NDLI: Characterisation of InAs/GaAs quantum dots intermediate band photovoltaic devices

Content Provider	IET Digital Library
Author	Nolasco, Edson Garduño Carrington, Peter J. Krier, Anthony Missous, Mohamed
Abstract	The authors report on the structural, the optical and the electrical properties of solar cells containing 20 layers of doped InAs/GaAs quantum dots (QDs). The structures were grown by molecular beam epitaxy and contain n dopant sheet densities of 8 and 16 × 1010cm−2, respectively, in between the QD layers. Under a 1 sun illumination, the open-circuit voltage (V oc) and the efficiency of the 8 × 1010cm−2 n-doped sample were increased to values of 0.73 V and 9.7%, respectively, compared with a reference undoped sample (a V oc of 0.70 V and an efficiency of 9.0%). However, the short-circuit current density (J sc) decreased from 20.1 to 17.4 mA/cm2 indicating bandfilling within the QD array.
Starting Page	71
Ending Page	75
Page Count	5
ISSN	17518768
Volume Number	8
e-ISSN	17518776
Issue Number	Issue 2, Apr (2014)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-opt/8/2
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-opt.2013.0056
Journal	IET Optoelectronics
Publisher Date	2014-02-25
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Bandfilling Electric Property Electrical Property Electrical Property of II-VI And III-V Semiconductors Epitaxy Gallium Arsenide II-VI And III-V SemiConductor III-V SemiConductor InAsâˆ’GaAs Indium Arsenide-gallium Arsenide Quantum Dots Indium Compound Low-Dimensional Structure: Growth, Structure And Nonelectronic Property Molecular Beam Epitaxial Growth Molecular Beam Epitaxy N Dopant Sheet Densities Open Circuit Voltage Optical Property Optical Property of II-VI And III-V SemiConductor Photoelectric Conversion Photoelectric Device Photovoltaic Cell Photovoltaic Device QD Array QD Layer Quantum Optics Semiconductor Epitaxial Layer Semiconductor Quantum Dots Short-circuit Current Short-circuit Current Density Solar Cell And Array Structural Property Structure Sun Illumination Thin Film Growth Thin Film Growth And Epitaxy Voltage 0.70 V Voltage 0.73 V Wide Band Gap SemiConductor
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering

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