Carrier multiplication in semiconductor nanocrystals detected by energy transfer to organic dye molecules

Jun Xiao, Ying Wang, Zheng Hua, Xiaoyong Wang (), Chunfeng Zhang and Min Xiao ()
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Jun Xiao: National Laboratory of Solid State Microstructures and School of Physics, Nanjing University
Ying Wang: National Laboratory of Solid State Microstructures and School of Physics, Nanjing University
Zheng Hua: National Laboratory of Solid State Microstructures and School of Physics, Nanjing University
Xiaoyong Wang: National Laboratory of Solid State Microstructures and School of Physics, Nanjing University
Chunfeng Zhang: National Laboratory of Solid State Microstructures and School of Physics, Nanjing University
Min Xiao: National Laboratory of Solid State Microstructures and School of Physics, Nanjing University

Nature Communications, 2012, vol. 3, issue 1, 1-7

Abstract: In semiconductors, an absorbed photon can generate multiple electron-hole pairs, but measurements of this carrier multiplication efficiency in nanocrystals need to correctly account for charged excitons. Xiaoet al.meet this need by measuring energy transfer of biexcitons from nanocrystals to acceptor dyes.

Date: 2012
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DOI: 10.1038/ncomms2183

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