Two-step, sequential, efficient, artificial light-harvesting systems based on twisted cucurbit[14]uril for manufacturing white light emission materials

IF 13.3 1区工程技术 Q1 ENGINEERING, CHEMICAL

Chemical Engineering Journal Pub Date : 2022-10-15 DOI:10.1016/j.cej.2022.136954

Wei Zhang, Yang Luo, Xin-Long Ni, Zhu Tao, Xin Xiao

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引用次数: 16

Abstract

White-light-emitting (WLE) materials have promising and valuable applications in controllable lighting, screen displays and sensing. In this study, a two-step sequence of highly efficient artificial light-harvesting systems (ALHSs) with white light emission is successfully constructed in the aqueous phase through a non-covalent bond among imidazole derivatives (DIm), twisted cucurbit[14]uril (tQ[14]), eosin Y (ESY), and Nile red (NiR). The prepared linear supramolecular polymer (DIm@tQ[14]) constructed by DIm and tQ[14] through host–guest interaction is an ideal energy donor due to its superior aggregation-induced emission effect, which enables one-step energy transfer by loading ESY and two-step energy transfer by further loading NiR with a high efficiency of 91.47%. The emission color of the two-step sequential ALHSs changes from cyan to chartreuse then to orange-red, and bright white light emission can be achieved by controlling the donor/acceptor molar ratio. Moreover, the assemblies of the two-step sequential ALHSs can be applied to white LED materials. This research not only simulates the multi-step energy transfer process in nature but also has an attractive commercial value in the manufacturing of WLE materials.

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基于扭曲瓜[14]的两步连续高效人工光收集系统，用于制造白光发射材料

白光材料在可控照明、屏幕显示和传感等领域有着广阔的应用前景。在本研究中，通过咪唑衍生物(DIm)、扭曲葫芦[14]、乌利尔(tQ[14])、伊红Y (ESY)和尼罗红(NiR)之间的非共价键，在水相中成功构建了两步白光发射的高效人工光收集系统(alhs)。DIm和tQ[14]通过主客体相互作用构建的线性超分子聚合物(DIm@tQ[14])具有优越的聚集诱导发射效应，通过加载ESY实现一步能量转移，通过进一步加载NiR实现两步能量转移，效率高达91.47%。两步序化alhs的发射色由青色变为黄绿色再变为橙红色，通过控制供体/受体的摩尔比可以实现明亮的白光发射。此外，两步顺序alhs的组件可以应用于白光LED材料。本研究不仅模拟了自然界的多步能量传递过程，而且在WLE材料的制造中具有诱人的商业价值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemical Engineering Journal 工程技术-工程：化工

CiteScore

21.70

自引率

9.30%

发文量

6781

审稿时长

2.4 months

期刊介绍： The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.