Campus Units

Chemistry

Document Type

Article

Publication Version

Accepted Manuscript

Publication Date

2-4-2019

Journal or Book Title

Angewandte Chemie International Edition

Volume

58

Issue

6

First Page

1643

Last Page

1647

DOI

10.1002/anie.201812146

Abstract

Light harvesting is a key step in photosynthesis but creation of synthetic light‐harvesting systems (LHSs) with high efficiencies has been challenging. When donor and acceptor dyes with aggregation‐induced emission were trapped within the interior of cross‐linked reverse vesicles, LHSs were obtained readily through spontaneous hydrophobically driven aggregation of the dyes in water. Aggregation in the confined nanospace was critical to the energy transfer and the light‐harvesting efficiency. The efficiency of the excitation energy transfer (EET) reached 95 % at a donor/acceptor ratio of 100:1 and the energy transfer was clearly visible even at a donor/acceptor ratio of 10 000:1. Multicolor emission was achieved simply by tuning the donor/acceptor feed ratio in the preparation and the quantum yield of white light emission from the system was 0.38, the highest reported for organic materials in water to date.

Comments

This is the peer-reviewed version of the following article: Li, Chuanqi, Jing Zhang, Shiyong Zhang, and Yan Zhao. "Efficient Light‐Harvesting Systems with Tunable Emission through Controlled Precipitation in Confined Nanospace." Angewandte Chemie International Edition 58, no. 6 (2019): 1643-1647, which has been published in final form at DOI: 10.1002/anie.201812146. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. Posted with permission.

Copyright Owner

Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim

Language

en

File Format

application/pdf

Published Version

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