Coherent Spectroscopy of Multiple Excitons in Colloidal Nanocrystal Quantum Dots
Coherent Spectroscopy of Multiple Excitons in Colloidal Nanocrystal Quantum Dots
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胶体纳米晶量子点中多激子的相干光谱
DOI:
10.1002/cnma.201900218
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发表时间:
2019
期刊:
影响因子:
3.8
通讯作者:
H. Tahara and Y. Kanemitsu
中科院分区:
文献类型:
--
作者:
山川大路;宮本辰也;岡本博;H. Tahara and Y. Kanemitsu
Over three decades of intense research on colloidal semiconductor nanocrystal quantum dots (QDs) have passed, and the multitude of physical effects in QD systems still makes fascinating discoveries even today. In particular, the use of multiple excitons and their coherence is a hot topic to be investigated. We explore the potential of colloidal QDs for next‐generation optoelectronic applications. Here, we summarize our recent studies on the multiple‐exciton harmonic quantum coherence in PbS QDs. The multiple excitonic coherence can be observed with our newly developed system for phase‐locked interference detection of transient absorption signals. We found that multiple excitons exhibit dipole oscillations with integer multiples of the exciton resonance frequency. An important practical feature of this harmonic quantum coherence of multiple excitons is that it assists photoabsorption processes. Therefore, harmonic quantum coherence is a key to realize advanced optoelectronic applications.
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DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
J. M. Shacklette;S. Cundiff
通讯作者:
S. Cundiff
影响因子:
10.8
作者:
Protesescu L;Yakunin S;Bodnarchuk MI;Krieg F;Caputo R;Hendon CH;Yang RX;Walsh A;Kovalenko MV
通讯作者:
Kovalenko MV
影响因子:
56.9
作者:
Semonin, Octavi E.;Luther, Joseph M.;Beard, Matthew C.
通讯作者:
Beard, Matthew C.
影响因子:
1.7
作者:
T. Yajima;Y. Taira
通讯作者:
T. Yajima;Y. Taira
影响因子:
3.7
作者:
Stubbs S
通讯作者:
Stubbs S