基于稀土的二维材料的多波段发光

IF 17.3 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter Pub Date : 2024-12-17 DOI:10.1016/j.matt.2024.11.023

Rahul Rao, Emmanuel Rowe, Ryan Siebenaller, Jonathan T. Goldstein, Adam Alfieri, Bongjun Choi, Ryan Selhorst, Andrea N. Giordano, Jie Jiang, Christopher E. Stevens, Thuc T. Mai, Tyson C. Back, Ruth Pachter, Joshua R. Hendrickson, Deep Jariwala, Michael A. Susner

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引用次数: 0

摘要

二维（2D）材料中的光致发光（PL）发射在纳米光子学应用中具有重大意义。虽然在许多二维材料中都观察到了激子发射，但可调谐的多波段发光却很少见。在这里，我们展示了单晶 AgErP2Se6，这是一种二维材料，它能从晶格内的 Er3+ 离子发出明亮的多波段 PL 发射。这些发射带覆盖的范围很广（350-1,550 nm），具有超窄（室温下低至 0.5 nm）的发射峰，室温寿命可达 4 μs。单晶体的聚光发射带强度与温度和压力密切相关，因此可以在很宽的温度和压力范围内进行传感。此外，PL 在厚度至少为 11 nm 的剥离薄片中持续存在，并表现出厚度依赖性 Purcell 增强。这项研究将二维 AgErP2Se6 确立为一种多波段发光体和传感器，有望集成到许多光电和纳米光子应用中。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Multi-band luminescence from a rare earth-based two-dimensional material

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Multi-band luminescence from a rare earth-based two-dimensional material

Photoluminescence (PL) emission in two-dimensional (2D) materials is of great interest for nanophotonics applications. While excitonic emission has been observed in numerous 2D materials, tunable multi-band luminescence is rare. Here, we present single-crystalline AgErP₂Se₆, a 2D material that exhibits bright, multi-band PL emission from Er³⁺ ions within the lattice. The emission bands cover a wide range (350–1,550 nm), with ultra-narrow (as low as 0.5 nm at room temperature) emission peaks and room temperature lifetimes up to ∼4 μs. The intensities of the PL emission bands from the single crystals depend strongly on temperature and pressure, enabling sensing over a wide temperature and pressure range. Furthermore, the PL persists in exfoliated flakes down to at least 11 nm thick and demonstrates thickness-dependent Purcell enhancement. This work establishes 2D AgErP₂Se₆ as a multi-band luminescent emitter and sensor, poised to enable integration into a number of optoelectronic and nanophotonic applications.

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来源期刊

Matter MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

26.30

自引率

2.60%

发文量

367

期刊介绍： Matter, a monthly journal affiliated with Cell, spans the broad field of materials science from nano to macro levels,covering fundamentals to applications. Embracing groundbreaking technologies,it includes full-length research articles,reviews, perspectives,previews, opinions, personnel stories, and general editorial content. Matter aims to be the primary resource for researchers in academia and industry, inspiring the next generation of materials scientists.