Tuning Fluorescence Resonance Energy Transfer in Cadmium Telluride-Diketopyrrolopyrrole Hybrids via Bandgap Engineering

IF 3.3 3区化学 Q2 CHEMISTRY, PHYSICAL

The Journal of Physical Chemistry C Pub Date : 2024-12-26 DOI:10.1021/acs.jpcc.4c06589

Xiaonan Fan, Chenyang Wang, Heyuan Liu, Ruifan Zhang, Wenya Liu, Hantao Sun, Xianyuan Wang, Boce Cui, Yanli Chen, Xiyou Li

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Abstract

Fluorescence resonance energy transfer (FRET) has been proven to be an efficient sensitization method to construct broad-spectrum responsive organic–inorganic hybrid systems for efficient conversion and utilization of solar energy. To investigate the effect of the inorganic material bandgap on FRET dynamics and mechanism, we have constructed a series of cadmium telluride (CdTe) quantum dot (QD)-diketopyrrolopyrrole (DPP) hybrids via QD bandgap engineering. Steady-state and transient spectroscopy revealed that a fast and efficient FRET process was proceeded in these systems. Via controlling the spectral overlap degree between them by adjusting the CdTe QD size, the FRET dynamics and direction could be controlled effectively. A large spectral overlap integral between the emission of the donor and the absorption of the acceptor is crucial for realizing efficient and rapid FRET. These insights gained from this study contribute to the advancement of QD–dye nanocomposite materials, facilitating their application in a wide range of fields.

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带隙工程调谐碲化镉-二酮吡咯杂化体的荧光共振能量转移

荧光共振能量转移（FRET）已被证明是一种有效的敏化方法，用于构建广谱响应的有机-无机杂化体系，以实现太阳能的高效转换和利用。为了研究无机材料带隙对FRET动力学的影响及其机理，我们通过QD带隙工程构建了一系列碲化镉（CdTe）量子点(QD)-二酮吡咯（DPP）杂化体。稳态和瞬态光谱分析表明，在这些系统中进行了快速有效的FRET过程。通过调节CdTe量子点的大小来控制它们之间的光谱重叠度，可以有效地控制FRET的动态和方向。在供体的发射和受体的吸收之间有一个大的光谱重叠积分是实现高效和快速FRET的关键。这些见解有助于推进量子点染料纳米复合材料的发展，促进其在广泛领域的应用。

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来源期刊

The Journal of Physical Chemistry C 化学-材料科学：综合

CiteScore

6.50

自引率

8.10%

发文量

2047

审稿时长

1.8 months

期刊介绍： The Journal of Physical Chemistry A/B/C is devoted to reporting new and original experimental and theoretical basic research of interest to physical chemists, biophysical chemists, and chemical physicists.