Chiral electroluminescence from thin-film perovskite metacavities

被引：15

作者：

Kim, Seongheon ^{[1
]}

An, Soo-Chan ^{[1
]}

Kim, Younggon ^{[1
]}

Shin, Yun Seop ^{[2
]}

Antonov, Alexander A. ^{[3
]}

Seo, In Cheol ^{[1
]}

Woo, Byung Hoon ^{[1
]}

Lim, Yeonsoo ^{[1
]}

Gorkunov, Maxim V. ^{[3
,4
]}

Kivshar, Yuri S. ^{[5
]}

Kim, Jin Young ^{[2
,6
]}

Jun, Young Chul ^{[1
,7
]}

机构：

[1] Ulsan Natl Inst Sci & Technol UNIST, Dept Mat Sci & Engn, Ulsan 44919, South Korea

[2] Ulsan Natl Inst Sci & Technol UNIST, Sch Energy & Chem Engn, Ulsan 44919, South Korea

[3] Russian Acad Sci, Fed Sci Res Ctr Crystallog & Photon, Shubnikov Inst Crystallog, Moscow 119333, Russia

[4] Natl Res Nucl Univ, Moscow Engn Phys Inst, MEPhI, Moscow 115409, Russia

[5] Australian Natl Univ, Nonlinear Phys Ctr, Res Sch Phys, Canberra, ACT 2601, Australia

[6] Ulsan Natl Inst Sci & Technol UNIST, Grad Grad Sch Carbon Neutral, Ulsan 44919, South Korea

[7] Ulsan Natl Inst Sci & Technol UNIST, Grad Sch Semicond Mat & Devices Engn, Ulsan 44919, South Korea

来源：

SCIENCE ADVANCES | 2023年 / 9卷 / 26期

基金：

澳大利亚研究理事会; 新加坡国家研究基金会; 俄罗斯科学基金会;

关键词：

LIGHT-EMITTING DIODE; METAMATERIAL; EMISSION;

D O I：

10.1126/sciadv.adh0414

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Chiral light sources realized in ultracompact device platforms are highly desirable for various applications. Among active media used for thin-film emission devices, lead-halide perovskites have been extensively studied for photoluminescence due to their exceptional properties. However, up to date, there have been no demonstrations of chiral electroluminescence with a substantial degree of circular polarization (DCP) based on perovskite materials, being critical for the development of practical devices. Here, we propose a concept of chiral light sources based on a thin-film perovskite metacavity and experimentally demonstrate chiral electroluminescence with a peak DCP approaching 0.38. We design a metacavity created by a metal and a dielectric metasurface supporting photonic eigenstates with a close-to-maximum chiral response. Chiral cavity modes facilitate asymmetric electroluminescence of pairs of left and right circularly polarized waves propagating in the opposite oblique directions. The proposed ultracompact light sources are especially advantageous for many applications requiring chiral light beams of both helicities.

引用

页数：10