揭示零维铋基卤化物钙钛矿电化学发光材料的界面动力学

IF 9.5 2区 材料科学 Q1 CHEMISTRY, PHYSICAL
Chun Hong Mak, Yaojia Ai, Shun Cheung Cheng, Wenxin Niu, Minshu Du, Kuan-Chen Cheng, Guohua Jia, Xue-Qing Xu, Zheng Hu, Chi Chiu Ko, Guizheng Zou, Duu-Jong Lee and Hsien-Yi Hsu
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引用次数: 0

摘要

有机-无机卤化物钙钛矿由于其特殊的物理和化学性质而成为一类新型光电材料。值得注意的是,零维(0-D)二甲基碘化铋铵(DMA2BiI6)钙钛矿是电化学发光(ECL)发光应用的一个有前途的候选者。在此,我们设计了0-D DMA2BiI6钙钛矿发射器,并通过温度相关的瞬态光致发光(TRPL)和电化学ECL技术详细分析了激子传输动力学。由于激活能的降低和电子耦合的增强,有效的激子输运得到了证实。通过电化学方法,基于扩散系数和电子传递速率,我们证明了当三丙胺(TPrA)共反应物的加入时,电极-电解质界面上有效的非均质电荷转移导致ECL发射红移。因此,零维钙钛矿发射器的创建为快速发展的光电和生物传感技术领域的进步铺平了道路,包括但不限于ECL设备,ECL免疫测定,发光电化学电池,有机发光二极管和钙钛矿基发光二极管。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Unveiling interfacial dynamics of zero-dimensional bismuth-based halide perovskite emitters for electrochemiluminescence applications†

Unveiling interfacial dynamics of zero-dimensional bismuth-based halide perovskite emitters for electrochemiluminescence applications†

Organic–inorganic halide perovskites have emerged as a novel category of optoelectronic materials owing to their exceptional physical and chemical properties. Notably, zero-dimensional (0-D) dimethylammonium bismuth iodide (DMA3BiI6) perovskite is an emerging candidate for electrochemiluminescence (ECL) light-emitting applications. Herein, we design 0-D DMA3BiI6 perovskite emitters and provide a detailed analysis of exciton transport dynamics through temperature-dependent transient photoluminescence (TRPL) and charge transport kinetics by electrochemical ECL techniques. Efficient exciton transport has been substantiated by the reduced activation energy and enhanced electronic coupling. Based on the diffusion coefficient and electron-transfer rate through electrochemical methods, we demonstrate that effective heterogeneous charge transfer at the electrode–electrolyte interface leads to red-shifted ECL emission with the addition of the tripropylamine (TPrA) co-reactant. As a result, the creation of zero-dimensional perovskite emitters paves the way for advancements in the rapidly evolving fields of optoelectronic and biosensing technologies, including but not limited to ECL devices, ECL immunoassays, light-emitting electrochemical cells, organic light-emitting diodes, and perovskite-based light-emitting diodes.

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来源期刊
Journal of Materials Chemistry A
Journal of Materials Chemistry A CHEMISTRY, PHYSICAL-ENERGY & FUELS
CiteScore
19.50
自引率
5.00%
发文量
1892
审稿时长
1.5 months
期刊介绍: The Journal of Materials Chemistry A, B & C covers a wide range of high-quality studies in the field of materials chemistry, with each section focusing on specific applications of the materials studied. Journal of Materials Chemistry A emphasizes applications in energy and sustainability, including topics such as artificial photosynthesis, batteries, and fuel cells. Journal of Materials Chemistry B focuses on applications in biology and medicine, while Journal of Materials Chemistry C covers applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry A include catalysis, green/sustainable materials, sensors, and water treatment, among others.
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