Ultrafast red-shift of biexciton binding energy by multiple exciton generation in PbS quantum dots

被引:0
|
作者
Choi, Younghwan [1 ]
Lim, Seongchu [2 ]
Lee, Young Hee [2 ]
Choi, Hyunyong [1 ]
机构
[1] Yonsei Univ, Sch Elect & Elect Engn, Seoul 120749, South Korea
[2] Sungkyunkwan Univ, Dept Energy Sci, Dept Phys, Inst Basic Sci,Ctr Integrated Nanostruct Phys, Suwon 440746, South Korea
关键词
NANOCRYSTALS;
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中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Using ultrafast pump-probe spectroscopy, we investigate the exciton-exciton interaction in PbS quantum dot, and show that the biexciton binding energy is strongly altered by the extra single-exciton generated by the carrier multiplication process.
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页数:2
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