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

doi:10.1109/LPT.2011.2140100

Numerical simulation of single-junction In_0.5Ga_0.5P solar cell with compositional grading configuration

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

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

A compositional grading layer between the p-In_0.5Ga _0.5P emitter layer and p-In_0.5Al_0.5P window layer in the p ⁺-n In_0.5Ga_0.5P 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 language	English
Article number	5744095
Pages (from-to)	822-824
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	23
Issue number	12
DOIs	https://doi.org/10.1109/LPT.2011.2140100
Publication status	Published - 2011 Jun 3

All Science Journal Classification (ASJC) codes

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

Access to Document

10.1109/LPT.2011.2140100

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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.",

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AU - Kuo, Yen Kuang

AU - Lin, Bing Cheng

AU - Chang, Jih Yuan

AU - Chang, Yi An

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