NDLI: Hierarchical self-assembly of CdTe quantum dots into hyperbranched nanobundles: Suppression of biexciton Auger recombination

Content Provider	Royal Society of Chemistry (RSC)
Author	Chen, Qi-Dai Fu, Li-Min Xu, Shu-Ping Gao, Bing-Rong Sun, Hong-Bo Zhao, Lei Liu, Hong Xia, Hong Pan, Ling-Yun Zhang, Yong-Lai Wang, Hai-Yu Luo, Jing-Shan
Copyright Year	2011
Abstract	In this paper, we report a novel nanobundle structure formed by the hierarchical self-assembly of TGA-capped CdTe quantum dots. HR-TEM confirms the polycrystalline phase of the bundle structure, and that pristine quantum dots are the building units. The steady state absorption and luminescence properties of the pristine quantum dots can be well inherited by the nanobundles. In transient state observation, carrier quenching induced by Auger recombination is found to be remarkably suppressed. Electron delocalizing to close building units is considered to be the reason. Suppression of Auger recombination may earn much more time for charge separation, which makes the novel nanobundle structures suitable for the excellent donor material in solar cell applications.
Starting Page	2882
Ending Page	2888
Page Count	7
File Format	HTM / HTML PDF
ISSN	20403364
Volume Number	3
Issue Number	7
Journal	Nanoscale
DOI	10.1039/c1nr10121h
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Solar cell Quantum Self-assembly Luminescence Carrier generation and recombination Crystallite
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology

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Hierarchical self-assembly of CdTe quantum dots into hyperbranched nanobundles: Suppression of biexciton Auger recombination