Bright type-II photoluminescence from Mn-doped CdS/ZnSe/ZnS quantum dots with Mn2+ ions as exciton couplers

Nanoscale ◽  
2017 ◽  
Vol 9 (46) ◽  
pp. 18281-18289 ◽  
Author(s):  
Ruilin Xu ◽  
Chen Liao ◽  
Yanqing Xu ◽  
Chunfeng Zhang ◽  
Min Xiao ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Energy Transfer ◽  
Charge Transfer ◽  
Type Ii ◽  
Exciton Emission ◽  
Transfer Stations ◽  
Mn Doped

Mn2+ ions act as energy-transfer-stations of hot excitons (coupling-1) and couplers of cold excitons (coupling-2) to enhance charge-transfer exciton emission.

scholarly journals Surface plasmon enhanced energy transfer between type I CdSe/ZnS and type II CdSe/ZnTe quantum dots

2010 ◽  
Vol 96 (7) ◽  
pp. 071906 ◽  
Author(s):  
C. H. Wang ◽  
C. W. Chen ◽  
Y. T. Chen ◽  
C. M. Wei ◽  
Y. F. Chen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Energy Transfer ◽  
Surface Plasmon ◽  
Type I ◽  
Type Ii

A thin CdSe shell boosts the electron transfer from CdTe quantum dots to methylene blue

Nanoscale ◽  
2018 ◽  
Vol 10 (4) ◽  
pp. 2162-2169 ◽  
Author(s):  
L. Dworak ◽  
S. Roth ◽  
M. P. Scheffer ◽  
A. S. Frangakis ◽  
J. Wachtveitl
Keyword(s):  
Methylene Blue ◽  
Quantum Dots ◽  
Electron Transfer ◽  
Charge Transfer ◽  
Cdte Quantum Dots ◽  
Type Ii ◽  
Cdte Nanocrystals ◽  
Transfer Properties

The CdSe coating of CdTe nanocrystals produces quasi type-II quantum dots with improved charge transfer properties.

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