Numerical simulation of single-junction In0.5Ga0.5P solar cell with compositional grading configuration

Yen Kuang Kuo, Bing Cheng Lin, Jih Yuan Chang, Yi An Chang

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3 Citations (Scopus)

Abstract

A compositional grading layer between the p-In0.5Ga 0.5P emitter layer and p-In0.5Al0.5P window layer in the p +-n In0.5Ga0.5P solar cell is investigated numerically. With the insertion of the grading layer, the short-circuit current density and conversion efficiency are improved due to the enhancement of carrier-collection efficiency, which can be ascribed to the reduction of potential barrier height in the valance band and the existence of internal quasi-electric field in the conduction band. An optimized value of conversion efficiency can be obtained by appropriately adjusting the thickness of the grading layer.

Original languageEnglish
Article number5744095
Pages (from-to)822-824
Number of pages3
JournalIEEE Photonics Technology Letters
Volume23
Issue number12
DOIs
Publication statusPublished - 2011 Jun 3

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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