Journal
ADVANCED FUNCTIONAL MATERIALS
Volume 30, Issue 32, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.202002468
Keywords
antimony; photoluminescence quantum yield enhancement; 0D metal halide hybrids
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Funding
- NSFC [51872297, 51802321, 51702330, 51961145101]
- Fujian Institute of Innovation [FJCXY18010201]
- Fundamental Research Funds for the Central Universities [D2190980]
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Enhancing photoluminescence quantum yield (PLQY) is one of the most important issues in photoluminescent materials. Herein, a molecule design strategy to improve the PLQY in 0D metal halides is proposed. Two new lead-free organic-inorganic metal halide hybrids with broadband orange emissions have been prepared with a PLQY increase of 57% from (C6N2H16)SbCl5(I) to (C6N2H16)SbCl5.H2O (II) by introducing H2O molecules. These two compounds have very similar inorganic frameworks, except that the incorporation of water molecules inIIincreases the distance between the [SbCl5] polyhedra. It is revealed that the increase of PLQY is mainly attributed to the generation of more local photoelectrons resulting from the additional water molecules. This work provides a new insight to improve the PLQY for 0D environmentally friendly organic-inorganic metal halide hybrids and is beneficial for further photoluminescent material exploration.
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