Journal
CHEMICAL SCIENCE
Volume 8, Issue 1, Pages 590-599Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6sc03515a
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Funding
- 973 Program [2014CB932103]
- National Natural Science Foundation of China (NSFC)
- Beijing Municipal Natural Science Foundation [2152016]
- Fundamental Research Funds for Central Universities
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Tuning and optimizing the efficiency of light energy transfer play an important role in meeting modern challenges of minimizing energy loss and developing high-performance optoelectronic materials. However, attempts to fabricate systems giving highly efficient energy transfer between luminescent donor and acceptor have achieved limited success to date. Herein, we present a strategy towards phosphorescence energy transfer at a 2D orderly crystalline interface. We first show that new ultrathin nanosheet materials giving long-afterglow luminescence can be obtained by assembling aromatic guests into a layered double hydroxide host. Furthermore, we demonstrate that co-assembly of these long-lived energy donors with an energy acceptor in the same host generates an ordered arrangement of phosphorescent donor-acceptor pairs spatially confined within the 2D nanogallery, which affords energy transfer efficiency as high as 99.7%. Therefore, this work offers an alternative route to develop new types of long-afterglow nanohybrids and efficient light transfer systems with potential energy, illumination and sensor applications.
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