Tuning electronic and nonlinear optical properties of black phosphorus quantum dots through introducing electron-donating/withdrawing molecules (TTF/TCNQ)

2021 ◽  
Author(s):  
Na Hou ◽  
Ran Feng ◽  
Xiao Hui Fang ◽  
Fang Yue Du ◽  
Hai Shun Wu
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Nonlinear Optical ◽  
Organic Molecules ◽  
Black Phosphorus ◽  
Nonlinear Optical Properties ◽  
Black Phosphorus Quantum Dots

Two novel complexes were constructed by adsorption of two typical organic molecules, including one electron-donating molecule (TTF = tetrathiafulvalene) and one electron-withdrawing molecule (TCNQ = tetracyanoquinodimethane), on the surface of...

scholarly journals Scalable Production of Boron Quantum Dots for Broadband Ultrafast Nonlinear Optical Performance

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 687
Author(s):  
Shuolei Meng ◽  
Qianyuan Chen ◽  
Hongjian Lin ◽  
Feng Zhou ◽  
Youning Gong ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Relaxation Time ◽  
Nonlinear Optical ◽  
Average Diameter ◽  
Optical Devices ◽  
Nonlinear Optical Properties ◽  
Saturable Absorption ◽  
Nonlinear Optical Susceptibility ◽  
Tandem Structure

A simple and effective approach based on the liquid phase exfoliation (LPE) method has been put forward for synthesizing boron quantum dots (BQDs). By adjusting the interactions between bulk boron and various solvents, the average diameter of produced BQDs is about 7 nm. The nonlinear absorption (NLA) responses of as-prepared BQDs have been systematically studied at 515 nm and 1030 nm. Experimental results prove that BQDs possess broadband saturable absorption (SA) and good third-order nonlinear optical susceptibility, which are comparable to graphene. The fast relaxation time and slow relaxation time of BQDs at 515 nm and 1030 nm are about 0.394–5.34 ps and 4.45–115 ps, respectively. The significant ultrafast nonlinear optical properties can be used in optical devices. Here, we successfully demonstrate all-optical diode application based on BQDs/ReS2 tandem structure. The findings are essential for understanding the nonlinear optical properties in BQDs and open a new pathway for their applications in optical devices.

scholarly journals Electronic properties and third-order optical nonlinearities in tetragonal chalcopyrite AgInS2, AgInS2/ZnS and cubic spinel AgIn5S8, AgIn5S8/ZnS quantum dots

2017 ◽  
Vol 5 (1) ◽  
pp. 149-158 ◽  
Author(s):  
Bartłomiej Cichy ◽  
Dominika Wawrzynczyk ◽  
Marek Samoc ◽  
Wiesław Stręk
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Electronic Properties ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Optical Nonlinearities ◽  
Third Order

Electronic as well as third-order nonlinear optical properties of chalcopyrite AgInS2 and non-stoichiometric spinel AgIn5S8 quantum dots compared with corresponding Zn2+ alloyed compounds are presented in this work.

Third-Order Nonlinear Optical Properties of Infrared Emitting PbS and PbSe Quantum Dots

2016 ◽  
Vol 120 (38) ◽  
pp. 21939-21945 ◽  
Author(s):  
Dominika Wawrzynczyk ◽  
Janusz Szeremeta ◽  
Marek Samoc ◽  
Marcin Nyk
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Third Order
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