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Journal of Nanophotonics

Optical field dissipation in heterostructures for nanophotovoltaic devices
Author(s): Carlos Villa-Angulo; Daniel Sauceda-Carvajal; José R. Villa-Angulo; Rafael Villa-Angulo
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Paper Abstract

In heterostructures for nanophotovoltaic (NPV) devices, a number of layers are concatenated in a multilayer configuration. In the analysis of a multilayer configuration, it is commonly assumed that the intensity of the optical field has an exponential decrease along the direction of propagation inside the structure. Effects such as reflections and interference are neglected. These neglected effects become especially important ones once the layer dimension reaches several nanometers. At this width regimen, quantum effects are present since layers are thin compared with the penetration depth and the wavelength of the incident light. Quantum effects influence photon absorption and affect the optical field dissipation that controls electron-hole pairs generation. Hence, dissipation of the optical field inside an NPV device is an important aspect to consider in studying and determining performance properties. We employed the one-dimensional optical transfer matrix theory and the quantum well theory to analyze the optical field dissipation in the active layer of heterostructures for NPV devices. Illumination of 100  mW·cm−2 air mass 1.5 global (AM 1.5G) standard was considered for the analysis. The study was extended to low-dimensional heterostructures of the binary compound CdS/CdSe/CdS, the ternary compound Ga0.9Al0.1As/GaAs/Ga0.9Al0.1As, and the quaternary compound In0.85Ga0.15As0.30P0.70/In0.7Ga0.3As0.6P0.4/In0.85Ga0.15As0.30P0.70.

Paper Details

Date Published: 6 October 2016
PDF: 18 pages
J. Nanophoton. 10(4) 046001 doi: 10.1117/1.JNP.10.046001
Published in: Journal of Nanophotonics Volume 10, Issue 4
Show Author Affiliations
Carlos Villa-Angulo, Univ. Autónoma de Baja California (Mexico)
Daniel Sauceda-Carvajal, Ctr. de Investigación Científica y de Educación Superior de Ensenada B.C. (Mexico)
José R. Villa-Angulo, Univ. Autónoma de Baja California (Mexico)
Rafael Villa-Angulo, Univ. Autónoma de Baja California (Mexico)


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