December 1 - 6, 2024
Boston, Massachusetts

Event Supporters

2024 MRS Fall Meeting & Exhibit
EL07.06.01

Improving Photoelectric Conversion with Broadband Perovskite Metasurface

When and Where

Dec 3, 2024
8:00am - 8:15am
Sheraton, Second Floor, Back Bay D

Presenter(s)

Co-Author(s)

Ruwen Peng1,Mu Wang1

Nanjing University1

Abstract

Ruwen Peng1,Mu Wang1

Nanjing University1
The miniaturization and integration of optoelectronic devices require progressive size reduction of active layers, resulting in less optical absorption and lower quantum efficiency. In this work, we demonstrate that introducing a metasurface made of hybrid organic-inorganic perovskite (HOIP) can significantly enhance broadband absorption and improve photon-to-electron conversion, which roots from exciting Mie resonances together with suppressing optical transmission. Based on the HOIP metasurface, a broadband photodetector has been fabricated, where photocurrent boosts more than ten times in the frequency ranging from ultraviolet to visible. The device response time is less than 5.1 μs at wavelengths 380, 532, and 710 nm, and the relevant 3dB bandwidth is over 0.26 MHz. Moreover, this photodetector has been applied as a signal receiver for transmitting 2D color images in broadband optical communication. These results accentuate the practical applications of HOIP metasurfaces in novel optoelectronic devices for broadband optical communication.

Keywords

nanostructure

Symposium Organizers

Viktoriia Babicheva, University of New Mexico
Ho Wai (Howard) Lee, University of California, Irvine
Melissa Li, California Institute of Technology
Yu-Jung Lu, Academia Sinica

Symposium Support

Bronze
APL Quantum
Enlitech
Walter de Gruyter GmbH

Session Chairs

Dmitry Chigrin
Yu-Jung Lu

In this Session