量子切割纳米晶体作为发光太阳能聚光器发光体的蒙特卡罗模拟

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS

ACS Applied Bio Materials Pub Date : 2024-06-12 DOI:10.3390/photonics11060553

Qi Nie, Wenqi Li, Xiao Luo

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引用次数: 0

摘要

量子切割发光太阳能聚光器（QC-LSCs）在用作大面积太阳能窗口方面具有巨大潜力。这些 QC 纳米晶体可以实现高达 200% 的光致发光量子产率 (PLQY)，而且自吸收损耗几乎为零。在之前工作的基础上，我们构建了适合模拟 QC-LSC 性能的蒙特卡洛模拟模型，该模型可以考虑 QC 材料的带边发射和近红外发射。在理想的 PLQY 条件下，基于 CsPbClxBr3-x:Yb3+ 的 LSCs 可以达到与尺寸无关的外部量子效率（ηext）的 12%。即使 LSCs 具有一定的散射系数，基于 CsPbClxBr3-x:Yb3+ 的 LSCs 仍能在窗口尺寸（大于 1 m2）下获得超过 6% 的 ηext。在窗口尺寸下，基于 CsPbClxBr3-x:Yb3+ 的 LSC-PV 系统的通量增益（FG）可达到 14，这是一个非常令人鼓舞的结果。

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Monte Carlo Simulation of Quantum-Cutting Nanocrystals as the Luminophore in Luminescent Solar Concentrators

Quantum-cutting luminescent solar concentrators (QC-LSCs) have great potential to serve as large-area solar windows. These QC nanocrystals can realize a photoluminescence quantum yield (PLQY) of as high as 200% with virtually zero self-absorption loss. Based on our previous work, we have constructed a Monte Carlo simulation model that is suitable to simulate the performance of the QC-LSCs, which can take into account the band-edge emissions and near-infrared emissions of the QC-materials. Under ideal PLQY conditions, CsPbClxBr3−x:Yb3+-based LSCs can reach 12% of the size-independent external quantum efficiency (ηext). Even if LSCs have a certain scattering factor, the CsPbClxBr3−x:Yb3+-based LSCs can still obtain an ηext exceeding 6% in the window size (>1 m2). The flux gain (FG) of the CsPbClxBr3−x:Yb3+-based LSC-PV system can reach 14 in the window size, which is a very encouraging result.

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来源期刊

ACS Applied Bio Materials Chemistry-Chemistry (all)

CiteScore

9.40

自引率

2.10%

发文量

464

期刊介绍： ACS Applied Bio Materials is an interdisciplinary journal publishing original research covering all aspects of biomaterials and biointerfaces including and beyond the traditional biosensing, biomedical and therapeutic applications. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important bio applications. The journal is specifically interested in work that addresses the relationship between structure and function and assesses the stability and degradation of materials under relevant environmental and biological conditions.