Effect of spacer layer thickness on multi-stacked InGaAs quantum dots grown on GaAs (311)B substrate for application to intermediate band solar cells

2012 ◽  
Vol 111 (7) ◽  
pp. 074305 ◽  
Author(s):  
Yasushi Shoji ◽  
Kohei Narahara ◽  
Hideharu Tanaka ◽  
Takashi Kita ◽  
Katsuhiro Akimoto ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Layer Thickness ◽  
Intermediate Band ◽  
Intermediate Band Solar Cells ◽  
Spacer Layer Thickness ◽  
Spacer Layer

scholarly journals Mapping bound plasmon propagation on a nanoscale stripe waveguide using quantum dots: influence of spacer layer thickness

2015 ◽  
Vol 6 ◽  
pp. 2046-2051 ◽  
Author(s):  
Chamanei S Perera ◽  
Alison M Funston ◽  
Han-Hao Cheng ◽  
Kristy C Vernon
Keyword(s):  
Quantum Dots ◽  
Laser Beam ◽  
Layer Thickness ◽  
Near Field ◽  
Surface Distance ◽  
Spacer Layer Thickness ◽  
Spacer Layer ◽  
20 Nm ◽  
Mode A ◽  
Plasmon Propagation

In this paper we image the highly confined long range plasmons of a nanoscale metal stripe waveguide using quantum emitters. Plasmons were excited using a highly focused 633 nm laser beam and a specially designed grating structure to provide stronger incoupling to the desired mode. A homogeneous thin layer of quantum dots was used to image the near field intensity of the propagating plasmons on the waveguide. We observed that the photoluminescence is quenched when the QD to metal surface distance is less than 10 nm. The optimised spacer layer thickness for the stripe waveguides was found to be around 20 nm. Authors believe that the findings of this paper prove beneficial for the development of plasmonic devices utilising stripe waveguides.

Towards intermediate-band solar cells with InAs/AlAsSb quantum dots

2013 ◽  
Author(s):  
Meng Sun ◽  
Paul J. Simmonds ◽  
Ramesh Babu Laghumavarapu ◽  
Andrew Lin ◽  
Charles J. Reyner ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Intermediate Band ◽  
Intermediate Band Solar Cells
Sign in / Sign up

Export Citation Format

Share Document