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Internal reflection influence on the multiple quantum well solar cell efficiency

M. PAULESCU1,* , E. TULCAN-PAULESCU1, A. NECULAE1, P. GRAVILA1

Affiliation

  1. Department of Physics, West University of Timisoara V Parvan 4, 300223 Timisoara, Romania

Abstract

The Multiple Quantum Well Solar Cell (MQWSC) consists of a quantum well system placed in the undoped region of a p-i-n solar cell. Despite an abundance of reports on MQWSC modeling, most of them are not addressing photon reflection at barrier-well interfaces. This paper evaluates the reflection influence on MQWSC conversion efficiency. For this, a realistic model for internal reflection in MQW system is derived and inserted into an ideal electro-optical MQWSC model. Our results based on numerical simulations substantiate that MQWSC efficiency decays significantly when reflection is considered. Thus, our model dealing with non-ideal structures is intended to be a tool to investigate cell optical parameters and to optimize the conversion efficiency..

Keywords

Multiple Quantum Wells, Solar Cells, Reflection, Efficiency, Simulations.

Submitted at: March 31, 2008
Accepted at: Aug. 28, 2008

Citation

M. PAULESCU, E. TULCAN-PAULESCU, A. NECULAE, P. GRAVILA, Internal reflection influence on the multiple quantum well solar cell efficiency, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 9, pp. 2441-2444 (2008)