Ultraviolet saturable absorption and ultrafast carrier dynamics in ultrasmall black phosphorus quantum dots

Nanoscale ◽  
2017 ◽  
Vol 9 (14) ◽  
pp. 4683-4690 ◽  
Author(s):  
Y. W. Wang ◽  
S. Liu ◽  
B. W. Zeng ◽  
H. Huang ◽  
J. Xiao ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Carrier Dynamics ◽  
Black Phosphorus ◽  
Saturable Absorption ◽  
Ultrafast Carrier Dynamics ◽  
Ultrafast Carrier ◽  
Black Phosphorus Quantum Dots

Ultrafast Carrier Dynamics and Efficient Triplet Generation in Black Phosphorus Quantum Dots

2017 ◽  
Vol 121 (23) ◽  
pp. 12972-12978 ◽  
Author(s):  
Lan Chen ◽  
Chunfeng Zhang ◽  
Long Li ◽  
Han Wu ◽  
Xiaoyong Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Carrier Dynamics ◽  
Black Phosphorus ◽  
Ultrafast Carrier Dynamics ◽  
Ultrafast Carrier ◽  
Black Phosphorus Quantum Dots

Ultrafast carrier dynamics in CuInS2 quantum dots

2014 ◽  
Vol 104 (2) ◽  
pp. 023118 ◽  
Author(s):  
Jianhui Sun ◽  
Dehua Zhu ◽  
Jialong Zhao ◽  
Michio Ikezawa ◽  
Xiuying Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Carrier Dynamics ◽  
Ultrafast Carrier Dynamics ◽  
Ultrafast Carrier ◽  
Cuins2 Quantum Dots

scholarly journals Ultrafast carrier dynamics in CdTe/CdS Core/Shell quantum dots

2012 ◽  
Vol 61 (19) ◽  
pp. 197801
Author(s):  
Li Xia ◽  
Feng Dong-Hai ◽  
He Hong-Yan ◽  
Jia Tian-Qing ◽  
Shan Lu-Fan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Carrier Dynamics ◽  
Core Shell ◽  
Ultrafast Carrier Dynamics ◽  
Ultrafast Carrier

scholarly journals Ultrafast carrier dynamics in an InAs/InGaAs quantum dots-in-a-well heterostructure

2008 ◽  
Vol 16 (2) ◽  
pp. 1165 ◽  
Author(s):  
R. P. Prasankumar ◽  
R. S. Attaluri ◽  
R. D. Averitt ◽  
J. Urayama ◽  
N. Weisse-Bernstein ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Carrier Dynamics ◽  
Ultrafast Carrier Dynamics ◽  
Ultrafast Carrier

Ultrafast carrier dynamics in semiconductor quantum dots

1996 ◽  
Vol 53 (3) ◽  
pp. 1463-1467 ◽  
Author(s):  
V. Klimov ◽  
P. Haring Bolivar ◽  
H. Kurz
Keyword(s):  
Quantum Dots ◽  
Carrier Dynamics ◽  
Semiconductor Quantum Dots ◽  
Ultrafast Carrier Dynamics ◽  
Ultrafast Carrier

Ultrafast Carrier Dynamics in CdSe/CdS/ZnS Quantum Dots

2011 ◽  
Vol 24 (6) ◽  
pp. 640-646 ◽  
Author(s):  
Guan-xin Yao ◽  
Zai-xi Fu ◽  
Xian-yi Zhang ◽  
Xian-feng Zheng ◽  
Xue-han Ji ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Carrier Dynamics ◽  
Ultrafast Carrier Dynamics ◽  
Ultrafast Carrier

scholarly journals The pump fluence and wavelength-dependent ultrafast carrier dynamics and optical nonlinear absorption in black phosphorus nanosheets

Nanophotonics ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 2033-2043 ◽  
Author(s):  
Wenzhi Wu ◽  
Yongjian Zhou ◽  
Jun Wang ◽  
Yabin Shao ◽  
Degui Kong ◽  
...  
Keyword(s):  
Nonlinear Absorption ◽  
Broad Band ◽  
Visible Region ◽  
Carrier Dynamics ◽  
Black Phosphorus ◽  
Transient Absorption Spectroscopy ◽  
Photon Absorption ◽  
Open Aperture ◽  
Ultrafast Carrier Dynamics ◽  
Ultrafast Carrier

AbstractPump fluence and probe wavelength-dependent ultrafast carrier dynamics and optical nonlinear absorption in black phosphorus nanosheets are investigated by transient absorption spectroscopy and open-aperture Z scan techniques. The decay time becomes longer with larger wavelengths under pump wavelengths of both 400 nm and 800 nm excitation. For 800 nm excitation, pump fluence-dependent lifetime shows complex behaviors, which might be due to the competition between the linear absorption and two photon absorption. For 400 nm excitation, an additional decaying channel is observed at a larger pump fluence, which is explained by an effective subband structure. In open-aperture Z scan measurements, strong saturation absorption is observed in the visible region over a broad band from 450 nm to 700 nm. The saturation intensity shows an increasing trend with increase in the wavelength. Also, the saturation intensities under different pulse widths and solvents are discussed in detail. Our results show that black phosphorus nanosheets have great potential in future ultrathin optoelectronic devices.

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