用于高透明建筑集成光伏的近红外胶体量子点的等离子体诱导荧光增强

IF 16.8 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy Pub Date : 2024-12-29 DOI:10.1016/j.nanoen.2024.110632

Yueling Lai, Yiqing Chen, Lianju Wang, Xianglong Zhao, Kanghui Zheng, Jiang Zhong, Xin Tong, Ruilin Wang, Federico Rosei, Yufeng Zhou

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引用次数: 0

摘要

由局域表面等离子体共振（LSPR）贵金属纳米粒子（NPs）和无机量子点（QDs）组成的杂化纳米结构（NSs）由于其独特的光学性质，可以实现增强的光致发光（PL）。然而，贵金属的高成本和低储量极大地限制了其向实际应用的发展。在实际应用中，随着辐射发射速率的降低，在第二个近红外（NIR）窗口（900-1700 nm）实现lspr诱导的量子点PL发射增强仍然具有挑战性。本文报道了在近红外区（PL发射中心为~917 nm）合成了不含贵金属的Cu2-xSe@SiO2@CuInSe2-xSx/ZnS核/壳/壳杂化NSs （C@S@S）。与原来的CuInSe2-xSx/ZnS量子点相比，这些量子点的绝对发光量子产率（QY）为~45% (Eex=520 nm)，发光增强因子（EF）为4.24。在理论模拟和瞬态吸收测量的基础上，提出并论证了lspr增强PL发射机制和该近红外混合系统中的载流子动力学。作为概念验证，混合NSs用于制造基于发光太阳能聚光器（LSC，尺寸为6×6×0.3 cm3）和Si pv的高透明（可见光透射率为89.1%）建筑集成光伏（BIPV）系统，与单一基于qds的LSC- pv系统相比，该系统具有更高的功率转换效率（PCE, 0.23%）和光稳定性。这种方法为解决提高近红外量子点的PL性能的挑战提供了可行的技术途径，并为基于量子点的新兴光电技术开辟了其他机会。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Plasmon-induced fluorescence enhancement of near-infrared colloidal quantum dots for highly transparent building-integrated photovoltaics

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Plasmon-induced fluorescence enhancement of near-infrared colloidal quantum dots for highly transparent building-integrated photovoltaics

Due to their unique optical properties, hybrid nanostructures (NSs) composed of localized surface plasmon resonance (LSPR) noble metal nanoparticles (NPs) and inorganic quantum dots (QDs) can achieve enhanced photoluminescence (PL). However, high costs and low reserves of precious metals greatly limit their development into practical applications. It is still challenging to achieve LSPR-induced enhancement in PL emission of QDs in the second near-infrared (NIR) window (900-1700 nm) for practical use, as the radiative emission rate decreases. Herein we report the synthesis of noble-metal-free Cu_2-xSe@SiO₂@CuInSe_2-xS_x/ZnS core/shell/shell hybrid NSs (C@S@S for short) in the NIR region (PL emission centered at ~917 nm). These NSs exhibit absolute PL quantum yield (QY) of ~45% (E_ex=520 nm) and PL enhancement factor (EF) of 4.24 compared to the original CuInSe_2-xS_x/ZnS QDs. A fundamental understanding of the LSPR-enhancement mechanism in PL emission and the carrier dynamics in this NIR hybrid system has been proposed and demonstrated based on theoretical simulations and transient absorption measurements. As a proof of concept, the hybrid NSs are used to fabricate a highly transparent (visible light transmission of 89.1%) building-integrated photovoltaic (BIPV) system based on luminescent solar concentrator (LSC, dimensions of 6×6×0.3 cm³) and Si PVs, which exhibits an enhanced power conversion efficiency (PCE, 0.23%) and photostability with respect to those of sole QDs-based LSC-PV systems. This approach provides a feasible technological pathway to address the challenge of improving the PL performance of NIR QDs and opens up other opportunities in QD-based emerging optoelectronic technologies.

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来源期刊

Nano Energy CHEMISTRY, PHYSICAL-NANOSCIENCE & NANOTECHNOLOGY

CiteScore

30.30

自引率

7.40%

发文量

1207

审稿时长

23 days

期刊介绍： Nano Energy is a multidisciplinary, rapid-publication forum of original peer-reviewed contributions on the science and engineering of nanomaterials and nanodevices used in all forms of energy harvesting, conversion, storage, utilization and policy. Through its mixture of articles, reviews, communications, research news, and information on key developments, Nano Energy provides a comprehensive coverage of this exciting and dynamic field which joins nanoscience and nanotechnology with energy science. The journal is relevant to all those who are interested in nanomaterials solutions to the energy problem. Nano Energy publishes original experimental and theoretical research on all aspects of energy-related research which utilizes nanomaterials and nanotechnology. Manuscripts of four types are considered: review articles which inform readers of the latest research and advances in energy science; rapid communications which feature exciting research breakthroughs in the field; full-length articles which report comprehensive research developments; and news and opinions which comment on topical issues or express views on the developments in related fields.