays enable the polarization‐sensitive light detection of G‐PC‐PD.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201908743